A Long Winter's Nap - Sally and Nick are so excited to go ice skating tomorrow, that they can't fall asleep! Cat's friend Boris the bear can help! Off they go to the Gleep-sneep Woods to learn how Boris gets ready to take his long winter's nap. Back at home, Nick and Sally follow Boris' advice, and follow their own bedtime routine to get ready for bed. With the help of a bedtime story from Cat, they quickly fall asleep. The Tree Doctor - Sally's little maple sapling hasn't grown any bigger! To discover why, the Cat in the Hat takes the kids to meet Dr. Twiggles. With the help of the tree doctor and his songs, Nick and Sally discover how trees "eat"; - through their leaves and roots. They also learn that trees grow verrrry slowly. A few more years and their maple sapling will grow into a maple tree!

Maps - Nick and Sally are pretending to be pirates. The Cat takes them on a real pirate adventure by following a treasure map! They use landmarks to find their way to a real pirate treasure: parchment paper and ink pens to make their own pirate maps! Termite Towers - Sally and Nick just can't seem to keep their block tower from toppling over. The Cat in the Hat takes them to meet some expert tower builders: the termites! After shrinking down to bug-size, they learn from Terry termite how to build a tower that won't wiggle and wobble. With some engineering tips from a termite, Sally and Nick can build their block tower higher than before!

Maps - Nick and Sally are pretending to be pirates. The Cat takes them on a real pirate adventure by following a treasure map! They use landmarks to find their way to a real pirate treasure: parchment paper and ink pens to make their own pirate maps! Termite Towers - Sally and Nick just can't seem to keep their block tower from toppling over. The Cat in the Hat takes them to meet some expert tower builders: the termites! After shrinking down to bug-size, they learn from Terry termite how to build a tower that won't wiggle and wobble. With some engineering tips from a termite, Sally and Nick can build their block tower higher than before!

The Lost Egg - The kids are decorating the tree house for a party. The Cat knows the world's most fantabulous decorator: Stan the bower bird! Stan teaches the kids how to decorate with almost anything--shells, leaves, and pebbles. Now they can have a party in their own fantabulously decorated tree house! Hold on Tight - Nick is trying to hang onto the monkey bars but can't. The Cat takes him and Sally to meet the best holder-on-ever, his tiny little friend Larry the limpet. After shrinking down to limpet size, Nick and Sally learn how to hang onto the rocks with the help of natural hand- and footholds, some sticky stuff on their feet, and plain old perseverance. Now Nick knows that in order to stay on the monkey bars, he needs to keep trying!

The Lost Egg - The kids are decorating the tree house for a party. The Cat knows the world's most fantabulous decorator: Stan the bower bird! Stan teaches the kids how to decorate with almost anything--shells, leaves, and pebbles. Now they can have a party in their own fantabulously decorated tree house! Hold on Tight - Nick is trying to hang onto the monkey bars but can't. The Cat takes him and Sally to meet the best holder-on-ever, his tiny little friend Larry the limpet. After shrinking down to limpet size, Nick and Sally learn how to hang onto the rocks with the help of natural hand- and footholds, some sticky stuff on their feet, and plain old perseverance. Now Nick knows that in order to stay on the monkey bars, he needs to keep trying!

Little Lemmings - It's cold outside, but Nick and Sally want to keep playing. Is there a way to stay warm out in the cold? Cat's friend Lars the Lemming will know! He lives in the Wundra-Bundra-Tundra. It's cold out, but with Lars' fur coat, he doesn't even notice! They help Lars find a new home, one where there's more food for him and his family and they discover that he uses the snow to help keep him warm! Back at home the kids wear two winter coats to help them keep warm. But what's even warmer than that, hot chocolate! Keep the Beat - Nick and Sally have been running around the backyard and now their chests are thumpity thumping! The Cat explains that that is their hearts boom boom booming! But why? wonders Sally. A visit to Dr. Giggles will answer that question. By shrinking down super small, they follow Dr. Giggles' directions to follow the path that blood takes, learning about how the heart is a pump. They watch Thing 2's heart beat faster when he runs, and slows down when he stops. With all this running around, their bodies are now making another sound - rumbling tummies!

Nick and Sally are having a sleepover in the treehouse and Nick is startled by a shadow. The Cat explains that shadows aren't scary if you know what they are. He takes them to Silhouette Valley where they learn that shadows are made by blocking light and the position of the light can make shadows grow or shrink. Nick unintentionally loses Sally's bouncy ball. They go to Ballaballo and learn how different balls are made of different materials, which help them move in different ways.

Little Lemmings - It's cold outside, but Nick and Sally want to keep playing. Is there a way to stay warm out in the cold? Cat's friend Lars the Lemming will know! He lives in the Wundra-Bundra-Tundra. It's cold out, but with Lars' fur coat, he doesn't even notice! They help Lars find a new home, one where there's more food for him and his family and they discover that he uses the snow to help keep him warm! Back at home the kids wear two winter coats to help them keep warm. But what's even warmer than that, hot chocolate! Keep the Beat - Nick and Sally have been running around the backyard and now their chests are thumpity thumping! The Cat explains that that is their hearts boom boom booming! But why? wonders Sally. A visit to Dr. Giggles will answer that question. By shrinking down super small, they follow Dr. Giggles' directions to follow the path that blood takes, learning about how the heart is a pump. They watch Thing 2's heart beat faster when he runs, and slows down when he stops. With all this running around, their bodies are now making another sound - rumbling tummies!

Take a Walk - Sally and Nick are practicing to be in a three-legged race, but walking on three legs is hard! Well if anyone knows about walking, its Cat's friends Sid the centipede, Spinny the spider and Bugsy the beetle! They all teach the kids how they walk on many legs by keeping a steady pace and walking in a rhythm and a beat. Back at home, Nick and Sally practice what they learned by using their own special rhythm! Cotton Patch - Oh no! Nick has torn his favourite shirt! He needs a perfect patch of cotton to fix it. Good thing Cat's friend Dr. Twiggles knows all about cotton! Off to Fluff'n Stuff Fields to see him! Once there, the kids are astonished to learn that you can make clothes from plants! Dr. Twiggles shows them how to pick the cotton, clean and dry it, comb it and spin it into thread. Finally, he demonstrates how the thread comes together to make a patch by using his loom. They even learn how to dye the cotton by using berry juice. Nick's favourite shirt is as good as new!

Surprise Surprise - Try as they might, Nick and Sally just can't learn to do a somersault. Luckily Cat's friend Luis the Armadillo is the king of the roly polys! But when they find Luis, they learn that he only rolls when he gets surprised. They take turns trying to surprise him, and when they finally do, they're the ones surprised when they learn that not only can Luis roll, but he can even run underwater! Back at home, they follow Luis' advice and are now able to somersault! A Howling Good Time - Nick and Sally are pretending to be lost adventurers when Sally wonders what to do if you really do get lost. The Cat in the Hat knows a wolf pup who knows all about getting lost and found! In the Hooty Howly Woods Grayson shows them how wolves howl to communicate and to find each other. Now Sally and Nick know one thing to do if they get lost - howl for mom!

Take a Walk - Sally and Nick are practicing to be in a three-legged race, but walking on three legs is hard! Well if anyone knows about walking, its Cat's friends Sid the centipede, Spinny the spider and Bugsy the beetle! They all teach the kids how they walk on many legs by keeping a steady pace and walking in a rhythm and a beat. Back at home, Nick and Sally practice what they learned by using their own special rhythm! Cotton Patch - Oh no! Nick has torn his favourite shirt! He needs a perfect patch of cotton to fix it. Good thing Cat's friend Dr. Twiggles knows all about cotton! Off to Fluff'n Stuff Fields to see him! Once there, the kids are astonished to learn that you can make clothes from plants! Dr. Twiggles shows them how to pick the cotton, clean and dry it, comb it and spin it into thread. Finally, he demonstrates how the thread comes together to make a patch by using his loom. They even learn how to dye the cotton by using berry juice. Nick's favourite shirt is as good as new!

