As a blistering heat wave holds Dodge City in thrall, and Matt Dillon (James Arness) must prevent an other decent man named Rance Bradley (James Westerfield) from becoming a murderer. Bradley has accused low-life gunslinger Cope Borden (John Dehner) of being a horse thief, an offense punishable by hanging. No sooner has Borden been cleared of this charge than he kills Bradley's nephew in self defense. Though Matt hates the despicable Borden as much as anyone, he is duty-bound to save the man from a lynch mob organized by the grieving Bradley. This is the Gunsmoke episode in which Matt Dillon first utters the immortal line "Get out of Dodge!" ~ Hal Erickson, Rovi