As one of the founders of the town of Lincoln, John Chisum is increasingly worried as Lawrence Murphy moves in on the local stores, bank and land by questionable means. Chisum and fellow honest ranch owner Henry Tunstall try and use the law, but Murphy owns that too. Confrontation threatens and Tunstall's man Billy Bonney is not slow to get involved.

Screenwriter Dixon Steele, faced with the odious task of scripting a trashy bestseller, has hat-check girl Mildred Atkinson tell him the story in her own words. Later that night, Mildred is murdered and Steele is a prime suspect; his record of belligerence when angry and his macabre sense of humor tell against him. Fortunately, lovely neighbor Laurel Gray gives him an alibi. Laurel proves to be just what Steele needed, and their friendship ripens into love. Will suspicion, doubt, and Steele's...

Picking up three years after the events in Magnum Force, a threatening terrorist group called, The People's Revolutionary Strike Force declare war to the city of San Francisco and demand a ransom to be paid, otherwise they plan to blow the city apart. While Inspector 'Dirty' Harry Callahan is at a limbo following his unorthodox method during a robbery, he's at it to dispatch the terrorist group, by playing their game by being more dirty than ever. But this time, he's got a new partner, which...

In 1971, San Francisco faces the terror of a maniac known as the "Scorpio Killer" (Andrew Robinson), who snipes at innocent victims and demands ransom through notes left at the scene of the crime. Inspector "Dirty" Harry Callahan (Clint Eastwood) is assigned to the case along with his newest partner Inspector Chico Gonzalez (Reni Santoni) to track down Scorpio and stop him. Using humiliation and cat-and-mouse type of games against Callahan, Scorpio is put to the test with the cop with a dirty...