Tomy, the star of the football team and the most popular kid at school, turns 13 and wakes up to find he has become a zombie. That same day, Boby, who comes from a long line of zombies, expects to transform like the rest of his family but nothing happens. Soon the boys discover that a witch swapped them at birth. Now Tomy and Boby must adapt to their true identities, face unexpected challenges, and learn to accept who they really are.