Leningrad "cleansing" in the party at the Krasny Putilovets plant. Meeting of communist workers. Cleaning conference. Admission to the party. Construction of the Kharkov Tractor Plant. Blacksmith shop, mechanical repair shop, workers' village. Commissioning of blast furnaces at the plant. Tomsky in Makeevka. Logging in the Karachay Autonomous Region. Visits to the ships of the Black Sea Fleet by the chiefs. The Red Navy men show the cruiser to the chiefs, accept gifts from them. Moscow. Seeing off foreign guests who came to celebrate the 12th anniversary of the October Revolution.