Synopsis: Deranged ranch owner Henry Steele (Charles Middleton) wages a bloody campaign of terror against his Arizona neighbors with a sadistic iron fist and a ruthless band of renegade Apaches. When Steele orders the murder of an Arizona Ranger caught snooping around his remote ranch, Ranger Bob Sanborn (George O'Brien) is sent to investigate. Posing as a cowboy, Sanborn soon discovers that Steele's megalomaniacal scheme to grab more land and power also includes a forced marriage to his dead partner's daughter (Cecilia Parker), being held prisoner in Steele's guarded compound. Sanborn's mission to stop Steele and rescue the imprisoned woman is imperiled when Steele gets wise to Sanborn's true identity.