Caillou and the family are at Grandma & Grandpa's for an evening corn roast. Everyone marvels at the night sky full of stars--which gives Grandpa the perfect opportunity to bring out his telescope & introduce Caillou to the constellations, planets and the moon.
The house wakes up late, and that means it's a mad rush to get Mommy off to work. Later, when Caillou goes for a walk with Daddy he meets all kinds of people doing all kinds of jobs--and he gets to try being a mailman, a sanitation engineer and a policeman for himself. The best part? When he makes the lights and siren goes off in the police car!
It's time for Gilbert's annual visit to the vet. Gilbert instinctively knows where he's heading. He hates riding in the car, so Caillou does his best to comfort him--with near-disastrous results! Things only get worse when Gilbert confronts a dog in the waiting room. The vet suggests that Caillou help comfort Gilbert when he gets his shot. That wasn't so bad, was it? MEOW!
When Caillou plays astronauts with Leo he upsets Rosie. Meanwhile, Grandpa discovers a new planetarium is opening and there's a prize for the best space costume. Caillou is thrilled when the winner turns out to be...a surprise!
Caillou is helping Mom clean out the attic. When they come across an old chest, they open it and discover it's full of unexpected things that may not be worth much money, but are treasures none the less.
The family goes away for a weekend of camping in the woods. Caillou is scared when the fish in the lake tickle him. He climbs a mountain with Daddy and really, really hopes he will get to see a moose before it is time to go home.
Caillou has dinner at Sarah's house and discovers new foods and a new way to eat them. He has so much fun learning how to eat with chopsticks he insists on trying them with dessert: Jell-O!
Caillou and Mom meet a fascinating woman in the park. Caillou is quick to approach the woman because she has a friendly dog. He notices it isn't on a leash but in a special harness instead. After several questions she explains she is blind and her dog helps her do many things. Caillou and Mom end up visiting a school where the dogs are taught their special skills.
It's hot and steamy and Mom won't let Caillou go to the public pool since they've been every day this week! When Caillou refuses to put on sunscreen lotion and Rosie won't nap, Mom quickly realizes that the hot weather is making everyone grumpy. She and Caillou come up with the perfect solution: they connect the lawn sprinkler for some good-time backyard fun--which certainly doesn't need a lot of sophisticated equipment.
Caillou, Dad and Rosie are in the car on their way home. Caillou and Rosie are in the back seat arguing and Dad is losing patience with them. When the car breaks down they have to pull over. Caillou comforts Rosie who becomes afraid when smoke comes out of the engine. Caillou is overjoyed when the tow truck arrives. Everyone rides to the garage and Caillou is in charge of holding Rosie's hand and explaining all the scary sounds.
When Dad and Caillou find a scruffy dog that appears to be lost they bring it home. The whole family pitches in and tries to find the owner by posting signs around the neighborhood. But when the owner arrives, Caillou doesn't want to let the dog go. (Though Gilbert is pretty pleased).
Caillou and Dad go shopping for a Christmas tree. Amidst the frenzy of holiday shopping they get jostled and pushed every which way. And by the time they get to the tree vendor, all the good trees are gone. Caillou and Dad have a problem: they promised Mom and Rosie they'd get a tree... Together they cook up a plan: They will decorate a tree in their own back yard!
Mom, an avid skier, takes Caillou downhill skiing while Dad and Rosie sit in the cozy chalet and watch. At first Caillou is frightened by the ski lift, but with Mom's help, he makes it down the hill just fine and has lots of fun. Afterwards, they all get together for tobogganing and a well-deserved hot chocolate before heading out to the hills again.
Caillou is very excited when the family takes a trip across country by train. After the initial thrill fades and they are settled into their compartment he feels a bit confined in the small quarters. Dad takes Caillou to explore the train--there's so much to see and do. But when it's time to sleep, Caillou wonders where his bed is: it's a foldout bunk bed!
Caillou finds an old toy sailing boat Grandpa used to have when he was a kid. It's broken and dusty and Grandpa is about to throw it out, but Grandma says he should restore it. Caillou helps him repair it and paint it, and together they take it to the park to sail it.
Caillou visits a farm and spends a day helping the farmer. He rides on a tractor and milks the cows. When a chicken escapes he finds her and to his surprise he learns where eggs come from!
