Paper Chase - Sally and Nick are making paper airplanes, but have run out of paper! Luckily Cat's friend Dr. Twiggles can help them! Off to the Woody Wood Woods to see him. There, Dr. Twiggles shows them how to make new paper out of old paper - recycling! They watch how the old paper is shredded, then water and cleaner are added to make it into a thick, soupy mess! Then they put it through rollers that flatten it into large sheets of paper! Now Nick and Sally can make their airplanes, and the best part, they used recycled paper! A Polar Adventure - Nick and Sally have lost Teddy outside, they need to find him, bears don't like the snow! Well some bears do, proclaims the Cat. In Freeze-Your-Knees-Snowland, Cat's friend Polly the polar bear loves the snow! They meet Polly and her two bear cubs and learn how their thick fur keeps them warm and how their long claws keep them from slipping on the ice. When a storm blows in, Polly keeps everyone warm in her den. Polar bears really do like the cold! Back home, Sally finds Teddy buried under the snow, but he was nice and safe in his own little den!

Balancing Act - Sally and Nick are trying to walk across a beam in their backyard, but are having trouble staying on it! Can the Cat help? Why of course! His friend Zappa the snow leopard is an amazing balancer! He uses his big wide feet and his long tail to help him keep his balance. Nick and Sally don't have tails, but they see how Zappa moves carefully to keep his weight balanced, now they know what to do at home. Using broomsticks to help them stay balanced, Nick and Sally are able to cross the balance beam. And just in time to have some yummy bran berry muffins! Marvelous Marbles - The kids are playing with glass marbles, until one of them rolls away! It was Nick's "extra luck never miss marble", now what is he going to do? Cat will take them to a sandy beach that's full of marbles! But when they get there, all they see is sand. Cat's friend Sharky McGee explains that sand makes glass. He shows them how sand is turned into glass and all the wonderful things you can make with it. Including marbles!

Show Me the Honey - Sally and Nick have run out of honey! Luckily the Cat knows just where to go to get more. They visit Queen Priscilla Buzzoo who invites them to join in the bee dance to learn how to make honey. Migration Vacation - The purple martin swallow that lives in Sally's backyard has gone missing! The Cat, with the help of a variety of forest creatures, help Nick and Sally track down the bird, and learn how and why birds migrate.

I Love the Nightlife - Nick wants to stay awake all night. Good thing the Cat needs help finding his most favorite hat that he lost in the forest of Wagamaroo! The Cat takes Nick and Sally on a nocturnal adventure, along the way meeting a variety of animals who stay up all night! Oh Give Me a Home! - Nick has a super duper special shell and Sally wants one too! The Cat in the Hat takes them to a beachside adventure where they meet Tucker, a hermit crab who is also looking for a new shell because he's grown too big for his. An under the sea fashion show gives both Tucker and Sally super duper special shells!

Many Ants Make Light Work - Nick and Sally are trying to put up a tent in their backyard but it's not working! Nick is pulling when Sally is pushing and it's just making a giant heap! Good thing the Cat knows a million trillion friends who are experts at teamwork! He whisks the kids off to visit an ant colony where Nick and Sally learn that you can do anything when you work together! Nest Best Thing - Nick and Sally have found some bird eggs in their backyard, but their nest is destroyed. Where are they going to keep them? The Cat in the Hat brings them to an expert nest builder, Mrs. Robin, who shows the children how to build a nest especially for those robin eggs.

A Plan for Sand - Nick and Sally are playing in their sandbox, but there's not enough room for them to build their castles. The Cat arrives to take them to the biggest sandbox they'll ever see! In the desert, they meet Carmela the Camel who teaches them about how camels are adapted to live in the dry, sandy climate. Whale Music - Nick and Sally have made a song to sing to their moms, but they can't get the ending quite right. The Cat in the Hat takes them to meet the best singing teacher in the world, Humphrey the Humpback Whale! While bobbing in the ocean, Humphrey teaches the kids that whales communicate by singing, and that it's not how you sing that matters, but what you're saying in the song. The kids return home to delight their mothers with their song!

Flower Power - Sally's mom has a cold, so Sally wants to pick her some colorful flowers to make her feel better. The Cat in the Hat takes Nick and Sally to the forest of Flora-Fah-Zoom where they meet three different creatures that all depend on flowers to live. Sally decides to make her mother a picture of their adventure in Flora-Fah-Zoom instead of picking a flower that animals need in order to survive. Snowman's Land - Sally and Nick have just finished making a statue of the Cat in the Hat out of snow, but he's starting to melt! Good thing Cat knows where to take the melting snowcat: to the cold and snowy north! In the arctic, the kids skate on a frozen lake, make snow sculptures, and learn that water can freeze and melt when it's cold or warm outside. Because it's getting warmer back home, they leave their snowcat sculpture there so they can come back and visit him!

