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
