In the city where Leon lives, superheroes-and supervillains-are just part of everyday life. So how does an ordinary kid like Leon, who has no superpowers himself, become the hero he wants to be?

Leon gets his chance when a new supervillain at school turns his classmates into mind-controlled zombies! His best bud, Carlos, is by his side, but his frenemy, Clementine, is a big drag-until Leon finds out a super secret that changes everything!