I Love the Nightlife - Nick wants to stay awake all night. Good thing the Cat needs help finding his most favorite hat that he lost in the forest of Wagamaroo! The Cat takes Nick and Sally on a nocturnal adventure, along the way meeting a variety of animals who stay up all night! Oh Give Me a Home! - Nick has a super duper special shell and Sally wants one too! The Cat in the Hat takes them to a beachside adventure where they meet Tucker, a hermit crab who is also looking for a new shell because he's grown too big for his. An under the sea fashion show gives both Tucker and Sally super duper special shells!

A Plan for Sand - Nick and Sally are playing in their sandbox, but there's not enough room for them to build their castles. The Cat arrives to take them to the biggest sandbox they'll ever see! In the desert, they meet Carmela the Camel who teaches them about how camels are adapted to live in the dry, sandy climate. Whale Music - Nick and Sally have made a song to sing to their moms, but they can't get the ending quite right. The Cat in the Hat takes them to meet the best singing teacher in the world, Humphrey the Humpback Whale! While bobbing in the ocean, Humphrey teaches the kids that whales communicate by singing, and that it's not how you sing that matters, but what you're saying in the song. The kids return home to delight their mothers with their song!

Aye Aye! - Nick and Sally are making Halloween masks, but they want to make them really scary. Cat takes them to meet Aiya, the Aye Aye, in the forest of Spookywoowoo. Aiya shows them, that even though he may look scary - his big ears, huge eyes and long fingers help him to find food. And now Nick and Sally know just how to make their masks scary! Trick or Treat - It's Halloween! The Cat in the Hat takes Sally and Nick trick or treating - his way! Around the world they go, meeting three new friends who teach them each of the tricks they do and share the treats that they like to eat. Back at home Nick and Sally are ready to go trick or treating, with plenty of new tricks to share!

Trick or Treat - It's Halloween! The Cat in the Hat takes Sally and Nick trick or treating - his way! Around the world they go, meeting three new friends who teach them each of the tricks they do and share the treats that they like to eat. Back at home Nick and Sally are ready to go trick or treating, with plenty of new tricks to share! King Cecil the Seahorse - Sally is off to fight the "dragon"! But Nick wants to go, he doesn't want to stay and watch the baby princess, he wants to go on an adventure. The Cat explains that babies can be part of the adventure. Why don't they go meet King Cecil the Seahorse, he takes all his babies wherever he goes! Nick and Sally discover that taking care of babies is much more fun than fighting dragons.

Dress Up Day - Nick and Sally are playing dress up, but oh no! Sally's princess dress has torn, and mom doesn't have any silk thread to fix it. Cat takes them to his good friend Mindy, the silk caterpillar. Mindy shows them how she makes silk. Sally uses the silk thread to fix her swirly twirly princess dress! Bathtime - Nick and Sally have been playing in the mud, and now they need to get clean! The Cat in the Hat knows some friends who have some very wonderful ways to bathe! In Bana Bana Savanah, they meet three different animals who all keep clean in very different ways. Even though it was fun to try bathing how the animals do, Sally and Nick decide that good old soap and water works best for them!

Trees Company - Sally and Nick are playing up in their treehouse when Nick's mom calls them for lunch. Nick wonders what it would be like to stay up in that tree all the time! The Cat in the Hat knows! Or at least he has friends that do. In Jimmer Jammer Jungle the kids learn how different animals spend their entire lives in trees. As neat as that is, there's one thing those trees don't have, and that's mom's home cooking! Now You See Me - Nick and Sally are playing hide and go seek, but Sally keeps getting found! The Cat takes the kids to meet the best hider ever, his friend Gecko! Through a game of hide and go seek in the jungle, the kids learn how Gecko not only hides, but how he runs and climbs. Now Sally knows how to camouflage herself so she won't be so easily found!

Dress Up Day - Nick and Sally are playing dress up, but oh no! Sally's princess dress has torn, and mom doesn't have any silk thread to fix it. Cat takes them to his good friend Mindy, the silk caterpillar. Mindy shows them how she makes silk. Sally uses the silk thread to fix her swirly twirly princess dress! Bathtime - Nick and Sally have been playing in the mud, and now they need to get clean! The Cat in the Hat knows some friends who have some very wonderful ways to bathe! In Bana Bana Savanah, they meet three different animals who all keep clean in very different ways. Even though it was fun to try bathing how the animals do, Sally and Nick decide that good old soap and water works best for them!

