For months, Marianne’s resistance network has carried out courageous missions from a remote farmhouse in Southern Provence, aiding the Nazis’ downfall. But one fateful night, they are viciously ambushed as German soldiers storm in, scattering, capturing or killing every last person there. Mourning the loss of her friends, Marianne will need every ounce of courage to survive. Not only has her life as a secret agent been critically compromised, but her heart has been shattered. Because Jack, her darling fiancé and fellow spy, fled in the chaos–and is accused of being a traitor.

Cornwall, England, 1943. When her husband is killed fighting in the navy, grief-stricken Gwenna Devoran tries to fill the void in her life by offering shelter to two Jewish refugees in her farmhouse high on the Cornish cliffs. But at the train station, 10-year-old Lotti is waiting all alone in her neat red coat. Lotti’s mother died protecting her on the journey. Now Gwenna is all this little girl has. Traumatised Lotti won’t speak a word, and when an order comes for German prisoners of war to work the farm, she’s in more danger than ever. What will happen if the Germans find out Lotti is Jewish?

Berlin, 1936. The Landau family are at the heart of their community, running a music shop in Berlin and just trying to survive. But their lives are unravelling as Hitler's power increases and the treatment of Jewish families deteriorates. Eldest daughter, Rachel, fears for her sisters' future and will do anything she can to keep them safe. Will she find hope in the darkness? Paris, 1936. As whispers of war travel over from Europe, American debutante Kay escapes her mother's grasp and travels as a reluctant spy from Paris to Berlin.

In the mountains of Bohemia, Mila, a Romani, works as a maid for an aristocratic Jewish family. They have no idea that she and their son Ben, with his amber eyes and kind smile, are madly in love—it is expressly forbidden. In the arms of one another, Mila and Ben try to forget that their village is close to the German borders—and could be invaded at any second. But as they huddle around a crackling radio, ice runs through their veins as news of the war gets grimmer by the day. 

Thea has never met her grandmother Hedi, so she’s surprised when she receives a call from social services to take the frail old woman home. She’s not sure how Hedi will fit into her new life–the one where she’s left her boyfriend and moved into a run-down cottage miles from the nearest town. And Hedi refuses to talk about her past or why she and Thea’s mother haven’t spoken for more than 30 years. So when Thea spots Hedi’s old suitcase on the table, she can’t resist taking a peak inside.