Name That Sound - Sally and Nick are trying to stump each other by guessing the animal sounds they're making. But the Cat stumps them both when he tries to make the sound of a cricket! That didn't sound like a cricket. They all try but just can't figure out how a cricket makes its noise. Well Cat's friend Clarence the Cricket can surely show them! Off to the Grassy-Grove-Dell to meet him! He shows him his wings, one that is comb-like, the other a scraper, when he rubs them together, he makes his wonderful cricket noise. Back at home Nick and Sally find things around the house they can use to mimic Clarence - a deck of cards and a comb! Fabulous Feathers - Sally is playing dressup, but her favourite hat no longer has any feathers on it. Where can they find more? The Cat's good friend Puranjay might be able to help! He's a peacock who lives in Feathery Flats, he has plenty of feathers! Sally collects the feathers that have fallen out of Puranjay and discover that each one has it's own distinct job. But it's his tail feathers that are just jazzy and snazzy enough for her hat! They are the most fabulous feathers!

Secret Super Digger - Sally is trying to grow a flower for her mom, but it just won't grow. Time to see Finola! At Finola's Farm, she introduces Cat, Sally and Nick to her secret super digger - Diggery the earthworm. Diggery shows them how plant roots need water air and compost, which Diggery helps to make. Sally's flower is sure to grow once she gets some of her own secret super diggers to help! Pucker Up and Blow - Nick and Sally are trying to whistle but they just can't seem to get it right! The Cat takes them to visit his friend, Rocky the Winter Wren, who is an expert whistler. Rocky, and his son Ricky, offer this advice: if you want to whistle, start with one note and practice.

Name That Sound - Sally and Nick are trying to stump each other by guessing the animal sounds they're making. But the Cat stumps them both when he tries to make the sound of a cricket! That didn't sound like a cricket. They all try but just can't figure out how a cricket makes its noise. Well Cat's friend Clarence the Cricket can surely show them! Off to the Grassy-Grove-Dell to meet him! He shows him his wings, one that is comb-like, the other a scraper, when he rubs them together, he makes his wonderful cricket noise. Back at home Nick and Sally find things around the house they can use to mimic Clarence - a deck of cards and a comb! Fabulous Feathers - Sally is playing dressup, but her favourite hat no longer has any feathers on it. Where can they find more? The Cat's good friend Puranjay might be able to help! He's a peacock who lives in Feathery Flats, he has plenty of feathers! Sally collects the feathers that have fallen out of Puranjay and discover that each one has it's own distinct job. But it's his tail feathers that are just jazzy and snazzy enough for her hat! They are the most fabulous feathers!

Babies - Sally is looking after some baby hamsters, but how can she and Nick hold them right? Well, different animals hold their babies different ways. A trip to Ozzie-Wozz Outback will help them, Cat has some friends who know all about carrying babies! First up is Wilma the spider, who carries all her babies on her back. Then it's off to see Dilly the crocodile, she carries her babies in her mouth! And the last stop, Coco the Koala who uses a pouch to carry her little one. But how does that help Nick and Sally? Well all the babies were happiest with their moms, so they'll just leave them all together. Fast - It's a race to the treehouse, but Nick and Sally wish they could go as fast as an airplane! How about a peregrine? asks The Cat. What's that? The fastest creature in the world! His friend Perry the Peregrine Falcon will show them how fast he can be. Off to Steep-and-Deep Cliffs to meet him! Using Cat's special backpacks, the kids have wings like Perry's so they can fly through the air too. Perry shows them how he dives straight down to catch his food. Who wants to be as fast as an airplane, when you can be a peregrine falcon!

Blue Feet Are Neat - Nick and Sally are trying out their new blue rubber boots but they keep getting stuck in the mud! Cat knows just who can help them - Buster, the Blue-footed Booby bird. Buster is only too happy to show them how his wide, flat blue feet help him move easily over the muddy shore. With Cat's help to make their boots wide and flat, Sally and Nick can now walk across the mud without getting stuck - just like Buster! Reef Magic - Nick has difficulty learning a "disappearing" magic trick, when who should appear but The Cat in the Hat! He takes Nick and Sally to the coral reef of Scoobamareen. There they learn that distraction is a great way for some sea creatures to hide themselves from other fish who might be looking for a bite to eat. Back at home, Nick and Sally use what they learned to make their stuffed panda disappear!

Babies - Sally is looking after some baby hamsters, but how can she and Nick hold them right? Well, different animals hold their babies different ways. A trip to Ozzie-Wozz Outback will help them, Cat has some friends who know all about carrying babies! First up is Wilma the spider, who carries all her babies on her back. Then it's off to see Dilly the crocodile, she carries her babies in her mouth! And the last stop, Coco the Koala who uses a pouch to carry her little one. But how does that help Nick and Sally? Well all the babies were happiest with their moms, so they'll just leave them all together. Fast - It's a race to the treehouse, but Nick and Sally wish they could go as fast as an airplane! How about a peregrine? asks The Cat. What's that? The fastest creature in the world! His friend Perry the Peregrine Falcon will show them how fast he can be. Off to Steep-and-Deep Cliffs to meet him! Using Cat's special backpacks, the kids have wings like Perry's so they can fly through the air too. Perry shows them how he dives straight down to catch his food. Who wants to be as fast as an airplane, when you can be a peregrine falcon!

Flutter By Butterfly - Sally and Nick are pretending to be butterflies, but they're not very good at it. The Cat takes them to meet Bernadette the Monarch butterfly, who can teach them all about fluttering. Following Bernadette from Milky Weed Meadow to Prickly Pines forest they learn that butterfly wings are used for so much more than just fluttering! Pretty in Pink - Sally and Nick are having fun trying out different moves when the Cat arrives to show them some cool moves of his own. He learned them from Pinkie the flamingo. The kids want to learn too, so off they go to Gooney Goon Lagoon! There they learn all about flamingos - fun moves and all! Back at home Cat, Nick and Sally all move together... the flamingo way!

Be Cool - Phew, it's hot outside! How are Sally and Nick going to stay cool? Cat suggests that they should visit some friends in the Dizzle-dazzle Desert to learn how to keep cool. They learn that some animals are light coloured, some stay out of the sun, and some, like Tommy the coolest toad around, just mooove sloooow. Nick and Sally take their advice, but Cat has an even better idea - run through a sprinkler! Elephant Walk - When building a toy construction set, Nick and Sally wonder if there's such thing as a one-thing-does-it-all tool. Well, the Cat knows just who to visit to find out - Themba the African elephant! Themba, and her daughter Efia, show the Cat and the kids all the different things their trunks can do. Nick and Sally realize that elephant trucks are just like hands, so they already have a one-thing-does-it-all tool!

Flutter By Butterfly - Sally and Nick are pretending to be butterflies, but they're not very good at it. The Cat takes them to meet Bernadette the Monarch butterfly, who can teach them all about fluttering. Following Bernadette from Milky Weed Meadow to Prickly Pines forest they learn that butterfly wings are used for so much more than just fluttering! Pretty in Pink - Sally and Nick are having fun trying out different moves when the Cat arrives to show them some cool moves of his own. He learned them from Pinkie the flamingo. The kids want to learn too, so off they go to Gooney Goon Lagoon! There they learn all about flamingos - fun moves and all! Back at home Cat, Nick and Sally all move together... the flamingo way!

Sally is trying to make a vase for her mother but each one she tries falls over. Cat takes the kids to Blueprintia where designs become real. They discover what they can learn by designing before building, which helps Sally make the vase back at home. The kids are creating a game that involves "fishing" for prizes, but they can't "catch" any of the prizes. The Cat takes them to Arcade Island where they discover what will and won't be attracted to a magnet.

