The Mystery Squadron
•
3hrs
47mins
Directed by
Colbert Clark,
David Howard,
Starring
Bob Steele,
Guinn 'Big Boy' Williams,
Lucile Browne,
Jack Mulhall
...
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.
