Moscow city. First State Bearing Plant. Production processes in workshops. Workers A. Gromov, S. Tyshkovsky, N. Sakhno, B. Kapustin at work, give interviews (synchronously). Schoolchildren on excursions in one of their workshops. Construction of residential buildings in Moscow. Builder M. E. Timofeev at work. Newsreel. Production processes at construction sites of the first five-year plans (1929-1930s).