1syuzh. - Czechoslovakia. Prague: rally of the communist party, speeches by speakers, police. 2syuzh. - Moscow. Arrival of the Felix Dzerzhinsky 1-5-1 steam locomotive, manufactured at the Lugansk steam locomotive plant, to the platform of the Kievsky railway station. Solemn meeting. Arrival of the OEL-6 diesel locomotive manufactured at the Kolomna plant. Meeting. Speaker of the People's Commissariat for A. Andreev. On the podium: G. K. Ordzhonikidze, K. E. Voroshilov. 3syuzh. - Dzerzhinsk: construction of fiberboard houses. Buildings: chemical technical school, FZS school, department store, kitchen factory, panorama of the city. 4syuzh. - Moscow. Meeting of workers of Moscow with working delegations of 25 countries in the Column Hall of the House of Unions: delegates in the hall, speeches of speakers, including the General Secretary of the Profintern A. Lozovsky. 5syuzh. - Leningrad. Submarine "L-55", boat at the embankment. People on the deck of the boat. A line of sailors. The submarine departs from the shore, floats.