England, 1943: Deciding to throw herself into war work, Nancy Callaghan joins the Special Operations Executive in Baker Street. There, she begins solving ‘indecipherables’ – scrambled messages from agents in the field. Then Nancy meets Tom Lockwood, a quiet genius when it comes to coding. Together they come up with the idea of printing codes on silk, so agents can hide them in their clothing to avoid detection by the enemy. Nancy and Tom grow close, and soon she is hopelessly in love. But there is a traitor in Baker Street, and suspicions turn towards Tom.

Rhoda Middleton suspects her husband Peter is having an affair. But when Rhoda tracks the mysterious woman down, she finds she is not his lover after all, but the wife of his wartime best friend, Archie Foster. There is only one problem - Rhoda has never even heard of Archie Foster.

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.

The occupation has taken much from the Cotillard sisters, and as the Germans increase their forces in the seaside town of Boulogne-sur-Mer, Gabriella, Martine and Simone can’t escape the feeling that the walls are closing in. Yet, just as they should be trying to stay under the radar, Martine’s discovery of a British messenger pigeon leads them down a new and dangerous path.

21-year-old Alix is studying in Paris, far away from Sasha, her Serbian father and Leonora, her English mother, as World War Two breaks out. Finding hope even in troubled times, romance sparks with fellow student Raoul; but she soon learns young love can be tumultuous. So, when Steve, a handsome American pilot with Serbian ancestors, enters her life, she can't ignore her feelings toward him. And making a decision will be even harder as both men leave for war.

Born to a French mother and an English father, Charlotte Bray has always felt like an outsider in her Cornish fishing village. She spends her days on her father's fishing boat, helping to feed a nation at war. But the war brings devastation, and her world is forever changed by tragedy. With nothing left to lose, she accepts a mysterious invitation to work for the War Office as a spy. She soon finds herself in Nazi-occupied Paris with a new identity. Charlotte begins working under the sombre but handsome Frenchman Pierre Lesieur. But do his allegiances lie elsewhere?

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.

1941, Poland. Though war rages around her and occupying German forces march steadily onward, 16-year-old Aleksandra has lived her life sheltered from danger. Until one day, she goes to school—never to return. Pushed roughly into a truck with other schoolgirls like her, a single ominous word tells her all she needs to know about her fate: Lebensborn.

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.

Paris, 1941. With Nazi occupation imminent, journalist Elodie Mitchell plans to return home to Chicago. But an unexpected invitation to a Josephine Baker show changes everything. Mistaken for the star, Elodie is whisked backstage, where she uncovers an underground resistance movement hidden beneath the glitz and glamour. Drawn into a whisper network of spies, Elodie accepts a perilous mission: to go undercover as Josephine's cousin and gather vital intelligence.

1944, Germany: After years of hiding from the Nazis, Rachel Epstein and her little sister Mindel are captured by the Gestapo and sent to the concentration camp at Bergen-Belsen. The only ray of light for either girl is that they are together. But on arrival, they are separated. As she’s 17 and deemed an adult, Rachel is sent to work in a brutal factory, whilst four-year-old Mindel is sent into the so-called “star” camp for Jewish prisoners. All on her own, Rachel knows her sister will have no chance of survival - unless she can find someone to take care of her. 

Berlin, 1938. Samuel Weiss and Max von Hofmannsthal were best friends until the cruel antisemitism of Nazi Germany seeped into Berlin and tore their friendship apart. As Max rises in the ranks of the Nazi SS, Sam and his Jewish family find themselves simply struggling to survive.

The war is over, and Germany in ruins. Posted to an Allied-run Hamburg, reporter Georgie Young returns to the country she fled seven years prior – at the onset of the conflict – to find it unrecognisable. Amidst the stark horrors of a bombed-out city crumbling under the weight of millions of displaced souls, she discovers pockets of warmth: a violinist playing amidst the wreckage, couples dancing in the streets, and a nation trying to make amends.

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.

She was in love with an American airman. Decades later, her secret will change another woman's life.