The film tells about the communist subbotnik in Moscow: production processes on the day of the communist subbotnik at the 1st Watch Factory, in the Moscow-Sortirovochnaya railway depot, at the Likhachev automobile plant, at the electromechanical plant named after Vladimir Ilyich, at the Krasny Proletary machine-building plant , the work of Muscovites at the Olympic facilities under construction in the city, production processes in the shops of the clothing association "Smena", at the confectionery factory "Red October", at the 2nd Watch Factory. City improvement works.