Pearl Harbor, 1941: On the morning of December 7, Ginny is flying her little yellow plane above the sparkling seas when she spots an unknown aircraft closing in on her. She recognises the red symbol of the Japanese fighter planes almost too late. Somehow, she manages to land unscathed, but the choices she is forced to make in the terrible hours that follow have tragic consequences....

She steps into the room and it’s like going back in time. Catapulting her right into the heart of the 1940s. The spindle of the record player frozen and ready to play. The flowery wallpaper faded but intact. A soldier’s uniform pressed and hung on a door, coal still in the fireplace.

Berlin Zoo, 1943: Ten-year-old Adelaide and her newborn sister are orphaned after a devastating night of bombing. Heartbroken and frightened, Adelaide runs to her mother’s closest friend, Katharina Heinroth, and the kind zookeeper takes the two little girls under her protection. As the bombing intensifies, Adelaide tries to shut out the horrors of war by caring for her tiny sister and playing with the adorable baby monkeys. But when Katharina organizes a dangerous operation to enable children and animals to escape the battle-scarred city, something goes wrong.

September 1939. London is in blackout; war has been declared, but Dulcie Treadwell can think only of her heartbreak over American broadcaster, Glenn Reeves, who didn’t say goodbye before leaving for Berlin. Posted to Bletchley Park, Dulcie must concentrate on helping the war effort by cracking the German Enigma codes. The hours are long and the conditions tough, with little recognition from above. Until she breaks her first code. Dulcie finally settles into something she was born to do. But just as she’s proving her worth, a shocking betrayal leads to Dulcie’s brutal dismissal.

London, 1940. Bombs fall and Josie Banks’ world crumbles around her. Her overbearing husband, Stan, is unreachable, called to service. Her home, a ruin of rubble and ash. Josie’s beloved tearoom boss has been killed, and Josie herself is injured, with nothing left and nowhere to go. Evacuated to the English countryside, Josie ends up at the estate of the aristocratic Miss Harcourt, a reluctant host to the survivors of the Blitz. Now a threat looms larger than anyone imagined. And a dangerous secret is about to upend Josie’s life again.