A woman returns to her ranch out west to find her husband has been killed by a band of outlaws who want the railroad-valuable land. A brooding, young cowboy steps in to stop them.
Story of a young woman, Mrs. McBain, who moves from New Orleans to frontier Utah, on the very edge of the American West. She arrives to find her new husband and family slaughtered, but by whom? The prime suspect, coffee-loving Cheyenne, befriends her and offers to go after the real killer, assassin gang leader Frank, in her honor. He is accompanied by Harmonica, a man already on a quest to get even.