Two old friends, Matt Morgan (
Kirk Douglas) and Craig Belden (
Anthony Quinn) are now in different professions. Belden, a rich cattle baron, is the de facto ruler of the town of Gun Hill. Morgan is a
U.S. Marshal living in another town with his
Cherokee wife (played by
Ziva Rodann) and young son, Petey. Two young drunken cowboys rape and murder Morgan's wife while she is returning with their son from a visit to her father. She succeeds in inflicting a deep and identifying whip wound on the cheek of one of her attackers. While the attackers are preoccupied, the boy escapes on one of the killers' horses, which bears a distinctive, fancy saddle. Morgan sets off to find the killer. One clue is the saddle, which he recognizes as belonging to his old friend, Belden. Assuming it was stolen, Morgan travels to Gun Hill to pick up the trail. Morgan goes to Belden's ranch intending to return the saddle and get information. Once there, he quickly realizes that Belden's son Rick (
Earl Holliman) is the killer. Belden refuses to give up his only son to whom he is deeply devoted. Morgan in turn vows to capture Rick and get him on the last train from Gun Hill that same day. In town, Morgan encounters a hostile community with no one willing to cooperate with him or help him find Rick. One person, Belden's former lover, Linda (
Carolyn Jones), secretly tells him where Rick is likely to be. Morgan manages to take Rick prisoner, holding him at the hotel despite resistance from the hotelkeeper. In the meantime, Craig Belden sets out from the ranch with his men and arrive in town to discover that Rick is now Morgan's prisoner and handcuffed to the bed of a hotel room. After a short negotiation between Craig Belden and Morgan, a shootout begins. Morgan manages to hold off Belden's shooters and is followed by a tense standoff. Now, Linda, who knows everyone in town becomes a prominent go-between. She enters the hotel and unsuccessfully pleads Craig's case to free Rick, but Morgan asks her, surprisingly, for a shotgun. Back in the saloon Linda meets Lee, who confesses to being Rick's accomplice in rape and murder. She has also established that Craig is not willing to marry her. So, Linda resolves to help Morgan and sneaks a shotgun to Morgan's hotel room. In the meantime, Lee, sets fire to the hotel to flush out Morgan. With the hotel burning, Morgan presses the shotgun to Rick's chin and comes downstairs, climbs on his buggy and moves slowly toward the train station, with Craig Belden, his armed men and the townspeople following. All the while, Morgan threatens to pull the trigger and kill Rick if an attempt is made to stop him. At the train station, Lee confronts Morgan and shoots at him but kills Rick by mistake. Morgan then kills Lee with the shotgun. As the train prepares to leave, a devastated Craig Belden confronts Morgan in a final showdown. Morgan kills him, then boards the train as it is pulling out of the station. ==Cast==