Construction of the Chelyabinsk Tractor Plant; empty pit, excavators out of work, drunken workers; enrollment of workers' wives to a construction site, competition of teams to eliminate the breakthrough. Old dirty streets of Podolsk, a church, and a former bazaar, the construction of new streets with multi-storey buildings, a canteen, a school, a bakery, improvement of the city. The workers of the Moscow electric plant receive certificates, go from door to door, register children for enrollment in schools. Pedagogical exhibition in Leningrad.