Director Amit Gupta teams with Welsh author Owen Sheers to adapt Sheers' gripping novel set in an alternate history where Nazi German has conquered Russia, and Allied forces were defeated during the Battle of Normandy. The year is 1944. The Nazis have occupied areas of Britain, and a small Welsh village is about to awaken to a shocking surprise. All of the men in the village of Olchon have vanished without a trace, including Sarah Lewis' husband Tom, a respected farmer. Could they have left under the shroud of darkness to join the Resistance? As the women nervously ponder the fates of their absent husbands, a German patrol appears in Olchon on a clandestine mission. When the winter weather takes a turn for the worst, the local women and the German troops are forced to rely on each other for survival. As Sarah and German commanding officer Albrecht Wolfram form a fragile alliance, however, the reality of the situation begins to weigh on both the villagers and the soldiers, and the tense situation leads to tragedy for all involved.