Jim goes on the hunt for a band of robbers that is targeting Pony Express riders.
Matt Clark sets out on the trail of a gang of cattle rustlers led by one of the West's youngest and most notorious outlaws, Billy Bonney, aka Billy the Kid.
A mysterious vigilante who has been trying to help water-starved homesteaders against wealthy ranchers is framed for a bank robbery.
Crooks try to claim the land where Champion and his herd live. Barry Curtis, Jim Bannon, Mark Dana.
A young man returns to Diablo to practice medicine after his father put him through medical school.