It is August 1945 in Wiesbaden, Germany. With the country in ruins, Anna Klein, displaced and separated from her beloved husband, struggles to support herself and her six-year-old daughter, Amalia. Her job typing forms at the Collecting Point for the US Army's Monuments Men is the only thing keeping her afloat. Charged with securing Nazi-looted art and rebuilding Germany's monuments, the Americans are on the hunt for stolen treasures.

England: 1944. When psychologist Maddie Gresham is sent a mysterious message telling her to report to Trent Park mansion, she wonders how she will be helping the war effort from a stately home. Having signed the official secrets act, she soon finds captured Nazi generals are being detained at the house. Bugged with listening devices in every room, it’s up to Maddie to gain the Nazis’ trust and coax them into giving up information. When Max Weitzler, a Jewish refugee, also arrives at Trent Park with the same mission, Maddie finds herself trapped in a dangerous game of chess.

Vienna, 1937. When beautiful American Kitty becomes engaged to Austrian diplomat Edgar, she finds herself thrown into a very different world in Europe, and soon longs for home. But when the woman designing her wedding dress, Judith, takes Kitty under her wing, she sees the city of Vienna in a new light–a city of culture and music that she can explore with her new friend.

Germany, 1945. As the ground shakes and the air raid sirens wail, Katja holds her tiny baby to her chest. She pictures Karl’s handsome face and kind blue eyes, her breath catching at the thought of him heading back to the front. She must never tell anyone about the letters she delivered for him or the other secret she is hiding....

For Iris, each visit to her mother in St Mabon’s Cove, Cornwall has been the same—a serene escape from the city. But today, as she breaths in the salt air on the doorstep of her beloved childhood home, a heavy weight of anticipation settles over her. Iris knows she’s adopted, but any questions about where she came from have always been shut down by her parents, who can’t bear to revisit the past. Now, Iris can’t stop thinking about what she’s read on the official paperwork: BABY GIRL, FRANCE, 1939 – the year war was declared with Nazi Germany.

When Maggie’s new job takes her from bombed-out London to grand Snowden Hall in the Cotswolds, she’s apprehensive but determined to do her bit for the war effort. She’s also keeping a secret, one she knows would turn opinion against her. Her mother is German: Maggie is related to the enemy. Then her evacuee sister sends her a worrying letter, missing the code they agreed Violet would use to confirm everything was well, and Maggie’s heart sinks.

In an overgrown industrial area of wartime Munich, 27 children hide from the Gestapo, scared and hungry. Their parents have been sent to concentration camps, and they have nowhere to go. Teacher Claudia Kellner discovers the group when she first takes in two homeless victims, risking her own safety by giving them shelter. Meanwhile, Commando Peter Chesham, a spy working for the British, succeeds in entering Third Reich territory. But his top-secret mission is threatened when he discovers the hiding place of the orphans.

1997. Amy Novak has lost the two great loves in her life: her husband, Michael, and her first love, music. With the first anniversary of Michael's death approaching, Amy buries herself in her job as an archivist. And when a newly declassified file lands on her desk, she is astonished to uncover proof that Agent 'Colette' existed—a name spoken only in whispers; an identity so secret that it has never been verified.

When Jeanne uncovers a dusty old box in her father’s garage, her world as she knows it is turned upside down. She has inherited a bookstore in a tiny French village, just outside of Paris, from a mysterious woman named Laurence. Traveling to France to search for answers about the woman her father has kept a secret for years, Jeanne finds the store boarded up, in complete disrepair. Inside, she finds a tiny silver pendant hidden beneath the blackened, scorched floorboards. As Jeanne pieces together Laurence’s incredible story, she discovers a woman whose bravery knew no bounds.

In a different world, Evie Milton would have accepted her fate, married an aristocrat and become the doyenne of one of England’s finest estates, just like her mother. In a different world, Rose Wiley would have married her fiancé, David, established a modest homestead and brought up a brood of babies, just like her mother. But this isn’t a different world, and these women are not their mothers. Rose dreams of a life filled with more than family and duty to her husband—a life of purpose—and Evie dreams of a life far away from her rarefied existence.

June 1940. While her little sister, Rosie, is sent to the UK to keep her safe from the invading German army, Estelle Le Maistre is left behind on Jersey to help her grandmother run the family farm. When the Germans occupy the island, everything changes and Estelle and the islanders must face the reality of life under Nazi rule.

When Katja Heinz secures a job as a typist in Hamburg working for Doctor Viktor’s clinic, she doesn’t expect to be writing up top secret medical records. Doctor Viktor treated soldiers for PTSD at the end of the first world war – and one of the patients was none other than Adolf Hitler.... The notes in his possession declare Hitler unfit for office; exposing such a secret would destroy the Fuhrer's reputation, and perhaps even change the course of the war.

Elisabetta, Marco, and Sandro grow up as the best of friends despite their differences. Elisabetta is a feisty beauty who dreams of becoming a novelist; Marco the brash and athletic son in a family of professional cyclists; and Sandro a Jewish mathematics prodigy, kind-hearted and thoughtful, the son of a lawyer and a doctor. Their friendship blossoms to love, with both Sandro and Marco hoping to win Elisabetta's heart.

It's 1913, and on the surface, Laura Lyons couldn't ask for more out of life - her husband is the superintendent of the New York Public Library, allowing their family to live in an apartment within the grand building, and they are blessed with two children. But headstrong, passionate Laura wants more, and when she takes a leap of faith and applies to the Columbia Journalism School, her world is cracked wide open.

Soline Roussel is well schooled in the business of happy endings. For generations her family has kept an exclusive bridal salon in Paris, where magic is worked with needle and thread. It’s said that the bride who wears a Roussel gown is guaranteed a lifetime of joy. But devastating losses during World War II leave Soline’s world and heart in ruins and her faith in love shaken. She boxes up her memories, stowing them away, along with her broken dreams, determined to forget.