Gunsmoke S14E15 - The Twisted Heritage

On her way back to Dodge after a short trip, Kitty shares a stagecoach ride with Blaine Copperton, a gentlemanly but uncertain man who seems to be far less mature than his age. Suddenly, two armed bandits attack the stage, killing the driver and seriously wounding Copperton. Copperton manages to grab a shotgun and kill the bandits, but then collapses unconscious. Kitty drives the stage to Copperton's ranch, where she finds a family of squatters living in a shack. The squatters, who have a long-running feud with the powerful Copperton family, refuse to give any help. When Kitty gets to the ranch headquarters and finds Copperton's mother, she finds a powerful matriarch who treats her son like a child, her granddaughter (Copperton's daughter) as barely legitimate and everyone else like so many servants. The mother soon finds out about the squatters. She goes to their shack, burns it to the ground, and shoots a squatter in the leg. Kitty calls for help before things get way out of hand, but before Matt can get there, the squatters kidnap Kitty and demand that Copperton show up to rescue her and get shot in the leg himself. Copperton defies his mother and shows up at an old mine where the squatters have hidden out, but will the feud turn deadly?