Members of the expedition of the Institute of Geography of the Academy of Sciences of the USSR, headed by D. Yu. Venneri, go through the snow-covered spaces; are filming. Coal mining in the areas of the village of Chulman and the city of Aldan by industrial means. Harvesting at the "Urozhainy" state farm, Altai Territory. Members of the expedition at the airfield in the village of Mirny. Fishermen from the village of Yarsale are fishing on the Ob River. Chukchi in the village of Sireniki. Construction of new houses at the Nelkam mine in Yakutia. Production processes at the construction of the Novosibirsk hydroelectric power station. Reindeer breeders on the collective farm. Stalin, Tyumen region. First Secretary of the Okrug Committee of the Yamal-Nenets National Okrug D.P. Naumov and a noble reindeer breeder of the collective farm named after Stalin Terentyev are interviewed by journalist A. Maryamov. Cameramen are filming the taiga, the Lena River, mountains, Lake Baikal.