When a street drug turns junkies into an army of zombies, a man named Hunter finds himself with nothing but a beat-up car and a trunk full of guns and booze, until he stumbles across a small band of survivors.

The story follows Dusty, a yoga instructor from Colorado, who is on a desperate rescue mission to save her crazy brother Derek, a conspiracy theorist who is convinced Osama bin Laden is still alive, despite having been buried at s...