At the heart of Dover's Market Square lies the Castle's Café. A bustling, homely place run by the formidable Nellie Castle and her six children. Since the scandalous birth of her beloved son 10 years before, Marianne, Nellie's eldest daughter, has preferred to stay in the kitchen, hidden away from the town gossips. Overcome with shame, Marianne has never revealed the name of Donny's father - not even to her own mother. But with World War II just around the corner, Marianne's past catches up with her. And suddenly the lives of the Castle family become a lot more complicated.

Dachau, 1942. Emilie has been told she's here to nurse evil men. But the first patient she sees in the cold, dark room is hauntingly familiar. Her first love is not wicked. He couldn't be. What is he doing here? Emilie's heart stops as she takes in her childhood sweetheart hunched in a tattered prisoners uniform, the light lost from his face. Her new husband, Otto, said this was a camp for criminals. He should know, he's the doctor. But Danner would never have broken the law.

Five years after the highly publicized trial of Klaus Barbie, the “Butcher of Lyon,” law student Valérie Portheret began her doctoral research into the 108 children who disappeared from Vénissieux fifty years earlier, children who somehow managed to escape deportation and certain death in the German concentration camps. She soon discovers that their rescue was no unexplainable miracle.

Occupied France, 1940. When the staff at a field hospital draw straws to find out who will join the evacuation from Dunkirk, Nurse Cate is left behind. But when the Nazis arrive to claim prisoners of war, she takes her chance and flees into the night, taking one patient with her. Fifty miles away, the surrendering soldiers of the Royal Norfolk Regiment are shot dead by the advancing Germans. Beneath the pile of bodies two men survive, crawling to the safety of a nearby farmhouse, where sisters Elise and Adelaide risk their lives to take them in.

On one extraordinary day in 1940, Miriam Talan’s comfortable life is shattered. While she gives birth to her second child, a son she and her husband, Max, name Monya, the Soviets invade the Baltic state of Latvia and occupy the capital city of Riga, her home. Because the Talans are Jewish, the Soviets confiscate Max’s business and the family’s house and bank accounts, leaving them with nothing.

In the summer of 1940, ambitious young American journalist Ruby Sutton gets her big break: the chance to report on the European war as a staff writer for Picture Weekly newsmagazine in London. She jumps at the chance, for it's an opportunity not only to prove herself, but also to start fresh in a city and country that know nothing of her humble origins. But life in besieged Britain tests Ruby in ways she never imagined.

Maisie Dobbs got her start as a maid in an aristocratic London household when she was thirteen. Her employer, suffragette Lady Rowan Compton, soon became her patron, taking the remarkably bright youngster under her wing. Lady Rowan’s friend, Maurice Blanche, often retained as an investigator by the European elite, recognized Maisie’s intuitive gifts. The outbreak of war changed everything. Ten years after the Armistice, in the spring of 1929, Maisie sets out on her own as a private investigator, one who has learned that coincidences are meaningful, and truth elusive.

Summer 1940: Hedy Bercu fled Vienna two years ago. Now she watches the skies over Jersey for German planes, convinced that an invasion is imminent. When it finally comes, there is no counterattack from Allied forces - the Channel Islands are simply not worth defending. Most islanders and occupying forces settle into an uneasy coexistence, but for Hedy, the situation is perilously different. For Hedy is Jewish — a fact that could mean deportation, or worse.

In the midst of World War II, an English musician, Norah Chambers, places her eight-year-old daughter Sally on a ship leaving Singapore, desperate to keep her safe from the Japanese army as they move down through the Pacific. Norah remains to care for her husband and elderly parents, knowing she may never see her child again. Sister Nesta James, a Welsh Australian nurse, has enlisted to tend to Allied troops. But as Singapore falls to the Japanese she joins the terrified cargo of people, including the heartbroken Norah, crammed aboard the Vyner Brooke merchant ship.

Champagne, 1939. Gabrielle Leblanc Dupree is taking her family's future into her hands. While she should be preparing for a lavish party to celebrate two centuries of champagne making, she secretly hides Chateau Fouché-Leblanc's most precious vintages behind a fake wall in the cellar in preparation for the looming war. But when she joins the resistance, the coveted champagne isn't the most dangerous secret her cellar must conceal.