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.
Director: Colbert Clark, David Howard
Screenplay: Barney A. Sarecky, Wyndham Gittens, David Howard, Al Martin, Sherman L. Lowe, Colbert Clark
Producer: Nat Levine
Director of Photography: William Nobles, Alvin Wyckoff, Ernest Miller