Lone protector of a terror-stricken family marked for death by an unseen, unknown peril...the mysterious Black Rider!
A mining engineer teams up with a crusty deputy sheriff to solve the mystery killings at an old mine where the owner's family waits for him to die, and where a valuable radium strike may have been made.
Screenplay: Edward E. Paramore Jr.
Director: Charles Barton
Producer: Harold Hurley
Director of Photography: Archie Stout
Writer: Ethel Doherty
Larry Sutton
Tex Murdock
Mrs. Borg
Jim Ballard
Rita Ballard
Mrs. Ballard
Flora Ballard
Ling Yat