San Antonio Kid.

A geologist has found oil on the neighboring ranches and teams up with Ace who has his gang create a reign of terror to get the ranchers to sell out. But to get rid of Red Ryder, Ace sends for the San Antonio Kid. Arriving, the Kid has a freak accident and Red comes along to save his life. When the Kid later meets with Ace he learns that Red is the man he has been paid to kill. Written by Maurice Van Auken