A film about the interesting and hard service of man-of-war's men in the submarine fleet.
Sunrise. Surf. Sea. Rocks on the sea. Seagulls. By sea sailing ships. Leningrad Higher Naval School named. Frunze. Portrait of Nakhimov, Ushakov, MV Lazarev. Cadets in the classroom, in the hostel. A submarine at sea. The commander looks through the periscope. Engine-room of the boat. Radios. The wireless operator, the acoustician for the work. Depth gauge. Alarm. Ran sailors. Torpedo attack. Sea Hunters in the sea. The command post. Working in the torpedo compartment. Sailor Terminates hole.