Incident at Yuma

S1 E6: A group of prisoners held at the Yuma Penitentiary escape, stealing a deadly Gatling gun in the process. They head to town, planning to steal enough clothes, money, guns and ammunition to start an army of convicts. Rynning's rangers are spread throughout the territory fighting crime and labor unrest, so in desperation he asks Apaches warriors to join his posse and bring the escapees to bay.