Stephanie arrives in LazyTown and meets there a zany group of adults and children. Among them is the laziest villain in the world - Robbie Rotten. Fortunately for Stephanie, in LazyTown, besides this group, lives the superhero Sportacus, who, thanks to his fantastic abilities, can jump, hop, perform crazy flips in the air, not forgetting to help Stephanie in her difficult choice between a healthy lifestyle and simpler, but far less healthy alternatives.