Wartime propaganda piece reporting on the success of the economic blockade of Germany in the early years of the war.
Leslie Banks
as Taylor
Michael Redgrave
as Russian
Will Hay
as Skipper
John Mills
as Tom
Bernard Miles
as Royal Navy Mate
Michael Rennie
as George
Frank Cellier
as Schneider
Robert Morley
as Von Geiselbrecht
Alfred Drayton
as Direktor
Marius Goring
as German Propaganda Officer
Austin Trevor
as U-boat Captain
Albert Lieven
as Gunter