The now famous Burt Gummer returns to his hometown of Perfection, Nevada for the first time in years, but the deadliest Graboid evolution yet forces him to save the town he swore to protect.

Mayor Stiles' daughter Donna is killed the night after a lousy date with the shy Mitch. Of course this makes him the main suspect. When Mitch gets free on bail, Styles hires ex-cop Mace to follow him.