The kids need to move a big rock in their backyard so they can plant an apple tree. The Cat takes them to Machine-a-Ma-Zoo, where they learn how a lever can solve their problem. Sally is playing a song on an instrument made up of different things in the Treehouse but she can't find the right note for her song. In Gongolia, they find out that bigger things make lower sounds and smaller things make higher sounds.

Nick and Sally can't agree on the "right" way to sort their toys. The Cat takes them to Toborrowland to help him return a bunch of things. As they confront different obstacles, they have to come up with different ways of sorting Cat's things, and they realize there are lots of ways to sort. T The kids are making bubbles and want to save one for Sally's mom. But they always pop. In Odds-n-Endsville they find out that landing bubbles on some surfaces helps the bubbles last longer.

Flutter By Butterfly - Sally and Nick are pretending to be butterflies, but they're not very good at it. The Cat takes them to meet Bernadette the Monarch butterfly, who can teach them all about fluttering. Following Bernadette from Milky Weed Meadow to Prickly Pines forest they learn that butterfly wings are used for so much more than just fluttering! Pretty in Pink - Sally and Nick are having fun trying out different moves when the Cat arrives to show them some cool moves of his own. He learned them from Pinkie the flamingo. The kids want to learn too, so off they go to Gooney Goon Lagoon! There they learn all about flamingos - fun moves and all! Back at home Cat, Nick and Sally all move together... the flamingo way!

Sally is trying to make a vase for her mother but each one she tries falls over. Cat takes the kids to Blueprintia where designs become real. They discover what they can learn by designing before building, which helps Sally make the vase back at home. The kids are creating a game that involves "fishing" for prizes, but they can't "catch" any of the prizes. The Cat takes them to Arcade Island where they discover what will and won't be attracted to a magnet.

The kids need to move a big rock in their backyard so they can plant an apple tree. The Cat takes them to Machine-a-Ma-Zoo, where they learn how a lever can solve their problem. Sally is playing a song on an instrument made up of different things in the Treehouse but she can't find the right note for her song. In Gongolia, they find out that bigger things make lower sounds and smaller things make higher sounds.

Nick and Sally can't agree on the "right" way to sort their toys. The Cat takes them to Toborrowland to help him return a bunch of things. As they confront different obstacles, they have to come up with different ways of sorting Cat's things, and they realize there are lots of ways to sort. T The kids are making bubbles and want to save one for Sally's mom. But they always pop. In Odds-n-Endsville they find out that landing bubbles on some surfaces helps the bubbles last longer.

When Nick's water glass suddenly falls over without anyone touching it, Cat comes to help them solve the mystery. They go to The Great Causeway and discover the world of cause and effect. Nick and Sally are playing musical instruments and notice that Fish's water is rippling. Why? Cat takes them to the Jingly Jungle for a concert by the great Vibrato. They discover that sound and vibration go together.

Little Lemmings - It's cold outside, but Nick and Sally want to keep playing. Is there a way to stay warm out in the cold? Cat's friend Lars the Lemming will know! He lives in the Wundra-Bundra-Tundra. It's cold out, but with Lars' fur coat, he doesn't even notice! They help Lars find a new home, one where there's more food for him and his family and they discover that he uses the snow to help keep him warm! Back at home the kids wear two winter coats to help them keep warm. But what's even warmer than that, hot chocolate! Keep the Beat - Nick and Sally have been running around the backyard and now their chests are thumpity thumping! The Cat explains that that is their hearts boom boom booming! But why? wonders Sally. A visit to Dr. Giggles will answer that question. By shrinking down super small, they follow Dr. Giggles' directions to follow the path that blood takes, learning about how the heart is a pump. They watch Thing 2's heart beat faster when he runs, and slows down when he stops. With all this running around, their bodies are now making another sound - rumbling tummies!

Little Lemmings - It's cold outside, but Nick and Sally want to keep playing. Is there a way to stay warm out in the cold? Cat's friend Lars the Lemming will know! He lives in the Wundra-Bundra-Tundra. It's cold out, but with Lars' fur coat, he doesn't even notice! They help Lars find a new home, one where there's more food for him and his family and they discover that he uses the snow to help keep him warm! Back at home the kids wear two winter coats to help them keep warm. But what's even warmer than that, hot chocolate! Keep the Beat - Nick and Sally have been running around the backyard and now their chests are thumpity thumping! The Cat explains that that is their hearts boom boom booming! But why? wonders Sally. A visit to Dr. Giggles will answer that question. By shrinking down super small, they follow Dr. Giggles' directions to follow the path that blood takes, learning about how the heart is a pump. They watch Thing 2's heart beat faster when he runs, and slows down when he stops. With all this running around, their bodies are now making another sound - rumbling tummies!

Sally is trying to make a vase for her mother but each one she tries falls over. Cat takes the kids to Blueprintia where designs become real. They discover what they can learn by designing before building, which helps Sally make the vase back at home. The kids are creating a game that involves "fishing" for prizes, but they can't "catch" any of the prizes. The Cat takes them to Arcade Island where they discover what will and won't be attracted to a magnet.

The kids need to move a big rock in their backyard so they can plant an apple tree. The Cat takes them to Machine-a-Ma-Zoo, where they learn how a lever can solve their problem. Sally is playing a song on an instrument made up of different things in the Treehouse but she can't find the right note for her song. In Gongolia, they find out that bigger things make lower sounds and smaller things make higher sounds.

Nick and Sally can't agree on the "right" way to sort their toys. The Cat takes them to Toborrowland to help him return a bunch of things. As they confront different obstacles, they have to come up with different ways of sorting Cat's things, and they realize there are lots of ways to sort. T The kids are making bubbles and want to save one for Sally's mom. But they always pop. In Odds-n-Endsville they find out that landing bubbles on some surfaces helps the bubbles last longer.

Little Lemmings - It's cold outside, but Nick and Sally want to keep playing. Is there a way to stay warm out in the cold? Cat's friend Lars the Lemming will know! He lives in the Wundra-Bundra-Tundra. It's cold out, but with Lars' fur coat, he doesn't even notice! They help Lars find a new home, one where there's more food for him and his family and they discover that he uses the snow to help keep him warm! Back at home the kids wear two winter coats to help them keep warm. But what's even warmer than that, hot chocolate! Keep the Beat - Nick and Sally have been running around the backyard and now their chests are thumpity thumping! The Cat explains that that is their hearts boom boom booming! But why? wonders Sally. A visit to Dr. Giggles will answer that question. By shrinking down super small, they follow Dr. Giggles' directions to follow the path that blood takes, learning about how the heart is a pump. They watch Thing 2's heart beat faster when he runs, and slows down when he stops. With all this running around, their bodies are now making another sound - rumbling tummies!

Sally is trying to make a vase for her mother but each one she tries falls over. Cat takes the kids to Blueprintia where designs become real. They discover what they can learn by designing before building, which helps Sally make the vase back at home. The kids are creating a game that involves "fishing" for prizes, but they can't "catch" any of the prizes. The Cat takes them to Arcade Island where they discover what will and won't be attracted to a magnet.

The kids need to move a big rock in their backyard so they can plant an apple tree. The Cat takes them to Machine-a-Ma-Zoo, where they learn how a lever can solve their problem. Sally is playing a song on an instrument made up of different things in the Treehouse but she can't find the right note for her song. In Gongolia, they find out that bigger things make lower sounds and smaller things make higher sounds.

Nick and Sally can't agree on the "right" way to sort their toys. The Cat takes them to Toborrowland to help him return a bunch of things. As they confront different obstacles, they have to come up with different ways of sorting Cat's things, and they realize there are lots of ways to sort. T The kids are making bubbles and want to save one for Sally's mom. But they always pop. In Odds-n-Endsville they find out that landing bubbles on some surfaces helps the bubbles last longer.

When Nick's water glass suddenly falls over without anyone touching it, Cat comes to help them solve the mystery. They go to The Great Causeway and discover the world of cause and effect. Nick and Sally are playing musical instruments and notice that Fish's water is rippling. Why? Cat takes them to the Jingly Jungle for a concert by the great Vibrato. They discover that sound and vibration go together.

