A miniature destroyer ship sets out on patrol duties around the British coast.
Titles read: "BRITAIN'S ANSWER TO E-BOATS - EXCLUSIVE PICTURES".
Somewhere on the British coast.
M/S of the White Ensign flag being raised on a small ship. Various shots of the crew preparing this new miniature destroyer ship before setting out on patrol duties around the British coast. Several shots of the the ship at sea. We are told it has power-operated turrets, depth charges and other weapons, making it "a real terror to aircraft, E-boats and U-boats alike".