The Mystery Squadron 1933

Synopsis:

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.

Directed by: David Howard & Colbert Clark
Written by: David Howard & Colbert Clark & Wyndham Gittens & Sherman L. Lowe & Al Martin & Barney A. Sarecky
Runtime: 227 minutes
Cast:
Bob Steele
Bob Steele
Fred Cromwell 
Guinn "Big Boy" Williams
Guinn "Big Boy" Williams
Bill 'Jellybean' Cook 
Lucile Browne
Lucile Browne
Dorothy Gray 
Jack Mulhall
Jack Mulhall
Henry 'Hank' Davis 
Purnell Pratt
Purnell Pratt
Lafe Johnson 
Robert Frazer
Robert Frazer
Dr. Flint