Siberian landscapes. Taiga, Lake Baikal, the Yenisei River. Flooding in the city of Krasnoyarsk; flooded houses, streets. Dump trucks, bulldozers on the construction of a dam blocking the path of water. The movement of trains and trains along the Abakan-Taishet highway. Construction of residential buildings and a mining and metallurgical plant in the city of Norilsk. Chukotka Peninsula; herd of deer in the tundra. The woman processes the deer skins. The crew of the boat is hunting a whale at sea. Akademgorodok near Novosibirsk. Academician S. V. Sobolev in the office of the Institute of Geology and Geophysics of the Siberian Branch of the USSR Academy of Sciences. City Mirniy. Blasting operations in a diamond mine open pit. The manager of the Yakutalmaz trust, Tikhonov, speaks of the difficulties of housing and everyday life. The building of a diamond processing plant. Tractors, bulldozers are laying a road through the taiga to the site of a new diamond deposit near the village of Aikhal. Architects are working on a project for a new covered city of Aikhal. Construction of the Krasnoyarsk hydroelectric power station.