When Sophie Weiss boards the SS St Louis, she has no reason to stay in Germany. The Nazis have taken everything from her, and her only hope is escape. But when she meets fellow Jewish refugees Rosa, Hannah and Rachel on board, the friendship they form gives Sophie hope that there can be happiness in her future, after all.

I never expected to have to uproot my family to go live in my parents’ isolated cottage on Lost Lake. It’s twenty miles to the nearest town, an insignificant speck in endless pine forests. Nobody’s lived here for a decade. Now, I pick up a rusty pail from its nest of autumn leaves and turn to my daughter. Suddenly, I recall how I used to help my own mother pick wild strawberries up here as a little girl. Maybe, this isn’t a punishment. Maybe this place will be the making of our family.

Ana Kaminski is pushed through the iron gates of Auschwitz beside her frightened young friend Ester Pasternak. As they reach the front of the line, Ana steps forward and quietly declares herself a midwife--and Ester her assistant. Their arms are tattooed and they’re ordered to the maternity hut. Holding an innocent newborn baby, Ana knows the fate of so many are in her hands and vows to do everything she can to save them.

But while Sophie, a third-year medical student, works long days and nights saving casualties of war at the American hospital, and waits anxiously for news of her fiancé from the front line, her recently widowed twin, Adèle, is determined to enjoy her freedom. Nothing – not the bombs, the curfews or the Nazi officers sidling up to her in nightclubs – can stop her from indulging in the temptations of Parisian society as she accompanies their father to glamorous parties.

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.

Poland, 1943: Please don't do this! Her shrill cry pierces the night air, the screams breaking the silence of the falling snow. But the man she calls to does not turn, vanishing into the darkness with a child clasped in his arms.

Working in the camp’s munitions factory, Adela Rubenstein discovers the underground network fighting against the devastating cruelty all around them. Imprisoned for teaching Jewish orphans in secret for the resistance, she doesn’t hesitate to join the rebellion. Every night on the way back to her hut, she looks up at the stars, the only witness to their plan to blow up the crematoria buildings.

Berlin, 1943: Ava Müller is a proud supporter of the German war effort, working for Joseph Goebbels alongside her father, a high-ranking official in the Reich. With her sister Hanna, a nurse, braving bombing raids to save lives, they are a model Nazi family. Until Ava discovers her parents and Hanna are secretly working for the resistance… Returning to their country home, Ava is shocked to find her childhood friend Eliana Goldman and her family hidden in the attic.

When beautiful, shy Edith married her elegant banker husband, Julius, she believed that their union would be forever. In spite of her humble background, they have loved each other since the minute they met at a dance. As she learns how to behave in the high-society world Julius has opened to her, she is determined to enjoy every moment. But the Nazi party is growing in power, and her marriage comes under increasing strain. Julius is of Jewish origin—and even some of Edith’s closest family believe their relationship is an abomination, demanding she divorce him.

Auschwitz, 1942: Her entire body trembles as she stands in the infirmary and realises the horrifying truth. She’s a nurse, but instead of saving her fellow inmates, she’s about to be ordered to kill them… Surrounded by thick fog from the nearby forest, Orli stumbles from the cattle truck onto the frostbitten grounds of Auschwitz. Betrayed by her own husband for being a German resistance fighter, she has no one left in the world, and this is now her home.

Berlin, 1944. ‘No! Not my child!’ Annaliese screams, her voice breaking as she pounds the window uselessly. But no-one looks up as the man in the SS uniform cradles her precious baby and strides away. She lies unmoving on the threadbare cot, her throat hoarse from long hours of screaming but her tears keep falling. Her heart has been cleaved in two, now the Nazis have taken the only thing she has left–her child. She is utterly powerless against them. But as Annaliese cries herself to sleep, she makes a vow—she will find her precious baby again. Whatever it takes.

With the country on the brink of war, single mother Jean embraces her ten-year-old daughter, Valerie, before she puts her on a train to Somerset alongside hundreds of other evacuees. Jean’s heart breaks as she vows they’ll be together again soon, knowing it’s a promise she might not be able to keep. Wrenched away from her mother and everything familiar, Valerie arrives in Somerset and nervously waits in the village hall to find a host family.

Working in a museum under a false identity is Brigitte’s only hope. Until she meets Isabelle Valette, who confides in hushed tones that she is part of the Resistance. And when her new friend tells her of a train leaving Paris that can take children to safety, Brigitte knows her daughter must be on it, even if it breaks her heart. But getting Sophie onto the train is dangerous. If they are caught smuggling a Jewish child out of Paris, they will be killed. And with the enemy closing in, can Brigitte get her beloved daughter to safety before it is too late?

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....

Wealthy landowner, Hadan Rose, is dying. His daughter, May, rushes to his country estate, Rose Park, with her daughter, Rachel, to nurse him through his final days. In the afternoons, while Hadan sleeps, May tells Rachel about her wartime experiences.