A wounded archaeologist crawls into the camp of three kindhearted cowboys. When the cowboys bring him to a nearby trading post, he's murdered after he lets slip a secret about a hidden cave. Investigating his death, Ken and his friends encounter a land dispute between a pair of neighboring ranches, an arrogant German baron and a mysterious shack that houses a great secret.
Ken Maynard
Ken Baxter
Fay McKenzie
Letty Morgan
Julian Rivero
Pancho
Ralph Peters
Panhandle
John Elliott
Hiram Crabtree
Charles King
Joe Larkin
Charles King
Dr. Flotow
Sven Hugo Borg
Baron Starkoff