Trees Company - Sally and Nick are playing up in their treehouse when Nick's mom calls them for lunch. Nick wonders what it would be like to stay up in that tree all the time! The Cat in the Hat knows! Or at least he has friends that do. In Jimmer Jammer Jungle the kids learn how different animals spend their entire lives in trees. As neat as that is, there's one thing those trees don't have, and that's mom's home cooking! Now You See Me - Nick and Sally are playing hide and go seek, but Sally keeps getting found! The Cat takes the kids to meet the best hider ever, his friend Gecko! Through a game of hide and go seek in the jungle, the kids learn how Gecko not only hides, but how he runs and climbs. Now Sally knows how to camouflage herself so she won't be so easily found!

Rain Game - Sally wants to water the plants in her backyard, but it's hot and sunny outside. They need rain, and lots of it! Good thing the Cat in the Hat knows exactly where to go to get some: the rain forest! With the assistance of some toucans and the singing of howler monkeys, they explore each level of the rain forest, eventually reaching the top and the rain! No SSSweater is Better - Nick's favorite sweater is too small and he doesn't want to change it. The Cat in the Hat has a friend with the exact same problem! He brings them to meet Slyde the snake who shows Nick and Sally how he sheds his skin when it gets too small for him.

A Tale About Tails - Nick and Sally are playing "Tape the Tail on the Donkey" when they wish they had tails of their own! Well it just so happens that the Cat knows a lot about tails! He brings them to the Jungle of Wagga-Tag-Tail where they meet a number of animals with very different tails. When Nick and Sally get to test out all of these tails for themselves, they learn that different tails can do different things! Sticky Situation - Sally and Nick are playing the drums on overturned buckets when Nick breaks his drumstick! Luckily, the Cat knows someone who is a stick expert, his friend Betty Beaver! She finds Nick the perfect drumstick, but when her dam springs a leak, Nick, Sally and the Cat help her fix it, using Nick's new stick. He doesn't have a stick anymore, but Nick learns an even better way to drum: using a home-made beaver tail!

Night Lights - Nick and Sally are making shadow puppets with the Cat in the Hat, but the batteries in the flashlight have gone out! They jump into the Thingamajigger and shrink down to visit the fireflies that live in the backyard. There they learn that the fireflies communicate by flashing their lights. And when the fireflies provide the light the kids need, the shadow puppet show can continue! Go Snails Go! - Nick, Sally and the Cat have been invited along on a snail expedition! They jump into the Thingamajigger and shrink down to meet up with Lewis and Clark, the two snails leading the way! As they travel through the forest of Slippity-Goo, having fun sliding in their own shells, the kids learn about all the different ways snails use their shells.

Flight of the Penguin - Sally and Nick are pretending to fly in their backyard. Oh wouldn't it be great if they really could? The Cat in the Hat brings them to meet his good friend Percy the penguin. After a fun race with a penguin and a bird, the kids learn that not all birds fly, but that doesn't mean they aren't fast! Let's Go Fly a Kite - Sally, Nick and the Cat are trying to fly a kite, but there's not enough wind. The Cat in the Hat takes them to Huff-Puff-Maguff where there's so much wind, they lose their kite! They chase the kite, using the wind to help them. When they finally reach it, the breeze helps to cool them down!

You Should Be Dancing - Nick and Sally are planning to put on a show for their moms, but they can't finish their dance without falling down! The Cat in the Hat takes them to meet one of the best dancers in the world, Tango a bird of paradise! With a few costume changes and a little practice, Nick and Sally are finally able to show their moms their new dance! Batty for Bats - Sally and Nick are playing a game of blindfolded freeze tag but they can't seem to find each other! Luckily the Cat has a friend who is always able to find his way in the dark. He takes them to meet Zapita, a bat who teaches the kids about echolocation. Now that Nick and Sally know how to listen to find their way, freeze tag has become a lot more fun!

A Tale About Tails - Nick and Sally are playing "Tape the Tail on the Donkey" when they wish they had tails of their own! Well it just so happens that the Cat knows a lot about tails! He brings them to the Jungle of Wagga-Tag-Tail where they meet a number of animals with very different tails. When Nick and Sally get to test out all of these tails for themselves, they learn that different tails can do different things! Sticky Situation - Sally and Nick are playing the drums on overturned buckets when Nick breaks his drumstick! Luckily, the Cat knows someone who is a stick expert, his friend Betty Beaver! She finds Nick the perfect drumstick, but when her dam springs a leak, Nick, Sally and the Cat help her fix it, using Nick's new stick. He doesn't have a stick anymore, but Nick learns an even better way to drum: using a home-made beaver tail!

