An idyllic island town is under attack by that most invasive of pests: zombies! Port Gamble is being overrun with braineaters, and the people seem powerless to stave them off. But wait, a rag tag band of rebels is trying to turn the tide and push the invading hordes of undead back.

At 34, struggling Seattle musician Sam finds himself broke, jobless and losing touch with the person he wants to become. When his girlfriend kicks him out, he's forced to crash with his aunt Sharon and is reluctantly enlisted to take her teenage son and his friend camping.