Simon Watterman, a space archaeologist, discovers the "Munchies" in a cave in Peru. Cecil Watterman, Simon's evil twin brother and snack food entrepreneur, kidnaps the creature. What Cecil does not know is that the creature, when chopped up, regenerates into many new creatures and are they mean!

Scudder is a detective with the Sheriff's Department who is forced to shoot a violent suspect during a narcotics raid. The ensuing psychological aftermath of this shooting worsens his drinking problem and this alcoholism causes him to lose his job, as well as his marriage.