During the summer holidays, the children's company gathers around the Rhine, but the curious boy Kārlis stays alone. The girl Herta comes from Riga to visit her relatives. She spends time with interest and listens to Karl's stories. The offended Reinis and his friends play an evil joke with Kārlis, wanting to laugh at the different boy.
The action takes place in Kurzeme in the 17th century. The Duke of Courland, the King of Poland and the German barons wants power over the Latvian people. Farmers are the biggest victims of this power struggle.
After leaving prison, a crook Peter Dachnikov, immediately returned to his former craft. But finding the cancellation of money and the lack of banks in the city, he drew attention to the girl Katya and fell in love with her…