When a man calling himself "the Scorpio Killer" menaces San Francisco, tough-as-nails Police Inspector "Dirty" Harry Callahan is assigned to track down the crazed psychopath.
Inspector "Dirty" Harry Callahan reluctantly teams up with rookie Inspector Kate Moore to foil a terrorist organization made up of disgruntled Vietnam veterans.
When a woman exacts deadly revenge on the aggressors who raped her and her sister ten years earlier, Inspector "Dirty" Harry Callahan is assigned to the case.