Titles read: "SUBMARINE CREWS IN TRAINING".
Somewhere in Great Britain.
Various shots of young sailors who want to join the Submarine Corps being given a medical examination by naval doctors. Funny M/S of a group of sailors holding up their white long johns and sweaters for the camera...
A one-man submarine is tried out on a lake.
Submarine 'Sunfish' rests in port after successful actions under command of Lieutenant Colvin.
British submarines visit Lisbon harbour; their Commander goes ashore.
Cuts (out takes, rushes) for SALVAGE ATTEMPT FAILS in G 1310.
Men practising escape from 'A' class submarine.
Testing submarine by inventor Vassena.
Footage of miniature sub.