Zombies have taken over the world, and a ragtag band of soldiers led by Sarge Crockett roams the countryside trying to scavenge what they can. Constantly on guard against flesh-eaters, the group is intrigued when they hear of a safe haven on Plum Island. But when they arrive, they find the supposed paradise torn apart by a family feud between the O'Flynns, who want to exterminate all zombies, and the Muldoons, who coexist peacefully with their undead relatives.
