A caravan of warships and a submarine in the Barents Sea. Officers and sailors on the ship: in the navigator's room, in the radio room, in the engine room, on the deck, work with instruments and maps, the cook prepares food, relax in the wardroom, keep watch. Seascape through the porthole. Sunset at sea. Night sea. Ships in the Kara Sea, ice. Polar bear on ice. The officer presents membership cards to the icebreaker's mess-room to new members of the CPSU. The ships are sailing in the fog. View of the polar station on Dikson Island, the station's radio room. The plane takes off from the station to determine the ice situation on the way of the ships. Ships and submarines pass through the ice of the Arctic Ocean. Officers and sailors work on board the submarine, the work of divers. A helicopter takes off from the icebreaker. An icebreaker takes a submarine in tow to pass through the ice. Soviet ships meet the US icebreaker in the Arctic. Ships in the Chukchi Sea. Arrival of ships to the shore at the destination.