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Matt (James Arness) is forced to kill Sam Kertchner (Fredd Wayne), a wild-eyed outlaw who'd come to Dodge looking for trouble. Before long, Sam's 16-year-old brother Peyt (Jack Diamond) shows up in town, determined to avenge his brother's death. Matt must somehow straighten Peyt out before one of them ends up full of holes. Based on the Gunsmoke radio broadcast of August 23, 1954, this episode reunites actor James Arness) with director Christian Nyby, who'd previously worked with Arness in the 1951 sci-fi film classic (The Thing.