Bat Masterson (1958)

S3E15 The Court Martial of Major Mars

While traveling in a stagecoach, Bat Masterson, Major Mars, and the lovely Lottie Tremaine encounter trouble when a revenge-seeking gang ambushes them. The gang, led by a Native American whose family was killed during a massacre carried out by the Major's troops, seeks retribution. Bat finds himself compelled to protect the Major from the impending threat.