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.

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!

Digging The Deep - Nick and Sally are exploring how deep they can dig in the sandbox. The Cat arrives to whisk them away to the deepest place he knows - the bottom of the Swirly Whirly Ocean! They meet up with Aurilia the Angler fish who guides them to the very bottom of the ocean floor. Now that they've gone as deep as deep can be, it's off to find the next adventure!Puddle Puzzle - Nick and Sally are excited to jump in the giant puddle in their backyard - but it's gone! Where did it go? With the help of Cat's Seussian camera, they see that the puddle has turned into water vapour. Off they go to the Bluey Blue Sky to follow their puddle. They discover that the water vapour rises high into the sky, then cools off and falls as rain. They go back home and are delighted to see that their puddle is back.

Stripy Safari - Nick and Sally set off on a safari with The Cat in the Hat to find all kinds of stripes. Along the way, Sally and Nick discover that stripes mean different things to different animals - the stripes of Jake the coral snake tells other animals to stay away, and Zelda and Zoran's zebra stripes help them to identify each other. And best of all, Cat discovers that his stripes are just right for him!Wool - Nick wants to learn how to knit a scarf like Sally, but they've run out of wool! A visit to Finola's Farm is the perfect place to get more. The Cat, Nick and Sally have fun helping Finola get the wool from Feleecia the sheep and then turning it into yarn. Now Sally can teach Nick how to knit his own scarf!

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.

Hooray for Hair - Sally and Nick are getting their hair cut today; maybe they should try new hairstyles! A trip to meet three of Cat's friends (and some styling help from the Wig-o-lator) will help them decide! Should they have Yak hair? No, too hot! How about hair like a fur seal? Not quite, too short. A porcupine? No way! How will they ever get a hug from their moms with hair that spiky? They decide that the hair they have is what's perfect for them!Ice is Nice - Nick and Sally want some nice cold lemonade, but there's no more ice cubes in Sally's fridge! A trip to Freeze-your-knees Snowland will fix that! They meet Cat's friend Polly the polar bear who introduces Sally and Nick to all the different kinds of ice that make up her home. After trying many types of ice, they find the kind that will be perfect for their lemonade!

A Sweet Deal - Sally and Nick are having a hard time getting customers to come to their "cafe". What can they do? The Cat takes them to meet Eddy the honeyguide bird. Eddy shows them how he guides humans to bees' nests by making noise and putting on a show. Back at home, Sally and Nick follow Eddy's example and proudly serve their first customer!King of Swing - Swinging from a rope isn't so easy for Sally and Nick. Good thing the Cat knows the king of swing, Charlie the chimpanzee! In the Leafylafoo Rainforest, Charlie teaches them how to use their hands and feet to swing as they help him search for bananas, his favourite food! Back at home, Sally and Nick mimic Charlie and swing across the backyard to where Cat has a surprise snack waiting for them - bananas!

Minnie Meerkat - Sally and Nick are planning to camp out in the backyard, but there are some scary noises out there! Not to worry, The Cat's friend Minnie Meerkat can teach them all about camping safe. Off to Peekaboo Plains where a group of meerkats show them how they make their camp safe every night. Now Sally and Nick know what to do to feel safe in the backyard. And it doesn't hurt to have the best lookout ever - The Cat in the Hat!Leaves - Nick and Sally are going to make a leaf collage of Cat, but the leaves they have aren't the right shape, they need different ones. It's off to Kaloo-Kalee for some leaf collecting! There, they learn that leaves help trees make food, and that's why it's best not to pick the leaves from the branches. They collect fallen leaves from three different trees with very different leaves. Now they have everything they need to make their picture of Cat, and even one for Fish!

Super Cleaner Upper: Nick and Sally are cleaning up the backyard when they come across a yucky apple core. Who's going to pick it up? The Cat in the Hat takes them to meet the best cleaner-upper there is, Sandy the Sand Hopper! Sandy teaches them the difference between natural "garbage" and man-made trash, and how some animals use the natural garbage as food. Back at home, they put the trash in a garbage bag, and the apple core in the garden for Wriggles the worm to enjoy!Itty Bitty Water - Nick and Sally are about to dump out the water in their kiddie pool when The Cat stops them - water is too precious to waste even a drop! Off they go to the Drippety Dry Desert to meet three creatures who are experts at conserving water. Back at home, they think of other ways to use the water in the pool instead of just dumping it out - like giving Cat a bath!

When I Grow Up - Sally and Nick are trying to guess what they'll be when they grow up when the Cat drops in for a visit. Cat is sure Nick and Sally will never guess what his friend Puggle will be when she grows up. When they see her, they start guessing right away! A frog? A duck? No, a beaver! They discover that, while Puggle may have some similarities to other creatures, she will grow up to be a duck billed platypus!Doing It Differently - Nick and Sally can't seem to find Harvey the guinea pig. They find the Cat in the Hat instead! Cat suggests that Sally and Nick might find Harvey by meeting three friends who always do things differently - like a bird that runs instead of flies, or a cat that swims, or a fish that walks on the mud! Nick and Sally are sure to find Harvey now - by doing it differently!

Amazing Eyes - Sally and Nick are trying to guess which game Harvey the guinea pig might like to play with them. The Cat takes them to meet his friend Katie the Cavy, a wild guinea pig. But when they try to ask her, she playfully runs off! With the help of three different animals with very different ways of seeing, they finally find Katie and discover a guinea pig's favourite game - hide and seek!Water Walkers - Nick and Sally are waiting for Mom to come back so they can play in the pool. Cat suggests that playing on water is even more fun! But how? A trip to Splishy Splashy Pond to meet Walker the water strider will show them. Walker shows how he's able to stay on top of the water with the help of air bubbles as he journeys to the other side of the pond. Back at home, Sally and Nick are ready travel to the other side of the pool!