The film tells about the problem of transferring the flow of Siberian rivers to Central Asia and Kazakhstan. Irtysh river. Cargo ships, among them the ship "Bratislava", sail along the river. Water construction structures. Fishermen catch fish with nets. Bachurin G.V., Candidate of Geographical Sciences, Institute of Geography of Siberia and the Far East, Candidate of Geological and Mineralogical Sciences, Head of the Department of Problems of Transferring Part of the Runoff of Siberian Rivers to Kazakhstan and Wed. Asia M.M. Madenov, Corresponding Member of the USSR Academy of Sciences, Chairman of the Council for Processing and Distribution of Water Resources of Siberia, Candidate of Geographical Sciences of the State Hydrological Institute O.L. Markova. - give interviews (sinhr.). Altai mountains. Ustk-Kamenogorsk HPP. Construction of the Shulbinskaya HPP. A pumping station is in operation. Irrigation installations are working in a wheat field. Omsk. Oil refinery plant. Tobolsk. Construction of a petrochemical plant.