Name That Sound - Sally and Nick are trying to stump each other by guessing the animal sounds they're making. But the Cat stumps them both when he tries to make the sound of a cricket! That didn't sound like a cricket. They all try but just can't figure out how a cricket makes its noise. Well Cat's friend Clarence the Cricket can surely show them! Off to the Grassy-Grove-Dell to meet him! He shows him his wings, one that is comb-like, the other a scraper, when he rubs them together, he makes his wonderful cricket noise. Back at home Nick and Sally find things around the house they can use to mimic Clarence - a deck of cards and a comb! Fabulous Feathers - Sally is playing dressup, but her favourite hat no longer has any feathers on it. Where can they find more? The Cat's good friend Puranjay might be able to help! He's a peacock who lives in Feathery Flats, he has plenty of feathers! Sally collects the feathers that have fallen out of Puranjay and discover that each one has it's own distinct job. But it's his tail feathers that are just jazzy and snazzy enough for her hat! They are the most fabulous feathers!

Name That Sound - Sally and Nick are trying to stump each other by guessing the animal sounds they're making. But the Cat stumps them both when he tries to make the sound of a cricket! That didn't sound like a cricket. They all try but just can't figure out how a cricket makes its noise. Well Cat's friend Clarence the Cricket can surely show them! Off to the Grassy-Grove-Dell to meet him! He shows him his wings, one that is comb-like, the other a scraper, when he rubs them together, he makes his wonderful cricket noise. Back at home Nick and Sally find things around the house they can use to mimic Clarence - a deck of cards and a comb! Fabulous Feathers - Sally is playing dressup, but her favourite hat no longer has any feathers on it. Where can they find more? The Cat's good friend Puranjay might be able to help! He's a peacock who lives in Feathery Flats, he has plenty of feathers! Sally collects the feathers that have fallen out of Puranjay and discover that each one has it's own distinct job. But it's his tail feathers that are just jazzy and snazzy enough for her hat! They are the most fabulous feathers!

Sally is trying to make a vase for her mother but each one she tries falls over. Cat takes the kids to Blueprintia where designs become real. They discover what they can learn by designing before building, which helps Sally make the vase back at home. The kids are creating a game that involves "fishing" for prizes, but they can't "catch" any of the prizes. The Cat takes them to Arcade Island where they discover what will and won't be attracted to a magnet.

The kids need to move a big rock in their backyard so they can plant an apple tree. The Cat takes them to Machine-a-Ma-Zoo, where they learn how a lever can solve their problem. Sally is playing a song on an instrument made up of different things in the Treehouse but she can't find the right note for her song. In Gongolia, they find out that bigger things make lower sounds and smaller things make higher sounds.

Nick and Sally can't agree on the "right" way to sort their toys. The Cat takes them to Toborrowland to help him return a bunch of things. As they confront different obstacles, they have to come up with different ways of sorting Cat's things, and they realize there are lots of ways to sort. T The kids are making bubbles and want to save one for Sally's mom. But they always pop. In Odds-n-Endsville they find out that landing bubbles on some surfaces helps the bubbles last longer.

Name That Sound - Sally and Nick are trying to stump each other by guessing the animal sounds they're making. But the Cat stumps them both when he tries to make the sound of a cricket! That didn't sound like a cricket. They all try but just can't figure out how a cricket makes its noise. Well Cat's friend Clarence the Cricket can surely show them! Off to the Grassy-Grove-Dell to meet him! He shows him his wings, one that is comb-like, the other a scraper, when he rubs them together, he makes his wonderful cricket noise. Back at home Nick and Sally find things around the house they can use to mimic Clarence - a deck of cards and a comb! Fabulous Feathers - Sally is playing dressup, but her favourite hat no longer has any feathers on it. Where can they find more? The Cat's good friend Puranjay might be able to help! He's a peacock who lives in Feathery Flats, he has plenty of feathers! Sally collects the feathers that have fallen out of Puranjay and discover that each one has it's own distinct job. But it's his tail feathers that are just jazzy and snazzy enough for her hat! They are the most fabulous feathers!

Sally is trying to make a vase for her mother but each one she tries falls over. Cat takes the kids to Blueprintia where designs become real. They discover what they can learn by designing before building, which helps Sally make the vase back at home. The kids are creating a game that involves "fishing" for prizes, but they can't "catch" any of the prizes. The Cat takes them to Arcade Island where they discover what will and won't be attracted to a magnet.

The kids need to move a big rock in their backyard so they can plant an apple tree. The Cat takes them to Machine-a-Ma-Zoo, where they learn how a lever can solve their problem. Sally is playing a song on an instrument made up of different things in the Treehouse but she can't find the right note for her song. In Gongolia, they find out that bigger things make lower sounds and smaller things make higher sounds.

Nick and Sally can't agree on the "right" way to sort their toys. The Cat takes them to Toborrowland to help him return a bunch of things. As they confront different obstacles, they have to come up with different ways of sorting Cat's things, and they realize there are lots of ways to sort. T The kids are making bubbles and want to save one for Sally's mom. But they always pop. In Odds-n-Endsville they find out that landing bubbles on some surfaces helps the bubbles last longer.

When Nick's water glass suddenly falls over without anyone touching it, Cat comes to help them solve the mystery. They go to The Great Causeway and discover the world of cause and effect. Nick and Sally are playing musical instruments and notice that Fish's water is rippling. Why? Cat takes them to the Jingly Jungle for a concert by the great Vibrato. They discover that sound and vibration go together.

Sally invents a secret treehouse handshake, but Nick can't remember the sequence. The Cat takes them to Over-and-Overton, where they figure out how to get through a series of obstacles by recognizing patterns. Nick and Sally don't understand why one toy car goes faster than another. The Cat says he needs their help to move some big pictures and along the way, they find out about how air is matter (takes up space and has mass) and can push on objects.

Sally invents a secret treehouse handshake, but Nick can't remember the sequence. The Cat takes them to Over-and-Overton, where they figure out how to get through a series of obstacles by recognizing patterns. Nick and Sally don't understand why one toy car goes faster than another. The Cat says he needs their help to move some big pictures and along the way, they find out about how air is matter (takes up space and has mass) and can push on objects.

Sally invents a secret treehouse handshake, but Nick can't remember the sequence. The Cat takes them to Over-and-Overton, where they figure out how to get through a series of obstacles by recognizing patterns. Nick and Sally don't understand why one toy car goes faster than another. The Cat says he needs their help to move some big pictures and along the way, they find out about how air is matter (takes up space and has mass) and can push on objects.

Sally and Nick have wrapped Father's Day gifts, but when they get mixed up the kids can't tell which is which. Cat takes them to Zippy Zaroo's Cookie Factory where each cookie has a toy inside. When the shrunken Thingamajigger ends up inside a cookie, they have to use their knowledge about the properties of matter and deductive reasoning to identify which cookie it's in. Nick and Sally are disappointed when their toy's battery runs out of power. The Cat takes them to Lots-o-Lakes Land to see the flight of the Dipsydoodlers. But along the way, the Thinga-ma-jigger runs out of Go-Go-Go juice and they have to find alternative forms of energy to make it go.

Sally and Nick have wrapped Father's Day gifts, but when they get mixed up the kids can't tell which is which. Cat takes them to Zippy Zaroo's Cookie Factory where each cookie has a toy inside. When the shrunken Thingamajigger ends up inside a cookie, they have to use their knowledge about the properties of matter and deductive reasoning to identify which cookie it's in. Nick and Sally are disappointed when their toy's battery runs out of power. The Cat takes them to Lots-o-Lakes Land to see the flight of the Dipsydoodlers. But along the way, the Thinga-ma-jigger runs out of Go-Go-Go juice and they have to find alternative forms of energy to make it go.

