Gunsmoke S16E01 - Chato

Chato is a mixed-race Native American with a serious grudge against lawmen. He also has a remarkable athletic ability: he can run and jump over mountain ledges while keeping up a steady fire with his rifle. After an exciting duel, he kills a friend of Matt Dillon's who was tracking him. Matt comes to New Mexico and engages him in a duel of wits with Chato to catch him. Chato's one soft spot is his common-law wife. She is shot and severely injured by a group of renegade tribesmen who were also gunning for Chato. Chato calls a truce with Matt so the group can escape and get her to a doctor - but it's only a truce.