Stephanie comes to LazyTown and meets a zany mix of townspeople, including the world's laziest super-villain, Robbie Rotten. Fortunately for Stephanie, LazyTown is under the watchful eye of Sportacus, an athletic, super-fit, hero, who runs, jumps, flips and flies to the rescue - he always manages to save the day and to help the kids of LazyTown foil Robbie's latest lazy schemes.
Robbie pretends to be a famous rock star so he can convince the LazyTown kids to be lazy, and drive Sportacus out of LazyTown forever.
Robbie uses a machine that turns Sportacus into a 10-year-old boy. Now Robbie can raise him the rotten way! Will Stephanie find a way to change him back again?
After the kids work hard to clean up LazyTown, Robbie creates a giant trash cannon to mess it up again. Can Sportacus save the town from being buried in trash.
Robbie pretends to be the Mayor so he can change all LazyTown's laws! Can Sportacus revolt against Rotten rule?
Trixie convinces the kids to follow her into an old, creaky castle that is haunted by Robbie Rotten!
It's snowing in LazyTown, and all the kids want to have fun outside. Robbie disguises himself as a snow monster to frighten the kid back indoors.
The kids decide to put on a circus. But before long, Ringmaster Robbie tries to shoot Sportacus out of LazyTown in a cannon.
Robbie poses as a teacher at the LazyTown school so the kids will stop learning new things. The during chemistry class, Robbie causes a chemical reaction that might blow up the whole school. Can Sportacus stop the reaction and save the day?
Stephanie builds a Play Park for her friends, but they're more interested in Robbie's dangerous thrill ride. When the Rotten ride goes berserk, Stephanie needs her friends' help to save them.
Sportacus shows the kids how to use an Energy Book to record how much Sports Candy they eat and how much exercise they do. Robbie hears about this book and offers them stamps for being lazy.
It's Sportacus' birthday! But Robbie makes a wall that divides LazyTown in half, making everyone argue and not want to play together. Can the kids snap out of it?
Pixel thinks that technology is the answer for everything, so Robbie "wires" the whole town and everything goes haywire.
Robbie's finds a magical lamp that grants him three wishes--all to make LazyTown lazy again! But his wishes backfire, and Robbie's genie turns out to be more of a problem for him than for the town!
Pixel invents a device that allows kids to enter their favorite fairy tales. But when Robbie follows them and plays Big Bad Wolf, the kids get stuck inside the tale! Can Sportacus be the hero of the fairy tale and save them?
Robbie enters the LazyTown car race and sabotages all the kids' cars. So, they pool their remaining parts into one super car.
Stephanie is invited to join a famous dance school, but it is far away. Is the offer real? Or is it a Rotten plot to get rid of her and Sportacus? It's up to Stephanie to discover the truth before it's too late.
