Søndreø is a small, peaceful island in one of Denmark's fjords, owned and run by the old farmer Lars Søndervold and his son Søren. But times are hard, and everything is not going as it should. The greedy, bragging merchant Anders Lundrup has used all means to gain possession of the island, and one fine day Søren and his old father must leave their ancestral farm and the island. Søren swears an expensive oath - he will earn so much money that he can one day buy the farm and the island back, and at the same time he swears revenge on Anders Lundrup.