"One Shot" Ross, who has brought law and order to the town of Painted Gulch, decides to hang up his six-shooters when he sees the daughter of one of his victims sobbing over her dead father's body. While traveling East, Ross's stagecoach is held up and Ross, knocked unconscious, is taken to a nearby cabin owned by the Sheridans. After Mr. Sheridan is killed when he inadvertently stumbles upon Jim Butler and his gang dividing up the spoils from the stage robbery, Ross takes pity on Nan, the old man's daughter, and decides to bring the outlaws to justice. Feigning feeble-mindedness, Ross obtains a job on Butler's ranch and uncovers evidence which proves that Butler is the leader of the outlaws. Heading the posse, Ross captures Butler's gang and then rides off to the Sheridan cabin where, in a shootout, he rescues Nan from Butler.