Sally and Nick have wrapped Father's Day gifts, but when they get mixed up the kids can't tell which is which. Cat takes them to Zippy Zaroo's Cookie Factory where each cookie has a toy inside. When the shrunken Thingamajigger ends up inside a cookie, they have to use their knowledge about the properties of matter and deductive reasoning to identify which cookie it's in. Nick and Sally are disappointed when their toy's battery runs out of power. The Cat takes them to Lots-o-Lakes Land to see the flight of the Dipsydoodlers. But along the way, the Thinga-ma-jigger runs out of Go-Go-Go juice and they have to find alternative forms of energy to make it go.

Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet. Cat takes them to see the Song Flower Sisters, who need just the right mixture of water and soil before they'll sing. Through multiple trials, Nick and Sally learn the importance of recording procedures and of perseverance as they find the right mixture for the flowers. Sally wants to make a mobile balance with four identical rubber ducks, but she's only got three. Cat takes them to The Bazaar at Balance Point, where the Things throw everything off balance. Sally discovers that weight and size are not always equivalent and that there are many different ways to balance objects.

Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet. Cat takes them to see the Song Flower Sisters, who need just the right mixture of water and soil before they'll sing. Through multiple trials, Nick and Sally learn the importance of recording procedures and of perseverance as they find the right mixture for the flowers. Sally wants to make a mobile balance with four identical rubber ducks, but she's only got three. Cat takes them to The Bazaar at Balance Point, where the Things throw everything off balance. Sally discovers that weight and size are not always equivalent and that there are many different ways to balance objects.

Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet. Cat takes them to see the Song Flower Sisters, who need just the right mixture of water and soil before they'll sing. Through multiple trials, Nick and Sally learn the importance of recording procedures and of perseverance as they find the right mixture for the flowers. Sally wants to make a mobile balance with four identical rubber ducks, but she's only got three. Cat takes them to The Bazaar at Balance Point, where the Things throw everything off balance. Sally discovers that weight and size are not always equivalent and that there are many different ways to balance objects.

When Nick and Sally's boat sinks, they need to build another boat, but don't know how. A trip to Floating Island helps them discover that, along with needing the right material, you also need to make the shape of your boat float. Nick is in pursuit of finding out how to build a drawbridge. In Spansylvania, they meet a dragon who chases after them - and along the way they find out that some materials are better suited for bridges than others.

Sally wants to fly her kite but can't seem to work out the timing to get the wind right - after all, you can't see wind. The Cat takes them to Windnasium where they learn to "see" wind in all kinds of ways. When Nick's favorite flyer gets stuck in the tree, Nick wishes he could jump really high and retrieve it, but gravity holds him down. Cat takes them to Gravity Drop where they discover what happens when there's more or less gravity. And Nick figures out how to use gravity to get his plane back.

When Nick and Sally's boat sinks, they need to build another boat, but don't know how. A trip to Floating Island helps them discover that, along with needing the right material, you also need to make the shape of your boat float. Nick is in pursuit of finding out how to build a drawbridge. In Spansylvania, they meet a dragon who chases after them - and along the way they find out that some materials are better suited for bridges than others.

Sally invents a secret treehouse handshake, but Nick can't remember the sequence. The Cat takes them to Over-and-Overton, where they figure out how to get through a series of obstacles by recognizing patterns. Nick and Sally don't understand why one toy car goes faster than another. The Cat says he needs their help to move some big pictures and along the way, they find out about how air is matter (takes up space and has mass) and can push on objects.

Nick and Sally's soccer game is obstructed by a large log that they can't lift out of the way. In Machine-a-ma-zoo they discover that there's a much easier way to move that log than by lifting it. Nick's new plane is flying well but is a little dull so the kids add buttons and glitter but then they don't understand why the plane isn't flying as well as it did. In Odds n' Endsville, they discover that there can be too much of a good thing, and sometimes keeping it simple is the best solution.

Sally invents a secret treehouse handshake, but Nick can't remember the sequence. The Cat takes them to Over-and-Overton, where they figure out how to get through a series of obstacles by recognizing patterns. Nick and Sally don't understand why one toy car goes faster than another. The Cat says he needs their help to move some big pictures and along the way, they find out about how air is matter (takes up space and has mass) and can push on objects.

When Nick and Sally's boat sinks, they need to build another boat, but don't know how. A trip to Floating Island helps them discover that, along with needing the right material, you also need to make the shape of your boat float. Nick is in pursuit of finding out how to build a drawbridge. In Spansylvania, they meet a dragon who chases after them - and along the way they find out that some materials are better suited for bridges than others.

When Nick and Sally's boat sinks, they need to build another boat, but don't know how. A trip to Floating Island helps them discover that, along with needing the right material, you also need to make the shape of your boat float. Nick is in pursuit of finding out how to build a drawbridge. In Spansylvania, they meet a dragon who chases after them - and along the way they find out that some materials are better suited for bridges than others.

Sally and Nick have wrapped Father's Day gifts, but when they get mixed up the kids can't tell which is which. Cat takes them to Zippy Zaroo's Cookie Factory where each cookie has a toy inside. When the shrunken Thingamajigger ends up inside a cookie, they have to use their knowledge about the properties of matter and deductive reasoning to identify which cookie it's in. Nick and Sally are disappointed when their toy's battery runs out of power. The Cat takes them to Lots-o-Lakes Land to see the flight of the Dipsydoodlers. But along the way, the Thinga-ma-jigger runs out of Go-Go-Go juice and they have to find alternative forms of energy to make it go.

Sally and Nick have wrapped Father's Day gifts, but when they get mixed up the kids can't tell which is which. Cat takes them to Zippy Zaroo's Cookie Factory where each cookie has a toy inside. When the shrunken Thingamajigger ends up inside a cookie, they have to use their knowledge about the properties of matter and deductive reasoning to identify which cookie it's in. Nick and Sally are disappointed when their toy's battery runs out of power. The Cat takes them to Lots-o-Lakes Land to see the flight of the Dipsydoodlers. But along the way, the Thinga-ma-jigger runs out of Go-Go-Go juice and they have to find alternative forms of energy to make it go.

When Sally accidentally destroys Nick's model of a mountain, the Cat takes them to meet Sara of Serendip, an inventor who helps them understand that you can make new discoveries through your mistakes. Nick discovers that Sally can't hear him when he yells from his bedroom window if their bedroom windows are closed. The Cat takes them to the Soundy Sea and they learn that sound travels in waves.

Sally keeps getting found when they play Hide and Seek. Cat takes them to Tagaloo to meet a great seeker. They keep trying to catch up to the elusive Tagaloop, and along the way they find out that they can use more than their sense of sight to find things. Sally loses her special bead in the sandbox and they can't find it. Cat takes them to the Hole-Lot-of Funhouse, where they have to make their way across different floors without falling through. Along the way they discover how the size and shape of materials can be used to sort or filter different materials.

When Sally accidentally destroys Nick's model of a mountain, the Cat takes them to meet Sara of Serendip, an inventor who helps them understand that you can make new discoveries through your mistakes. Nick discovers that Sally can't hear him when he yells from his bedroom window if their bedroom windows are closed. The Cat takes them to the Soundy Sea and they learn that sound travels in waves.

Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet. Cat takes them to see the Song Flower Sisters, who need just the right mixture of water and soil before they'll sing. Through multiple trials, Nick and Sally learn the importance of recording procedures and of perseverance as they find the right mixture for the flowers. Sally wants to make a mobile balance with four identical rubber ducks, but she's only got three. Cat takes them to The Bazaar at Balance Point, where the Things throw everything off balance. Sally discovers that weight and size are not always equivalent and that there are many different ways to balance objects.

Sally invents a secret treehouse handshake, but Nick can't remember the sequence. The Cat takes them to Over-and-Overton, where they figure out how to get through a series of obstacles by recognizing patterns. Nick and Sally don't understand why one toy car goes faster than another. The Cat says he needs their help to move some big pictures and along the way, they find out about how air is matter (takes up space and has mass) and can push on objects.

Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet. Cat takes them to see the Song Flower Sisters, who need just the right mixture of water and soil before they'll sing. Through multiple trials, Nick and Sally learn the importance of recording procedures and of perseverance as they find the right mixture for the flowers. Sally wants to make a mobile balance with four identical rubber ducks, but she's only got three. Cat takes them to The Bazaar at Balance Point, where the Things throw everything off balance. Sally discovers that weight and size are not always equivalent and that there are many different ways to balance objects.

The kids want to get a trunk up into the treehouse and go to the Machine-a-Ma-Zoo, where they're introduced to simple machines, and learn about the pulley. Sally loses her "slidiness" and when they go to the Frictionarium, they find out that there's a force called friction that can stop a person from sliding.

Jumping on the Moon - Nick and Sally are trying to jump high enough to touch the moon, but "what goes up must come down" says the Cat. That's gravity! And to show them just what gravity is, that means a trip to the moon! That's where they meet Astronaut Audrey who takes them for a space walk to learn all about gravity. Sneezy Riders - Sally and Nick are playing hide and seek, but Nick keeps sneezing! How can they stop it from happening? Good thing Cat's friend Cluey Looey will be able to help them! At Muddyfeet Waterhole they discover that Louie is having the same problem! Nothing a trip inside Louie's nose can't solve! Inside a super shrunken Thingamajigger, Nick, Sally and Cat discover what causes sneezing and what they can do to avoid it from happening!

The kids want to get a trunk up into the treehouse and go to the Machine-a-Ma-Zoo, where they're introduced to simple machines, and learn about the pulley. Sally loses her "slidiness" and when they go to the Frictionarium, they find out that there's a force called friction that can stop a person from sliding.

Nick and Sally's soccer game is obstructed by a large log that they can't lift out of the way. In Machine-a-ma-zoo they discover that there's a much easier way to move that log than by lifting it. Nick's new plane is flying well but is a little dull so the kids add buttons and glitter but then they don't understand why the plane isn't flying as well as it did. In Odds n' Endsville, they discover that there can be too much of a good thing, and sometimes keeping it simple is the best solution.

Sally and Nick have wrapped Father's Day gifts, but when they get mixed up the kids can't tell which is which. Cat takes them to Zippy Zaroo's Cookie Factory where each cookie has a toy inside. When the shrunken Thingamajigger ends up inside a cookie, they have to use their knowledge about the properties of matter and deductive reasoning to identify which cookie it's in. Nick and Sally are disappointed when their toy's battery runs out of power. The Cat takes them to Lots-o-Lakes Land to see the flight of the Dipsydoodlers. But along the way, the Thinga-ma-jigger runs out of Go-Go-Go juice and they have to find alternative forms of energy to make it go.

Nick and Sally's soccer game is obstructed by a large log that they can't lift out of the way. In Machine-a-ma-zoo they discover that there's a much easier way to move that log than by lifting it. Nick's new plane is flying well but is a little dull so the kids add buttons and glitter but then they don't understand why the plane isn't flying as well as it did. In Odds n' Endsville, they discover that there can be too much of a good thing, and sometimes keeping it simple is the best solution.

Sally thinks that the three sticks she has aren't enough to make anything. Cat takes them to a place where they can get more sticks. And along the way, they discover just how many things you can do with three sticks. When Nick drops the mailbag into his train set, his fingers are too big get it out. Cat shrinka-ma-doodles them so they're small enough to be in the train set. But when the Thinga-ma-jigger falls out of reach, they need the right sized tool to help them out.

The Surprising Bean - Nick keeps trying to surprise Sally, but he just can't do it! The Cat takes them to find a real surprise in the Skippylarito Fields! Once there, Cat shows them a special bean - that suddenly moves! With a shrunken Thingamajigger, they go inside the bean and meet the moth larvae that lives there. They learn that it's really the moth that causes the bean to move. What a neat surprise indeed! Hear Here - The kids hear chirping but can't find where it's coming from. If only they had better ears. Ears like an elephant? Or maybe an owl or even a fox? Not a problem when the Cat's around! He takes them to meet these animals with amazing ears. Back home the kids used what they learned from their new friends to find the sound - a teeny tiny cricket! What other great sounds are around?

Sally thinks that the three sticks she has aren't enough to make anything. Cat takes them to a place where they can get more sticks. And along the way, they discover just how many things you can do with three sticks. When Nick drops the mailbag into his train set, his fingers are too big get it out. Cat shrinka-ma-doodles them so they're small enough to be in the train set. But when the Thinga-ma-jigger falls out of reach, they need the right sized tool to help them out.

When Sally accidentally destroys Nick's model of a mountain, the Cat takes them to meet Sara of Serendip, an inventor who helps them understand that you can make new discoveries through your mistakes. Nick discovers that Sally can't hear him when he yells from his bedroom window if their bedroom windows are closed. The Cat takes them to the Soundy Sea and they learn that sound travels in waves.

When Sally accidentally destroys Nick's model of a mountain, the Cat takes them to meet Sara of Serendip, an inventor who helps them understand that you can make new discoveries through your mistakes. Nick discovers that Sally can't hear him when he yells from his bedroom window if their bedroom windows are closed. The Cat takes them to the Soundy Sea and they learn that sound travels in waves.

The kids want to get a trunk up into the treehouse and go to the Machine-a-Ma-Zoo, where they're introduced to simple machines, and learn about the pulley. Sally loses her "slidiness" and when they go to the Frictionarium, they find out that there's a force called friction that can stop a person from sliding.

The kids want to get a trunk up into the treehouse and go to the Machine-a-Ma-Zoo, where they're introduced to simple machines, and learn about the pulley. Sally loses her "slidiness" and when they go to the Frictionarium, they find out that there's a force called friction that can stop a person from sliding.

Sally is convinced that a tall thin glass of juice holds more than a short wide glass so Cat takes them to Point O'View where they learn that getting evidence can cause them to change their mind. Nick and Sally wonder if they can walk on a cloud, and the Cat takes them to Mount Knowmore. As they climb, they discover that materials have different properties that allow them to be solid or fluid. And when they get to the top, they have gathered enough evidence through experience of walking through the clouds to answer the original question.

Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet. Cat takes them to see the Song Flower Sisters, who need just the right mixture of water and soil before they'll sing. Through multiple trials, Nick and Sally learn the importance of recording procedures and of perseverance as they find the right mixture for the flowers. Sally wants to make a mobile balance with four identical rubber ducks, but she's only got three. Cat takes them to The Bazaar at Balance Point, where the Things throw everything off balance. Sally discovers that weight and size are not always equivalent and that there are many different ways to balance objects.

Sally is convinced that a tall thin glass of juice holds more than a short wide glass so Cat takes them to Point O'View where they learn that getting evidence can cause them to change their mind. Nick and Sally wonder if they can walk on a cloud, and the Cat takes them to Mount Knowmore. As they climb, they discover that materials have different properties that allow them to be solid or fluid. And when they get to the top, they have gathered enough evidence through experience of walking through the clouds to answer the original question.

Nick and Sally are having a sleepover in the treehouse and Nick is startled by a shadow. The Cat explains that shadows aren't scary if you know what they are. He takes them to Silhouette Valley where they learn that shadows are made by blocking light and the position of the light can make shadows grow or shrink. Nick unintentionally loses Sally's bouncy ball. They go to Ballaballo and learn how different balls are made of different materials, which help them move in different ways.

Bounce - Nick and Sally are wondering why their ball is so bouncy. Fish tells them it's because it's made from rubber, and rubber comes from trees. Cat doesn't believe him so it's time to ask the expert, Dr. Twiggles! It turns out Fish is right! And Dr. Twiggles shows them all just how rubber is made, and all the wonderful things rubber can make! Timmy Tippy Toe - Nick and Sally are playing on a climbing frame but just can't manage to get to the top. Cat tries to show them how it's done but he can't do it either! Time to go see Timmy Tippy Toe, the Klipspringer who is an expert climber! Timmy teaches them to use their hands and their feet, and now they can reach the top of their own "mountain"!

