1944. After the fall of Russia and the failed D-Day landings, half of Britain is occupied . . . Young farmer's wife Sarah Lewis wakes to find her husband has disappeared, along with all of the men from her remote Welsh village.
A German patrol arrives in the valley, the purpose of their mission a mystery. Sarah begins a faltering acquaintance with the patrol's commanding officer, Albrecht, and it is to her that he reveals the purpose of his mission - to claim an extraordinary medieval art treasure that lies hidden in the valley. . . .