July, 1940. Blitz-ridden London: Marnie Fern’s life is torn apart when her grandfather is killed in an air raid. But once she discovers that he’d been working undercover as a radio operative – or pianist – for the Dutch resistance, Marnie knows she must complete his mission – no matter the cost. Nazi-occupied Amsterdam: At the other end of the wireless, fellow pianist Corrie Bakker is caught in a dangerous game of cat-and-mouse as she desperately tries to keep her loved ones out of the line of fire – even if it means sacrificing herself.

Liverpool, 1940. Journalist Ruth Holt is struggling in the terror of the Blitz when her young son is suddenly snatched away in broad daylight. Soon after, the kidnappers’ demands arrive. They are working with the Nazis, and she has no choice but to co-operate, or the authorities will learn that she is harbouring secrets of her own. Ruth’s job gives her access to critical information, and if she does not share it with Britain’s enemies, her child will face the consequences. Desperate, she falsifies information, lying to everyone: her employers, her family and her lover.

When Miriam arrives at a British checkpoint, she is exhausted and hungry. But deep down she knows she is still one of the fortunate ones. One of the few to survive the camps. Having lost her husband and son, Miriam clings to the hope of finding her daughter, Rosa.   

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.

Emerging triumphant from the firing line of war is no easy feat... In war-torn Warsaw, Anna joins the Polish resistance, risking everything for freedom with memories of her fanatical Nazi husband fueling her determination. As she grows close to the resistance, a kind doctor named Mateusz ignites dreams of a different life. But her happiness is shattered when her husband resurfaces. Now, Anna must masquerade as his wife once more to gather vital information.

Since her husband, Josef, joined the Czech resistance three years ago, Anna Dankova has done everything possible to keep her daughter, Ema, safe. But when blonde haired, blue-eyed Ema is ripped from her mother’s arms in the local marketplace by the dreaded Brown Sisters, nurses who were dedicated to Hitler’s cause, Anna is forced to go to new extremes to take back what the Nazis have stolen from her. Going undercover as a devoted German subject eager to prove her worth to the Reich, the former actress takes on a role of a lifetime to find and save her daughter.

France, 1942: When Kasia is told she will be smuggled out of Poland to work as a radio operator with a French Resistance group, she plans to make the dangerous journey across the border alone. But when she meets a mute girl who she names Elodie, in a ghetto in Warsaw on the eve of her departure, she reminds Kasia so strongly of someone she loved–with one brown eye, and one green–that she knows she can’t leave her behind, no matter the risk....

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. 

Italy, 1945. "Where am I"? The young man wakes, bewildered. He sees olive trees against a bright blue sky. A soft voice soothes him. "We saw you fall from your plane. The parachute saved you". He remembers nothing of his life, or the war that has torn the world apart...but where does he belong? England, present day. Antique-shop-owner Susannah wipes away a tear as she tidies her grandmother’s belongings. Elsie’s memories are fading, and every day Susannah feels further away from her only remaining family.

Lily is the ultimate poor little rich girl, abandoned by her parents and sent to the best Swiss boarding school money could buy. Her parents have a society wedding in mind for her but then Lily meets Harry Kohle, an ambitious young writer.

East London, 1938. Nine-year-old Daisy Purbright is a country girl at heart, and together with beloved brother Bobby, they've enjoyed the endless freedoms of rural England. But when her father gambles the family's fortunes on a speculative investment in London's docklands, Daisy and her family are swept up into the intrigue, danger and excitement. The Purbrights desperately attempt to settle to a new life in the East End, but the whisperings of war grow louder. Then Adolf Hitler conducts a paralysing bombardment on London, and war tightens its grip.

Artist Marguerite Segal is recruited by British Intelligence into befriending Etienne Valade, a local priest. Her mission is to persuade him to pass on information from the high-ranking German officers who attend his church: evidence of their war crimes. Connected by a passion for art, Marguerite and Etienne soon fall in love, but their association increasingly puts her at danger of violent reprisals. With his church frequented by Nazis, Etienne is a suspected collaborator, and distrust is high.

On an otherwise ordinary morning in 1943, Helene Hannemann is preparing her five children for the day when the German police arrive at her home. Helene's worst fears come true when the police, under strict orders from the SS, demand that her children and husband, all of Romani heritage, be taken into custody. Though Helene is German and safe from the forces invading her home, she refuses to leave her family - sealing her fate in a way she never could have imagined.

In 1939 Rev. Waitstill Sharp, a young Unitarian minister, and his wife, Martha, a social worker, accepted a mission from the American Unitarian Association: They were to leave their home and young children in Wellesley, Massachusetts, and travel to Prague, Czechoslovakia, to help address the mounting refugee crisis. Armed with only $40,000, the Sharps quickly learned the art of spy craft and covertly sheltered political dissidents and Jews and helped them escape the Nazis.

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.