1944. After the fall of Russia & the failed D-Day landings half of Britain is occupied... Young farmers 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 patrols commanding officer Albrecht & 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. But as the pressure of the war beyond presses in on this isolated community this fragile state of harmony is increasingly threatened.