After the death of his father, prince Tristan is living in Cornwall at the court of his uncle, King Marke, who treats him like a son. When the Irish king sends his son Morold over to demand high tax payments, Tristan challenges him to combat. He manages to kill Morold but is very badly injured, and is placed in a boat to be healed by the magic powers of the sea, which takes him across to Ireland.

On the Schiermoser farm tense expectation prevails. The 'Urban', the Schaubleins, surprisingly announced their arrival. In the past, they were welcome as generous summer visitors. But now the shortage years of the First World War prevail. And the farmer's wife suspects lazy parasites in the townsfolk. The city family is indeed facing ruin. Especially since the defiant daughter Rosalie has just knocked out a promising money marriage without regard to scandal. The Rosalie is attracted to the Schiermoser heir Franz. His mother already drives the thought of a 'Madame Bäurin' to madness. Everyone experiences a turbulent time of upheaval. The end of the First World War will shake the social fronts as well as the new machine age.