Exhibition of the Comintern in Moscow. Arrival in Moscow of the Commander-in-Chief of the Mongolian Army. The Volga spill in Saratov. The first waste incineration station in the USSR MKH. The station's electric cars collect rubbish in the courtyards. Diving work in Sevastopol to raise ships from the bottom of the sea, flooded by the White Guards. Animation: "Political toys based on the drawing of the artist Denis".