Assembly and testing of a turbine generator for the Stalingrad state regional power plant in the workshop of the Leningrad electric machine-building plant "Electrosila". During the testing of the turbine generator, the chief engineer Efremov and the director of the plant Mukhin are present. Meeting of sailors with the writer M. Slonimsky aboard the cruiser "Maxim Gorky". M. Slonimsky shares his memories of the writer A. M. Gorky (synchronously). Construction of a gas shale plant in the town of Kohtla-Järve, Estonian SSR; construction of auxiliary workshops; construction of a gas shale battery. The city of Leningrad. Restoration work in the halls of the Winter Palace (Hermitage). Pioneer camp in the village of Kezevo near Leningrad; physical exercise, morning ruler, pioneer breakfast. The pioneers are swimming, playing volleyball. Pioneer bonfire.