The first of the five films where Bill Elliott played a detective lieutenant in the L.A Sheriff's department, Dial Red "O" (the correct title with the number 0 (zero), as on a telephone dial, shown in ") opens with war-torn veteran Ralph Wyatt getting word that his wife is divorcing him, and he flees the psychiatric ward of the veteran's hospital, wanting to talk to her. His escape touches off an all-out manhunt, led by Lieutenant Andy Flynn of the sheriff's department.

Mitarbeiter einer Detektivagentur machen sich um das Jahr 1870 auf den Weg nach Westen, weil sie den Tod eines ihrer Kollegen aufklären wollen. Hierbei geraten sie an eine Bande von Kopfgeldjägern, die mit schmutzigen Tricks arbeitet.

Former buffalo hunter and entrepreneur Wyatt Earp arrives in the lawless cattle town of Wichita Kansas. His skill as a gun-fighter makes him a perfect candidate for Marshal, but he refuses the job until he feels morally obligated to bring law and order to this wild town.