Full titles read: "BRITISH SUBMARINE DISASTER OFF NORTH WALES"
L/S's of the submarine the HMS 'Thetis' being launched the previous year. The commentator says that after under going final trials she sunk. L/S's of several warships and vessels circling the spot where she sunk. Good M/S of a lifeboat...
The British submarine "Ultor" returns from service in the Mediterranean.
British submarines visit Lisbon harbour; their Commander goes ashore.
British built submarines for the Czecho-Slovak Navy are seen leaving the River Tyne.
Other submarines return to port after making every effort to find the lost H-47. Milford Haven, Dyfed.
British submarine has a refit in the Mediterranean then sets off again; also German prisoners.
Shots of a British submarine going into American port.
View from deck of ship or submarine as we travel along a river.