Gunsmoke (1955)

S18E20 Whelan's Men

Years after Dillon shut down his operations, a disgraced ex-lawman returns with a crew intent on seeking revenge. With Dillon away, they take over the Long Branch, settling in for a poker game as they bide their time. Faced with the threat, Kitty takes a bold stand, wagering the entire town's fortune along with Matt's life against the outlaws’ hand.