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.
3.0 / 5
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
Colbert Clark
Director
David Howard
Sherman L. Lowe
Screenplay
Al Martin
Barney A. Sarecky
Wyndham Gittens
Nat Levine
Producer
Lee Zahler
Music
Earl Turner
Editor
Yakima Canutt
Stunts
George Magrill
Alvin Wyckoff
Director of Photography
William Nobles
Ernest Miller
Terry Kellum
Sound Recordist
