Betrayal and espionage abound as an experimental aircraft is readied for its maiden voyage.
Director
Malcolm St. Clair
Peter Lorre
Colonel Gimpy
Brian Donlevy
Ace Martin
Helen Wood
Ruth Franklin
Ralph Morgan
John R. Flemyng
Thomas Beck
Joe Randall
Kay Linaker
Mrs. Fleming
Lester Matthews
Sidney Grant
Earle Foxe
Operative #30
J. Carrol Naish
Operative #77
Oscar Apfel
Alfred Knuxton
Paul Stanton
Daniel D. Harrington
Howard Hickman
Major White
Lynn Bari
Office Worker (uncredited)
Madge Bellamy
Secretary (uncredited)
US
