Antarctica. View of the Mirny settlement under construction. Houses of winterers. Panorama of Enderby and Vostok stations. A sled-tractor train is moving. Soviet and foreign scientists in the laboratory are conducting research, taking readings of instruments. View of the American base "McMurdo" on the coast of the Ross Sea. Winterers are building a nuclear power plant. View of the Japanese station. Meeting of Soviet and Japanese scientists. Panorama of the Australian station "Mawson". Penguin colonies. The settlement "Mirny" meets a new shift of polar explorers.