All her life, Zofia has found comfort in two things during times of hardship: books and her best friend, Janina. But no one could have imagined the horrors of the Nazi occupation in Warsaw. As the bombs rain down and Hitler’s forces loot and destroy the city, Zofia finds that now books are also in need of saving. With the death count rising and persecution intensifying, Zofia jumps to action to save her friend and salvage whatever books she can from the wreckage, hiding them away, and even starting a clandestine book club.

Paris, 1939: The Nazis think Éliane can't understand German. They’re wrong. They think she’s merely cataloging art in a Louvre museum and unaware they’re stealing national treasures for their private collections. They have no idea she’s carefully decoding their notes and smuggling information to the Resistance. But Éliane is playing a dangerous game. Does she dare trust the man she once loved with her secrets, or will he only betray her once again?

1940 - Stasia always found comfort in the idyllic French countryside where she spent her childhood summers, roaming the gardens of an old chateau and finding inspiration for fairy tales full of bravery and adventure. But these days are much darker, and with Nazis storming across Europe, she soon finds herself one of the most hunted agents of the Resistance. The only safe haven she can think of is Chateau de Montissaire. But she’s about to discover that it just may be the center of her biggest mission yet.

Margot and her adoring husband, Jochen, are madly in love. But in Nazi Germany, being in love is the most dangerous act of all. A marriage between Margot, a German woman, and Jochen, a Jewish man, is forbidden under Hitler’s tyrannical rule. Yet when friends cross the street to avoid Margot and her own mother rejects her, she stays loyal to Jochen. When the Gestapo break into their home and steal their belongings, she remains steadfast. And when soldiers arrest Jochen, imprisoning him with countless others, Margot will stop at nothing to save him.

Paris, 1944: The war is nearly over, but for members of the Resistance in occupied France, it is more dangerous than ever before. Twenty-five-year-old Gabby Foucher loathes the Nazis, though as the concierge of 10 rue Royale, she does her best to avoid conflict - unlike her bolder sister Yvette, who finds trouble at every turn.

1940: As the Germans advance upon Paris, young seamstress Estella Bissette is forced to flee everything she's ever known. She's bound for New York City with her signature gold dress, a few francs, and a dream: to make her mark on the world of fashion. Present day: Fabienne Bissette journeys to the Met's annual gala for an exhibit featuring the work of her grandmother - a legend of women's fashion design. But as Fabienne begins to learn more about her beloved grandmother's past, she uncovers a story of tragedy, heartbreak, and family secrets that will dramatically change her own life.

Liverpool, 1935: Raised in a strict Catholic family, Viv Byrne knows what’s expected of her: marry a Catholic man from her working-class neighborhood and have his children. However, when she finds herself pregnant after a fling with Joshua Levinson, a Jewish man with dreams of becoming a famous jazz musician, Viv knows that a swift wedding is the only answer. Her only solace is that marrying Joshua will mean escaping her strict mother’s scrutiny. But when Joshua makes a life-changing choice on their wedding day, Viv is forced once again into the arms of her disapproving family.

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.

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.

1942. Hannah Martel has narrowly escaped Nazi Germany after her fiancé was killed in a pogrom. When her ship bound for America is turned away at port, she has nowhere to go but to her cousin Lily, who lives with her family in Brussels. Fearful for her life, Hannah is desperate to get out of occupied Europe. But with no safe way to leave, she must return to the dangerous underground work she thought she had left behind.