The film is dedicated to the expedition to study the warm current of the Pacific Ocean - the Kuroshio (Japanese current). Pacific coast, surf. Children wander along the shore, catch sea urchins, fish, cook their catch on a fire. Types of Cape Tolbchaty and Cape Stolbchaty. The nature of the Far East: a lake, geysers, mountains, a waterfall, deer graze. Far Eastern plants: bear pipe, Sakhalin buckwheat, butterbur, eleutherococcus and others. Photos of typhoons. Research vessel in the ocean. Scientists-members of the expedition at work. Navigation room on the ship, sailors at the instruments. The raging ocean. Wreckage of the lost ships. Ships in the ocean. The underwater vehicle "Oceanologist" descends into the sea. The underwater world of the Pacific Ocean: jellyfish, crabs, crayfish, starfish, mussels, fish. Fishing boat in the ocean. Fishermen catch fish with a net, fish in the bunker. Autumn landscape. Children pick mushrooms and berries. Seals rookery, bird colony, seagulls over the sea. Sunset over the sea.