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?

In the terrace courtyard of the palazzo overlooking a sparkling bay, the scent of ripening lemons filled the air. His deep brown eyes gazed into hers with determination and longing. "Will you do it? Risk everything and join us?"

Paris, 1943. German soldiers drag me out onto the cobbled street and push me toward the waiting truck. I force myself to face forward as tears stream down my cheeks. If I look back, they’ll know. I can’t let them find my baby girl....

Londoner Madeleine Grant is studying at the Sorbonne in Paris when she marries charismatic French journalist Giles Martin. As they raise their son, Olivier, they hold on to a tenuous promise for the future. Until the thunder of war sets off alarms in France. Staying behind to join the resistance, Giles sends Madeleine and Olivier to the relative safety of England, where Madeleine secures a job teaching French at a secondary school. Yet nowhere is safe. After a devastating twist of fate resulting in the loss of her son, Madeleine accepts a request from the ministry to aid in the war effort.

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.

France, 1942. At the end of the day, the schoolteacher releases her pupils. She checks they have their identity passes and warns them not to stop until the German guards have let them through the barrier that separates occupied France from Free France. As the little ones fly across the border and into their mothers' arms, she breathes a sigh of relief. No one is safe now. Not even the children.

1937. Katya Komarovsky is studying medicine in Glasgow, living among friends and eager to begin her career as a doctor. But when her spendthrift parents announce that they’ve run out of money and are facing ruin—and that she’ll now have to support them by working as a governess in Vienna—the life she’s dreamed of goes up in smoke. Furiously resentful, Katya rages at her wealthy employer, Thor, for stealing her future—and saddling her with twelve-year-old Gretchen, a deeply troubled child who has only a blazing musical talent to redeem her.

Florence, 1943. As the bells toll in the solemn dark streets and enemy soldiers loiter by the city’s beautiful bridges, schoolgirl Gabriella is racked with guilt. She is ashamed of the crush she had on the soldier with raven-black hair, a crush that allowed a secret notebook to fall into the hands of the enemy. Faced with her brother’s haunted eyes and the prospect of never seeing her father again, Gabriella is determined to make things right. She seeks out her old schoolfriend Stefanina, an unlikely member of the Italian resistance with her beautiful curls and scarlet ribbon.

Each morning Livia Moretti makes her way from an apartment overlooking Florence’s famous Duomo to a nearby café, where she drinks espresso and reads the newspaper. To the crowds of tourists who pass by, nothing about Livia will be memorable. She is simply an old lady. They walk on without knowing the part she played in ensuring the future of this beautiful city. And to Livia now, those dark days feel very far away. But today, when she opens the paper, she sees a name she has not heard for a long time. A name that will bring memories flooding back.

In Nazi-occupied Poland, Sofia cannot look her father in the eye. Sofia’s mother, her papa’s cherished wife, is Jewish—how dare he work as a doctor for the SS? She cannot forgive him, even if the bargain was made to spare their lives. In the middle of the night, Isaac emerges from a packed train with hundreds of others. Beneath Auschwitz’s barbed wire, the SS decide prisoners’ fates on the spot—and Isaac is chosen to work. Every breath feels like it could be Isaac’s last, so when he sees a beautiful auburn-haired girl peering out of the farm window, it feels like a dream.

In enemy-occupied Paris, as the locals go to bed starving and defeated by the war, music and laughter spills through the door of a little restaurant, crowded with German soldiers. The owner, Marianne, moves on weary feet between its packed tables, carrying plates of steaming, wholesome food for the enemy officers. Her smile is bright and sparkling, her welcome cordial. Nobody would guess the hatred she hides in her heart. That night, the restaurant closes its doors for the final time.

It was a misty Wednesday morning. Inside the Gestapo headquarters, you could cut the tension with a knife. There was a traitor in their midst: Someone had leaked a list of the SS to the British press. The head of the Gestapo called me into his office. Panelled oak walls, a grand piano in the corner, rugs lining the floor—the place where he ordered executions every day.

1938: Magda has led a sheltered life in her small village until the day she is forced from her home by the invading Nazi army. Torn away from her family and the only place she has ever known, she is offered refuge in an alpine villa owned by brilliant Dr, Tauber and his talented, beautiful wife. But despite having friends in high places, the Jewish Taubers are living on borrowed time. When the Gestapo come to arrest them, Magda is asked to protect something more precious than the silver and jewels they leave behind. Their newborn son Samuel.

London, 1941. The Blitz. When a Royal Navy memo arrives at head office, requesting female recruits to sign up as motorcycle dispatch riders, delivering highly classified orders across the country, three women jump at the chance to sign up for the most dangerous jobs in London.

When an impossibly shy young woman named Judy Morgan finishes her studies in Physics at Cambridge University, it is with dreams of changing the world for the better. Meanwhile, a beautiful, young Jewish woman decides to flee her beloved Austria, changing her name to Hedy Lamarr, and risking everything to get to America, as far away from the Nazi threat as possible.