World War One. Location of events unknown.
Shot of a submarine moving along surface of sea. Nationality uncertain.
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.