Gunsmoke (1955)

S6E1 Friend's Pay-Off

Matt receives an urgent call from his long-time friend, Ab Butler, who has been gravely injured with a gunshot wound to the back. Rushing to his aid, Matt finds himself in a complex predicament when Ab's partner arrives and presents a different perspective on the events that transpired. This revelation forces Matt to navigate the murky waters of loyalty and truth while trying to uncover what really happened to Ab.