When a madman dubbed 'Scorpio' terrorizes San Francisco, hard-nosed cop, Harry Callahan – famous for his take-no-prisoners approach to law enforcement – is tasked with hunting down the psychopath.

"Dirty" Harry Callahan is a San Francisco Police Inspector on the trail of a group of rogue cops who have taken justice into their own hands. When shady characters are murdered one after another in grisly fashion, only Dirty Harry can stop them.