

21/12/1933
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.

Bob Steele
as Fred Cromwell

Guinn 'Big Boy' Williams
as Bill 'Jellybean' Cook

Lucile Browne
as Dorothy Gray

Jack Mulhall
as Henry 'Hank' Davis

Purnell Pratt
as Lafe Johnson

Robert Frazer
as Dr. Flint

J. Carrol Naish
as Collins

Bob Kortman
as Bracken

Lafe McKee
as Stephen Gray

Edward Hearn
as Sheriff

Kernan Cripps
as Tom

Edward Peil Sr.
as Andrew Martin

Jack Mower
as Carter

Jack Perrin
as Roberts
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