A German wartime biography of Rudolf Diesel, inventor of the Diesel engine. The movie links the importance of the engine to the war by starting the movie with newsreel clips of German Navy U-boats in action.
Willy Birgel
Hilde Weissner
Paul Wegener
Josef Sieber
Arthur Schröder
Erich Ponto
Hilde von Stolz
Hubert von Meyerinck
