Hank Davis, foreman on a huge dam project, enlists the aid of his two flyer friends when a sinister figure known as The Black Ace leads his Mystery Squadron of masked pilots in an attempt to destroy the dam.
Cast
Bob Steele
Fred Cromwell
Guinn 'Big Boy' Williams
Bill 'Jellybean' Cook
Lucile Browne
Dorothy Gray
Jack Mulhall
Henry 'Hank' Davis
Purnell Pratt
Lafe Johnson
Robert Frazer
Dr. Flint
J. Carrol Naish
Collins
Bob Kortman
Bracken
Lafe McKee
Stephen Gray
Edward Hearn
Sheriff
Kernan Cripps
Tom
Edward Peil Sr.
Andrew Martin
Jack Mower
Carter
Jack Perrin
Roberts
Crew
Colbert Clark
Director, Screenplay
David Howard
Director, Screenplay
Sherman L. Lowe
Screenplay
Al Martin
Screenplay
Barney A. Sarecky
Screenplay
Wyndham Gittens
Screenplay
Earl Turner
Editor
Alvin Wyckoff
Director of Photography
William Nobles
Director of Photography
Ernest Miller
Director of Photography
Nat Levine
Producer
Terry Kellum
Sound Recordist
Lee Zahler
Music
Yakima Canutt
Stunts
George Magrill
Stunts
