Josh Rondell is 12 years old and known as the "living dead boy" due to his rampant love of all things zombie. As the head of the Zombie Hunters Club, he's obsessed with preparing for the zombocalypse. Though no one around him really believes that zombies will one day rise to devour the living, Josh is convinced it just might happen.
When zombies do shamble into his schoolyard, Josh finds himself the leader of the dwindling band of zombie hunters, and he is charged with protecting them all. Josh's baby brother, his closest friends, and the love of his young life try to survive as the undead take over their town. Trapped in his treehouse and surrounded by the dead, will Josh be able to save them all?