GV. Gibraltar Harbour. LV. Britain's first nuclear submarine HMS Dreadnought alongside quay in harbour. Zoom in to conning tower "S.101 Dreadnought". GV. Dreadnought steams out of harbour. GV. Rock of Gibraltar. GV. Dreadnought at sea at speed. SV. Interior of Dreadnought, officer...
Sailors go through training to become members of the Submarine Corps.
Cuts (out takes, rushes) for SALVAGE ATTEMPT FAILS in G 1310.
Footage of two men demonstrating small U-boat.
Material showing submarine base. Surrender of U-Boats U802 and U826.
Australian newsreel item about making and testing torpedoes.
Men practising escape from 'A' class submarine.
Testing submarine by inventor Vassena.
Footage of miniature sub.