1syuzh. - Kerch. Plant them. Voikova: the work of a new filling machine in one of the shops. 2syuzh. - Leningrad. Optical and mechanical plant "TOMP": production processes in workshops, assembly of a film projector, a ready-made film projector. 3syuzh. - Moscow. Subway construction: soil exploration, work in the mines of tunnellers. 4syuzh. - Trial run of snowmobiles and motorcycles of new Soviet design along the Leningrad-Moscow route: snowmobiles, motorcycles at the start, finish, in motion along the route.