Caillou, Dad and Rosie take Mom out for Sunday brunch to celebrate a big event. The meal is at a fancy restaurant and Dad explains to Caillou and Rosie that they have to be on their best behavior. Caillou even wears a tie for the occasion! All goes well until Rosie escapes under the buffet table.
Gilbert gets caught up a tree, and to Caillou's delight a fire truck full of firefighters has to be called in to rescue him. Dad happens to know one of the firefighters and he and Caillou are invited to ride back to the fire station for a grand tour.
Caillou and Rosie are spending the night at Grandpa and Grandma’s. Caillou doesn’t want to share a room with his sister. But Grandpa surprises them with bunk beds. Caillou is so excited that he has a hard time falling asleep. The room, from high up looks very different and a bit scary. Teddy falls, and Caillou has to come down the ladder to get him back. The top of the ladder looks very tall and far away. When Grandpa and Grandma open the door in the morning, Rosie, Caillou and Teddy are snuggled up together on the bottom bunk.
Dad drives Caillou to Grandma's for the day. When Dad accidentally leaves with Caillou's backpack full of toys, Caillou is upset and decides that there is nothing to do. Caillou sulks while helping grandma in the garden, until Grandma shows him how he doesn't need his toys to have fun. Soon Caillou is spending the day making wonderful prints with a potato!
An old lot becomes a place of great interest as a house is slowly erected on it. Caillou loves the tractors, diggers and builders. He watches regularly to see the development until one day he discovers that not only is there a new house, but it looks like there might be a new little neighbor. But it turns out there are two! Twins!
Caillou can’t wait until he is old enough to go to school. Since Sarah has no brother or sister, she invites Caillou to a little brother or sister day at school. The school is big and Caillou is a little afraid. But with Sarah’s help Caillou has a lot of fun, he even draws on the blackboard.
Caillou is cooking with mom. He is a bit too messy. Dad sends him to play outside, where he is having fun with Sarah pretending to cook. They bring to mom a bouquet of dandelions and a cake made with blocks. Mom sets them on her table.
When Caillou's kite-flying plans are defeated by rain, he creates a pirate ship in his living room. He and Rosie laugh as Gilbert chases the kite "fish" Caillou drags around the room. Dad pretends to be a pirate and play-wrestles on the ship. Lunchtime causes Caillou to think of an indoor picnic and even Gilbert enjoys the rainy-day arrangement.
Caillou and Sarah find a baby bird that fell from its nest. With Sarah’s help Caillou cares for it and protects it from a very interested Gilbert. He’s a bit frightened by the bird at first, but soon grows very attached to it. But soon the bird is ready to fly and Caillou has to let him go.
A winter storm with snow and freezing rain is heading in Caillou’s direction. While preparing dinner, the lights go out. Caillou doesn’t understand how lights turn off by themselves and is very afraid. Mom sets candles on the tables while Caillou and Dad get flashlights. Dad builds a fire in the fireplace and they pretend they’re camping. They even toast marshmallows! At bedtime everybody curls up by the fire in sleeping bags. Caillou wakes up to the sound of the TV. He realizes the power is back on. But everybody is comfy, so they all sleep in the living room anyway.
It’s time for Caillou’s first visit to the dentist. He thinks it sounds neat until Leo tells him he’s heard terrible things about the dentist. He tells Caillou some crazy stories he heard from his older cousin and now Caillou is not so sure he wants to go. But once he gets there, the dentist is actually really nice and shows him lots of neat stuff. He even gets a special treat!
Caillou is really looking forward to a special day with Dad, but Dad gets a bad cold and has to stay home. Caillou is pretty disappointed at first, but then with some help from Mom, Dr. Caillou looks after patient Dad. He brings him a snack, makes him a get-well card, entertains him and ends up having fun.
Dad and Caillou have fun making a jack-o-lantern together. Caillou’s about to throw out all the goop that was inside the pumpkin when Grandma tells him it’s the best part. He finds out what she means when they bake a pumpkin pie.
Caillou spends a day with Grandma and Rosie trying his hand at playing some music. At first what they get is a whole lot of noise, but with Grandma’s help he realizes it can be a lot more fun when they all play together.