The city of Leningrad. Shoppers in stores buy industrial and food products for which prices are reduced. Assembling a turbine for the Kuibyshev hydroelectric power station in the shops of the Leningrad plant named after Stalin. Testing the turbine impeller. Planting seedlings in the greenhouses of the Stalin collective farm in the Gatchinsky district of the Leningrad region. The building of the new railway station in the city of Vyborg, Leningrad Region. Internal view of the station. Lobby, passenger lounge, mother and child room, restaurant; passengers in the restaurant. A scientist, Doctor of Biological Sciences, BP Tokin, who discovered the property of many plants to secrete phytoncide substances capable of killing protozoa. BP Tokin and laboratory assistants carry out experiments with plants containing phytoncides: onions, eucalyptus leaves, horseradish, mustard. Exhibition of Czechoslovak Fine Arts at the Russian Museum. Visitors examine paintings and sculptures.