"A British secret service agent and his sister travel to Berlin to recover a top secret RAF invention which was stolen from the French government."
Basil Radford
as John Richardson
Sylvie St. Clair
as Helen Richardson
Thorley Walters
as Max Von Reimer
Peter Gawthorne
as General Kurt Von Reimer
Tom Helmore
as Captain Benoit
Joss Ambler
as Colonel Blondin
George Hayes
as Inspector Welter
Kiwi
as Richardson's dog
Manning Whiley
as
Victor Gammon
Wilson Coleman
Sidney Monckton
Ingram Denyer
Megs Jenkins
as Berta Von Reimer
C. Denier Warren
as Waiter
John Baxter
Director
John Corfield
Producer
Fred A. Swan
Production Manager
Bob Jones
Assistant Director
Barbara K. Emary
Continuity
Michael Hogan
Screenplay
Charles Robert-Dumas
Story
James Wilson
Director of Photography
Cecil H. Williamson
Editor
Duncan Sutherland
Art Direction
Kennedy Russell
Music
F. McNally
Sound Recordist