Soldiers of the Red Banner Yeisk motorized rifle regiment during combat and theoretical training, in the ranks. Chronicles of the period of the Civil War in Russia. Military exercises in one of the tank units. Soviet nuclear submarine on a campaign. Crew members in the instrument compartments. Submersion of the boat. Destroyers at sea. Training battle. Operating submarine. Sailors at leisure. Watching a movie. Return of the submarine from the campaign. Lieutenant Ivanov's wedding. Guests congratulate the bride and groom, the bride and groom kiss, the guests dance. Artists of the song and dance ensemble of the Leningrad Military District on tour. Rehearsal, performance of the ensemble (synchronously). Present: choreographer and head of the ensemble.