In 1938, English spy Harry Taverner and Jewish photographer Anna Cantrell spend the night dancing at Berlin's most elegant hotel. Anna is married to another man, the Nazi shadow is rising over Europe and neither expects to ever meet again. But once peace is declared, they reunite in the ruins of Berlin, where Anna is searching for her missing children. With the blockade tightening and the Soviets set on conquest, Harry and Anna walk a treacherous line between love and duty, integrity and survival, loyalty and betrayal. And as the Cold War dawns, they are bound together by a secret that will only be revealed decades later, as Berlin finds itself on the cusp of another transformation...