The Gambler Wore a Gun (1961)

The professional gambler Case Silverthorn wants to quit and retire to a small ranch in Marlpine he bought recently On the way there he saves the Sheriffs life who got into an ambush However another man is dead Will Donovan from whom he bought the ranch Neither the Sheriff nor Donovans children know about the sale So Case has to switch back to his former profession while he tries to clarify the situation He comes across a group of cattle thieves