Nick and Sally are having a sleepover in the treehouse and Nick is startled by a shadow. The Cat explains that shadows aren't scary if you know what they are. He takes them to Silhouette Valley where they learn that shadows are made by blocking light and the position of the light can make shadows grow or shrink. Nick unintentionally loses Sally's bouncy ball. They go to Ballaballo and learn how different balls are made of different materials, which help them move in different ways.

When Nick's magic trick causes his toy car to disappear under the porch, the Cat takes them to Arcade Island to win a Grasper-ma-clasper. Instead, they find out the magic of bumping things around. The kids want to make a great snowman but the clothes they've chosen are frozen in the ice and snow. Cat takes them to Coldsnap Island, where they discover that when they warm up ice or snow it becomes water.

Sally thinks that the three sticks she has aren't enough to make anything. Cat takes them to a place where they can get more sticks. And along the way, they discover just how many things you can do with three sticks. When Nick drops the mailbag into his train set, his fingers are too big get it out. Cat shrinka-ma-doodles them so they're small enough to be in the train set. But when the Thinga-ma-jigger falls out of reach, they need the right sized tool to help them out.

When Nick's magic trick causes his toy car to disappear under the porch, the Cat takes them to Arcade Island to win a Grasper-ma-clasper. Instead, they find out the magic of bumping things around. The kids want to make a great snowman but the clothes they've chosen are frozen in the ice and snow. Cat takes them to Coldsnap Island, where they discover that when they warm up ice or snow it becomes water.

Nick and Sally need a strong piece of string to pull their train, but it breaks, and they don't have anything stronger in their craft box. The Cat takes them away, but the Thinga-ma-jigger malfunctions and they have to make an unscheduled landing. It turns out they've shrunken and are inside the craft box, where they discover that they can create a stronger string by braiding several strands together. Nick and Sally are in the treehouse making funny faces at themselves in the mirror when they notice a bird flying back and forth into the tree branches. They discover that the bird is building a nest and they want to get a closer look but can't do it without disturbing the birds. The Cat takes them to a mirror world where they learn how reflections work and they concoct a kind of periscope that allows them to watch the bird without disturbing it.

No Night Today - Nick and Sally want to keep playing, but it's getting dark. Why does nighttime have to come? The Cat knows someone who can answer that question - Astronaut Audrey! With a trip to her International Space Station and a large model of the solar system, the kids learn that it's the earth's spinning near the sun that makes it night or day. Fun in the Sun - Phew it's hot! Too hot to play outside. Not according to The Cat! His friend Hilda the Hippo knows all about having fun in the sun. A visit to Muddymoo River teaches them that hippos make their very own sunscreen to protect them from the hot sun. Now that they all have their sunscreen on, it's time for some fun in the sun!

Nick and Sally need a strong piece of string to pull their train, but it breaks, and they don't have anything stronger in their craft box. The Cat takes them away, but the Thinga-ma-jigger malfunctions and they have to make an unscheduled landing. It turns out they've shrunken and are inside the craft box, where they discover that they can create a stronger string by braiding several strands together. Nick and Sally are in the treehouse making funny faces at themselves in the mirror when they notice a bird flying back and forth into the tree branches. They discover that the bird is building a nest and they want to get a closer look but can't do it without disturbing the birds. The Cat takes them to a mirror world where they learn how reflections work and they concoct a kind of periscope that allows them to watch the bird without disturbing it.

Nick and Sally can't agree on the "right" way to sort their toys. The Cat takes them to Toborrowland to help him return a bunch of things. As they confront different obstacles, they have to come up with different ways of sorting Cat's things, and they realize there are lots of ways to sort. T The kids are making bubbles and want to save one for Sally's mom. But they always pop. In Odds-n-Endsville they find out that landing bubbles on some surfaces helps the bubbles last longer.

Sally is convinced that a tall thin glass of juice holds more than a short wide glass so Cat takes them to Point O'View where they learn that getting evidence can cause them to change their mind. Nick and Sally wonder if they can walk on a cloud, and the Cat takes them to Mount Knowmore. As they climb, they discover that materials have different properties that allow them to be solid or fluid. And when they get to the top, they have gathered enough evidence through experience of walking through the clouds to answer the original question.

Nick and Sally can't agree on the "right" way to sort their toys. The Cat takes them to Toborrowland to help him return a bunch of things. As they confront different obstacles, they have to come up with different ways of sorting Cat's things, and they realize there are lots of ways to sort. T The kids are making bubbles and want to save one for Sally's mom. But they always pop. In Odds-n-Endsville they find out that landing bubbles on some surfaces helps the bubbles last longer.

Nick and Sally are having a sleepover in the treehouse and Nick is startled by a shadow. The Cat explains that shadows aren't scary if you know what they are. He takes them to Silhouette Valley where they learn that shadows are made by blocking light and the position of the light can make shadows grow or shrink. Nick unintentionally loses Sally's bouncy ball. They go to Ballaballo and learn how different balls are made of different materials, which help them move in different ways.

Nick and Sally are having a sleepover in the treehouse and Nick is startled by a shadow. The Cat explains that shadows aren't scary if you know what they are. He takes them to Silhouette Valley where they learn that shadows are made by blocking light and the position of the light can make shadows grow or shrink. Nick unintentionally loses Sally's bouncy ball. They go to Ballaballo and learn how different balls are made of different materials, which help them move in different ways.

Nick and Sally need a strong piece of string to pull their train, but it breaks, and they don't have anything stronger in their craft box. The Cat takes them away, but the Thinga-ma-jigger malfunctions and they have to make an unscheduled landing. It turns out they've shrunken and are inside the craft box, where they discover that they can create a stronger string by braiding several strands together. Nick and Sally are in the treehouse making funny faces at themselves in the mirror when they notice a bird flying back and forth into the tree branches. They discover that the bird is building a nest and they want to get a closer look but can't do it without disturbing the birds. The Cat takes them to a mirror world where they learn how reflections work and they concoct a kind of periscope that allows them to watch the bird without disturbing it.

Nick and Sally need a strong piece of string to pull their train, but it breaks, and they don't have anything stronger in their craft box. The Cat takes them away, but the Thinga-ma-jigger malfunctions and they have to make an unscheduled landing. It turns out they've shrunken and are inside the craft box, where they discover that they can create a stronger string by braiding several strands together. Nick and Sally are in the treehouse making funny faces at themselves in the mirror when they notice a bird flying back and forth into the tree branches. They discover that the bird is building a nest and they want to get a closer look but can't do it without disturbing the birds. The Cat takes them to a mirror world where they learn how reflections work and they concoct a kind of periscope that allows them to watch the bird without disturbing it.

Sally invents a secret treehouse handshake, but Nick can't remember the sequence. The Cat takes them to Over-and-Overton, where they figure out how to get through a series of obstacles by recognizing patterns. Nick and Sally don't understand why one toy car goes faster than another. The Cat says he needs their help to move some big pictures and along the way, they find out about how air is matter (takes up space and has mass) and can push on objects.

The kids need to move a big rock in their backyard so they can plant an apple tree. The Cat takes them to Machine-a-Ma-Zoo, where they learn how a lever can solve their problem. Sally is playing a song on an instrument made up of different things in the Treehouse but she can't find the right note for her song. In Gongolia, they find out that bigger things make lower sounds and smaller things make higher sounds.

Sally invents a secret treehouse handshake, but Nick can't remember the sequence. The Cat takes them to Over-and-Overton, where they figure out how to get through a series of obstacles by recognizing patterns. Nick and Sally don't understand why one toy car goes faster than another. The Cat says he needs their help to move some big pictures and along the way, they find out about how air is matter (takes up space and has mass) and can push on objects.

