Siberia. Spring landscapes. All-Union Communist Subbotnik. Cleaning of premises and repair of diesel locomotives in the Moskovka depot of the Omsk region. Freight train traffic. Women work in the greenhouses of the Sannikovsky dairy and vegetable state farm. Institute of Atmospheric Optics, Tomsk Academic Town. Experiment in the laboratory of a laser radiation source. The city of Novokuznetsk. Kuznetsk Metallurgical Combine. Steel spill. Metallurgists A. Ya. Chalkov and MM Privalov are the creators of a new melting technology. Tank T-34 on a pedestal at the entrance of the plant. Chronicle of the Second World War: Novosibirsk, performance of artists on stage, wounded in the hospital, a nurse bandaging the wounded, hospital staff (photos). War veteran Nikolaev talks about the war (synchronously). Chronicle: the construction of the Novosibirsk Opera and Ballet Theater, a scene from the opera "Ivan Susanin", fireworks. The building and premises of the theater. Veterans of the Great Patriotic War in the theater. A scene from the opera "The Dawns Here Are Quiet...."