While riding the range one day, Sunset Sprague saves ranchman Calico Barnes from an ambush, and the rancher confides that he and his niece, Rose Loring, are endangered by the outlaws, who have killed Rose's father and are bent on stealing the mine that he had discovered. Sprague agrees to help Rose and travels to the next town where he meets Mace Dennison, the secret head of the bandits who is also Rose's sweetheart. Sprague swiftly learns that the gang is blackmailing Rose's half brother Red by accusing him of murdering Rose's father. After several clashes with "the Crow," Dennison's henchman, Sprague clears Red's name when the Crow, mortally wounded, confesses that it was Dennison who killed Rose's father. Thus Sunset wins both Red's freedom and Rose's love.