Directed by Fred Jackman
Rex ... The Devil Horse
Yakima Canutt ... Dave Carson
Gladys McConnell ... Marion Morrow
Bob Kortman ... Prowling Wolf
Roy Clements ... Major Morrow
Fred Jackman Jr. ... Young Dave
As a boy, Dave Carson's family is wiped out in an Indian massacre. Dave and his colt, Rex, become separated during the attack. Six years later Dave is a scout for the Army and Rex is the Devil Horse greatly feared by the Indians. The two meet again and unite to help fight an Indian attack on the fort.