The story of a poor, disintegrating family of a mother Fišerová and her three children. It is set in the 1890s - a time when the poor working classes did not yet have the right to vote or a permanent eight-hour working day.
Together with a group of temporary workers, a group of experienced labourers is building a land reclamation system to turn the South Bohemian marshes into a "Seventh Continent" of fertile soil.
The group of mining foreman Kohut is about to enter the competition for the title of Brigade of Socialist Labour. All the men are in favour, only young Ondracka needs to be firmly re-educated...
In 1647, the impoverished noble Václav Rynda shelters an imperial commissioner-only to learn the visitors are French agents plotting a Bohemian revolt against the Habsburgs.