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
as Ken Baxter
Fay McKenzie
as Letty Morgan
Julian Rivero
as Pancho
Ralph Peters
as Panhandle
John Elliott
as Hiram Crabtree
Charles King
as Joe Larkin
Charles King
as Dr. Flotow
Sven Hugo Borg
as Baron Starkoff
Michael Vallon
as Dr. Wahl
Julian Madison
as Jim Morgan
Kenneth Rhodes
as Slim
Richard Alexander
as Big Nick Harden
