An FBI agent is discharged for insubordination after assaulting a suspect, and ends up reduced to being the sheriff of a backwater Southern town. He is later offered his old job back - on the condition he will infiltrate a gang of Chicago mobsters and bring their leader to justice for killing the son of the Bureau's chief. Action thriller, with Arnold Schwarzenegger, Sam Wanamaker, Kathryn Harrold, Ed Lauter and Dare McGavin