Full title reads: "SINKING A U-BOAT".
Various shots of a convoy moving through very heavy Atlantic - poor quality footage. Various shots of the crew of ship going into action releasing depth charges. Large explosions from the charges. Several shots of a U-boat which...
Amateur footage of British warships blasting U-boats in the Atlantic.
Demonstration in Rio after U-boats sink Brazilian ships; Brazil then enters the war.
Sloops of the second escort group receive heroes welcome in Liverpool after sinking U-boats.
Library footage of the main events that shaped 1939.
French Admiral Le Bigot presents a ship and her company with a medal.
Footage of aeroplanes and naval ships combining to sink submarine.
Documentary film about events of 1943, especially the Battle of the Atlantic.