On the cusp of the Second World War in France, 18-year-old Patricia (Astrid Berges-Frisbey) cuts across the fields to take her well-digger father (Auteuil) his lunch. On the way, she meets a handsome young man, Jacques Mazel (Nicolas Duvauchelle) - a fighter pilot about to be called to the front. They fall madly in love. However their romance is curtailed as Jacques is called to fight in the war, while Patricia finds herself pregnant and in the middle of a rift between her father and Jacques’ upper-class parents (Jean-Pierre Darroussin and Sabine Azéma). The Mazels refuse to acknowledge their grandchild, accusing Patricia of blackmail. But when Jacques is reported missing, will the bond of family triumph over class division?