"A group of young men who work at an aviation factory begin to suspect that a doctor who runs an air ambulance service is secretly a spy transporting secret information from the plant to enemy agents."
Leo Gorcey
as Muggs McGinnis
Bobby Jordan
as Danny Graham
Joan Barclay
as Helen Munson
Dave O'Brien
as Tom Lawson
George Pembroke
as Dr. Nagel
Sunshine Sammy Morrison
as Scruno
David Gorcey
as Peewee
Donald Haines
as Skinny
Eugene Francis
as Algy
Bobby Stone
as Louie
Herbert Rawlinson
as Mr. Reynolds
Dennis Moore
as George
Forrest Taylor
as Mr. Forbes
Robert F. Hill
as Mr. Woodward
Mary Bovard
as Maizie
Stephen Chase
as Jack
Al Ferguson
as Henchman
Jack Kenny
Carey Loftin
Bud Osborne
Eddie Parker
Dick Scott
William West
Director
Al Martin
Screenplay
Story
Fred Jackman Jr.
Director of Photography
Pete Mayer
Associate Producer
Herman Pett
Assistant Director
Sam Katzman
Producer
Arthur Hammond
Fred Preble
Set Decoration
Ed W. Rote
Production Manager
Glen Glenn
Sound
Robert Golden
Editor