It all began when a scientist named Dr. Jahne tried to make a cure for cancer and accidentally made zombies instead. Pretty soon, the world wasn’t safe for anyone with brains.
Fortunately for Johnny, that meant he was pretty safe.
But when the apocalypse comes intruding on Johnny's quiet ranch, he gets his shotgun and pick-up truck and starts rounding up his buddies to put the zombies back in the ground where they belong. Will he save the world, or at least go out with a bang?