Flight of the Penguin - Sally and Nick are pretending to fly in their backyard. Oh wouldn't it be great if they really could? The Cat in the Hat brings them to meet his good friend Percy the penguin. After a fun race with a penguin and a bird, the kids learn that not all birds fly, but that doesn't mean they aren't fast! Let's Go Fly a Kite - Sally, Nick and the Cat are trying to fly a kite, but there's not enough wind. The Cat in the Hat takes them to Huff-Puff-Maguff where there's so much wind, they lose their kite! They chase the kite, using the wind to help them. When they finally reach it, the breeze helps to cool them down!

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!

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!

Jump! - Nick and Sally can't jump high enough to get their balloon that is stuck up in a tree. Good thing The Cat knows some of the best jumpers ever! Off they go to Jumpalaroo to learn how to jump from nature's masters: grasshoppers, a kangaroo, and even a flea! Slow Down for Sloths - Nick and Sally are trying to draw a picture of a butterfly but can't get close enough to see it. Cat takes them to meet Onslow the Sloth, who teaches the kids that when you slow down, the world comes to you. After lots of practice (and a race to see who's the slowest!), Nick and Sally are now able to get closer to the butterfly and finish their picture!

Chasing Rainbows - The kids are painting a picture of a rainbow but can't remember all the colors to use. Luckily for them, Cat takes them to Color-ga-lore to meet King Kaleidoscope, an expert on rainbows! A musical number teaches them the proper color order, and a silly spray of water leads them to discover how to make their very own rainbow! Follow the Prints - Nick and Sally are enjoying a backyard picnic when they discover their last strawberry has gone missing! Who could have taken it? Cat's friend Cluey Looey can help them! They are off to Muddyfeet Waterhole where they learn about how the differently shaped feet, paws, or hooves of various animals make differently shaped footprints. Back home, they follow the prints and discover their strawberry was taken by a squirrel! Luckily, the Cat has some more!

Incredible Journey - Nick and Sally are playing in their homemade Thingamajigger, when the Cat arrives to take them on a real adventure! Off they go to meet salmon Sam, who is returning to the pool where she hatched so she can lay her eggs. With the help of the Subber-e-blubber, they follow Samantha underwater, upriver on her incredible journey! Bamboozled - Sally needs to find a gift for her stuffed panda, Pammy. Who better to ask than a real panda? The Cat takes them to meet Zhu Zhu, a giant panda who helps the kids to discover all the wonderful things you can do with her favorite food, bamboo. Bamboo turns out to be a perfect gift for Pammy!

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!

Jump! - Nick and Sally can't jump high enough to get their balloon that is stuck up in a tree. Good thing The Cat knows some of the best jumpers ever! Off they go to Jumpalaroo to learn how to jump from nature's masters: grasshoppers, a kangaroo, and even a flea! Slow Down for Sloths - Nick and Sally are trying to draw a picture of a butterfly but can't get close enough to see it. Cat takes them to meet Onslow the Sloth, who teaches the kids that when you slow down, the world comes to you. After lots of practice (and a race to see who's the slowest!), Nick and Sally are now able to get closer to the butterfly and finish their picture!

Thump - Nick is trying to make his mother a surprise lunch, but she keeps coming into the kitchen! If only there was a way for him to know when she was coming. The Cat takes Nick and Sally to meet his friend Twitch the rabbit. Twitch and her bunnies teach Nick and Sally how to stop, look and listen for danger. Now Sally that can warn Nick when his mom is coming, they're able to surprise her with lunch! Squirreled Away - Nick can't remember where he put his yoyo. Cat offers to take the kids to meet his friend Bucky the squirrel who is good at both hiding and finding things! Nick and Sally learn how to use landmarks to help them remember where they put things. Back at home Nick, thinking like Bucky, is able to track down his yoyo!

Pick Your Friends - It's Valentine's Day and Nick and Sally disagree hotly on how to decorate the card they're making for the Cat. Does this mean they aren't really best friends? The Cat takes them to meet Sheldon, a tortoise who knows all about friendship. They learn that Sheldon's best friend is completely different from him and that being best friends doesn't mean you always have to agree. Finola's Farm - Nick and Sally are sittind down to breakfast but have run out of milk. The Cat arrives to take them to Finola's Farm to have breakfast with Finola. First they learn how to milk a cow, then they discover that cows' milk can be made into butter and cheese and best of all--ice cream!

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 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.

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 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 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 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.

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.