Mr Charles Jarman explains how to fight U-boats.
Full title reads: "THE U-BOAT MENACE".
U-boat at sea. Various shots of the activity below the deck with the hatches closed. The U-boat gets ready to dive. Shots of the captain looking through periscope. He gives orders to fire torpedo. Close up shot of the water splashing as the U-boat dives in. Night, a ball of flame on the horizon means a hit for the U-boat. Various flashback shots of the Anglo-American North African armada.
Mr Charles Jarman General Secretary of the National Union of Seamen speaking (natural sound). He speaks of the need for more and speedier merchant vessels.
Various montage shots of past boat launchings at shipyards in America and Great Britain.
Mr Jarman saying that all ships must move very fast to avoid U-boat menace.
(Mute & Track Negs.)