The cities of Novosibirsk, Tomsk. The use of a laser beam, laser installations in improving the atmosphere, detecting foci of forest fires, in civil aviation, in medicine, in astronautics. Type of laser installation. Exhaust gases from motor vehicles, smoke over the city from boiler houses, industrial enterprises. Extinguishing a fire in the forest. The doctor examines the patient using a laser device. Scientists at the telescope. Interview with a physicist, Lenin Prize laureate V. P. Chebotaev (synchronously). Public buildings of the city of Novosibirsk, decorated with monumental smalt panels by the artist V.P. Sokol; sketches of the decoration of the stations of the Novosibirsk metro, prepared by the artist V.P. Sokol.