The city, the heart of the capitalist world, the center of production and entertainment, and not far from it, exists at the very bottom of the city, which is the underground village. Since most of these villages are free workers and they are threatened with almost permanent unemployment, there is no organization in any form, and factory worker Kim Cheol-geun, a worker at the Hannam Iron Works, tries to form an organization, but an opportunity finally comes when there is no specific policy.