Nazi seaplane patrols the North Sea. A sketch of the German Blohm and Voss Bv 138 floatplane. A BV 138 seaplane takes off, by catapult, from a base in the North Sea. Views of aircraft in flight. Observer-gunner uses binoculars to observe area. Pilot and copilot in the cockpit of the aircraft. Plane in flight over German ships in the North Sea. Views from the BV 138 flying over ships putting up smoke screens.
German submarines and Allied ships in the North Sea during World War II. Crew men aboard a German submarine. Sailors on the conning tower use binoculars to survey the surrounding waters. The Captain surveys the waters. The crew works in various parts of the ship. The submarine displacing water. A crew member looks through the submarine periscope down below. An Allied aircraft in flight overhead. The alarm is sounded, the crew members run down into the submarine. The Captain gives orders to submerge. The submarine submerges fast. The crew communicates. Sailors at various controls. The crew listens quietly. A sailor at the radio. The Captain looks through the periscope.
Mine laying operations by Nazis in North Sea. Guns at the bow of a German ship. Men drop mines in the water. Enemy aircraft in flight charge in for an attack. German troops on board the ship fire antiaircraft guns to counter the Allied air attack. Mine laying operations continue. (World War II period).
A film dramatizes a German submarine on patrol in the North Sea during World War II. Activities aboard the submarine during an attack shows German soldiers aboard the submarine looking through binoculars. German Navy personnel at various machines and equipment aboard the submarine. View of gauges. A torpedo is launched from the submarine. Crews on the deck of the submarine.
U.S. Army Air Force Boeing B-17 Flying Fortresses bomb Heligoland island in Germany during World War II. B-17s in flight. Several aerial views of the island and another island next to it. Smoke rises from burning oil storage tanks on Heligoland island. A runway on the island in the background. Heavy flak. German coastline: Heligoland and Friesian islands. Bomb craters and smoke from burning oil storage tanks. Bombs are dropped from Allied aircraft. The aircraft are in formation over clouds.