Following the events of The Sheriff and the Satellite Kid, Sheriff Hall and H-725 (using the official identity of Charlie Warren) still get no rest from the military: because the little alien has not yet grasped the meaning of keeping a low profile, they are constantly on the move, and H-725’s father has had to pick them out of a tight spot too many times already.Hall and Charlie eventually arrive at the city of Munroe, where petty crime, from vandalism to armed robberies, is running rampant, more so because the town currently has no sheriff. Charlie pushes Hall into staying in this place, and somewhat reluctantly Hall takes up the job in this chaotic place, with the help of the local radio jock and City Mayor Howard (Ferruccio Amendola). Soon the riff-raff in town learns not to underestimate the new sheriff as he metes out hard-hitting advice to stay out of trouble.
When former Green Beret John Rambo is harassed by local law enforcement and arrested for vagrancy, the Vietnam vet snaps, runs for the hills and rat-a-tat-tats his way into the action-movie hall of fame.
When Billy Peltzer is given a strange but adorable pet named Gizmo for Christmas, he inadvertently breaks the three important rules of caring for a Mogwai, and unleashes a horde of mischievous gremlins on a small town.
When Jake LaMotta steps into a boxing ring and obliterates his opponent, he's a prizefighter. But when he treats his family and friends the same way, he's a ticking time bomb, ready to go off at any moment.