Dirty Harry Callahan returns again, this time saddled with a rookie female partner. Together, they must stop a terrorist group consisting of angry Vietnam veterans.

An Ottawa police captain searches for the person who poisoned his sister, who was attending the university in Montreal. So desperate is he for revenge that he begin to use his own brutal methods to find the killer. Soon he discovers that not everything is what he thought it was.

Franco decides to kill his girlfriend’s pimp, and from there things go bad and he gets beaten up by the henchmen of Gordon Mitchell, who also kidnaps and murders his girlfriend. So Franco buys two Magnum .38’s from a guy called “The Gypsy” and . . . it’s time for revenge.

Jerry, an undercover agent, has successfully infiltrated a bigtime drug syndicate. He gets assigned, however, to liquidate Roselle, the lone witness to a murder. In a dilemma, Jerry has to protect Roselle without blowing his cover.