Nick gets some new train cars for his train set and wants to add them to his train, but the magnets won't connect. The Cat takes them to the Magnetic Fields where they learn how magnets work. Nick is trying to learn how to ride his bike so the Cat takes him and Sally to Balence Point, where he discovers the things to keep in mind when trying to maintain your balance.

When Nick's magic trick causes his toy car to disappear under the porch, the Cat takes them to Arcade Island to win a Grasper-ma-clasper. Instead, they find out the magic of bumping things around. The kids want to make a great snowman but the clothes they've chosen are frozen in the ice and snow. Cat takes them to Coldsnap Island, where they discover that when they warm up ice or snow it becomes water.

Nick gets some new train cars for his train set and wants to add them to his train, but the magnets won't connect. The Cat takes them to the Magnetic Fields where they learn how magnets work. Nick is trying to learn how to ride his bike so the Cat takes him and Sally to Balence Point, where he discovers the things to keep in mind when trying to maintain your balance.

Sally and Nick have wrapped Father's Day gifts, but when they get mixed up the kids can't tell which is which. Cat takes them to Zippy Zaroo's Cookie Factory where each cookie has a toy inside. When the shrunken Thingamajigger ends up inside a cookie, they have to use their knowledge about the properties of matter and deductive reasoning to identify which cookie it's in. Nick and Sally are disappointed when their toy's battery runs out of power. The Cat takes them to Lots-o-Lakes Land to see the flight of the Dipsydoodlers. But along the way, the Thinga-ma-jigger runs out of Go-Go-Go juice and they have to find alternative forms of energy to make it go.

Meet the Beetles - Nick and Sally must protect their cookie jar from cookie snatchers! But how? Well by meeting three of the Cat's beetle friends, that's how! Stan the Giant Stag beetle shows them how to look scary, while Cliff the Click beetle teaches them to make a noise them jump! And Bobbi the Bombardier beetle has a stinky surprise for those that try to sneak up on her. Now Nick and Sally can keep their cookies safe! Tongue Tied - Mmm, there's nothing better than a blueberry popsicle, even though it makes your tongue blue! Speaking of tongues, the Cat has some friends with marvelous tongues! The kids meet Treetop Tom and see how his tough tongue can pick food off of thorny branches. Then Snifty the boa snake shows them how she uses her tongue to smell. And by using Cat's "Not-So-Fast-Glasses", they can see Colin the chameleon's lightening fast tongue get him his food. Nick and Sally realize that their tongues are pretty useful too.. for asking for another popsicle!

Sally and Nick have wrapped Father's Day gifts, but when they get mixed up the kids can't tell which is which. Cat takes them to Zippy Zaroo's Cookie Factory where each cookie has a toy inside. When the shrunken Thingamajigger ends up inside a cookie, they have to use their knowledge about the properties of matter and deductive reasoning to identify which cookie it's in. Nick and Sally are disappointed when their toy's battery runs out of power. The Cat takes them to Lots-o-Lakes Land to see the flight of the Dipsydoodlers. But along the way, the Thinga-ma-jigger runs out of Go-Go-Go juice and they have to find alternative forms of energy to make it go.

Sally wants to fly her kite but can't seem to work out the timing to get the wind right - after all, you can't see wind. The Cat takes them to Windnasium where they learn to "see" wind in all kinds of ways. When Nick's favorite flyer gets stuck in the tree, Nick wishes he could jump really high and retrieve it, but gravity holds him down. Cat takes them to Gravity Drop where they discover what happens when there's more or less gravity. And Nick figures out how to use gravity to get his plane back.

Nick and Sally need a strong piece of string to pull their train, but it breaks, and they don't have anything stronger in their craft box. The Cat takes them away, but the Thinga-ma-jigger malfunctions and they have to make an unscheduled landing. It turns out they've shrunken and are inside the craft box, where they discover that they can create a stronger string by braiding several strands together. Nick and Sally are in the treehouse making funny faces at themselves in the mirror when they notice a bird flying back and forth into the tree branches. They discover that the bird is building a nest and they want to get a closer look but can't do it without disturbing the birds. The Cat takes them to a mirror world where they learn how reflections work and they concoct a kind of periscope that allows them to watch the bird without disturbing it.

Sally wants to fly her kite but can't seem to work out the timing to get the wind right - after all, you can't see wind. The Cat takes them to Windnasium where they learn to "see" wind in all kinds of ways. When Nick's favorite flyer gets stuck in the tree, Nick wishes he could jump really high and retrieve it, but gravity holds him down. Cat takes them to Gravity Drop where they discover what happens when there's more or less gravity. And Nick figures out how to use gravity to get his plane back.

Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet. Cat takes them to see the Song Flower Sisters, who need just the right mixture of water and soil before they'll sing. Through multiple trials, Nick and Sally learn the importance of recording procedures and of perseverance as they find the right mixture for the flowers. Sally wants to make a mobile balance with four identical rubber ducks, but she's only got three. Cat takes them to The Bazaar at Balance Point, where the Things throw everything off balance. Sally discovers that weight and size are not always equivalent and that there are many different ways to balance objects.

Manatees and Mermaids - Sally and Nick are pretending to swim, but why not go for a real swim asks the Cat! Off to the Glippydrippy Gulf to meet Matilda the Manatee and her son Marlin. Matilda and Marlon teach their guests how to swim slowly and gracefully. Until they hear the sound of a boat motor! Those can be dangerous for manatees, but luckily the Cat, Nick and Sally help their new friends to stay safe. And when they get back home, Nick and Sally will be sure to tell everyone to "Slow down for manatees!" The Last Chocolate - Only two chocolates left in the whole box, what a great present for Nick and Sally's Moms. That is until The Cat excitedly eats them! Oh no! How are they going to find more chocolate to give to their moms? Why a trip to visit Princess Lottachoca in the Cocoalicious Forest will help them! There, the Princess teaches Nick and Sally the chocolate-making song and they help to pick the beans, roast them, and to heat the juice and add sugar. And then, pouring the hot liquid into moulds of any shape. Now that the chocolate has cooled, it's time to go home and surprise their moms! Educational Objective: The process of how chocolate is made from the humble cocoa bean - by picking the beans, drying them, roasting them and then crushing them to get the juice, then adding sugar while you heat it, pour it into a mould and cool it.

Nick and Sally are trying to build a sandcastle but the sand is either too dry or too wet. Cat takes them to see the Song Flower Sisters, who need just the right mixture of water and soil before they'll sing. Through multiple trials, Nick and Sally learn the importance of recording procedures and of perseverance as they find the right mixture for the flowers. Sally wants to make a mobile balance with four identical rubber ducks, but she's only got three. Cat takes them to The Bazaar at Balance Point, where the Things throw everything off balance. Sally discovers that weight and size are not always equivalent and that there are many different ways to balance objects.

Nick gets some new train cars for his train set and wants to add them to his train, but the magnets won't connect. The Cat takes them to the Magnetic Fields where they learn how magnets work. Nick is trying to learn how to ride his bike so the Cat takes him and Sally to Balence Point, where he discovers the things to keep in mind when trying to maintain your balance.

Nick gets some new train cars for his train set and wants to add them to his train, but the magnets won't connect. The Cat takes them to the Magnetic Fields where they learn how magnets work. Nick is trying to learn how to ride his bike so the Cat takes him and Sally to Balence Point, where he discovers the things to keep in mind when trying to maintain your balance.

Sally wants to fly her kite but can't seem to work out the timing to get the wind right - after all, you can't see wind. The Cat takes them to Windnasium where they learn to "see" wind in all kinds of ways. When Nick's favorite flyer gets stuck in the tree, Nick wishes he could jump really high and retrieve it, but gravity holds him down. Cat takes them to Gravity Drop where they discover what happens when there's more or less gravity. And Nick figures out how to use gravity to get his plane back.