Mikolás and his brother Adam end up with a young German hostage of noble blood during a robbery. While their clan prepares for the wrath of the German king, Mikolás is sent to pressure his neighbor Lazar into a defense pact. Persuasion fails and he abducts Lazar's daughter Marketa on the eve of her initiation as a nun in an act of vengeance.
A Czech ship's doctor accidentally meets his fellow expatriates on a tropical island. Under his influence, a sympathetic young woman, who has gone abroad with her sickly old father and her selfish and unprincipled husband, decides to return to her homeland...
The movie describes proletarian life in the Czech Lands after World War I.
