Marie, a young doctor, settles down on the Ouessant Island. She will be able to win the diffidence of the local population but she will have to fight for her independence after falling in love with an Italian engineer.

Fanfan is a young handsome peasant. He joins the army to escape marriage because a gypsy girl predicted he will get glory and the king's daughter as a wife. But the gypsy girl was in fact Adeline, the daughter of the recruiting officer. Once he has discovered the stratagem, Fanfan refuses to forget this dream and decides to fulfill the destiny of the fake prediction.