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.

England, 1944. On a classified Navy base situated atop the cliffs of Dover, telegraph operator Katie Kingston toils day and night intercepting and translating enemy transmissions in Morse Code, hunting for the next piece of information that will give Britain the edge in the ongoing war. But as the entire base quietly prepares for Britain’s most daring operation yet, Katie has more at stake than her fellow telegraphists. Because among the allied forces due to land on the shores of Normandy in Operation Overlord is Special Forces Lt. Ciaran McElroy, an Irishman who has stolen her heart.

In the quiet town of Houghton, Michigan, sixteen-year-old Nancy Harkness discovers a passion that ignites her heart in ways she never expected. The arrival of barnstormer pilots brings more than just the thrill of their daring stunts; it brings the promise of adventure. Nancy vows she will be a pilot someday. Years later, as the dark clouds of World War II gather on the horizon, Nancy’s dreams take a new and daring turn. With unwavering determination, she envisions a squadron of female pilots. Yet, her path is far from clear.

1940, London. When Cordelia accepts the post of head librarian in Silver Town Library, her mother is more than a little disapproving. The East End has high levels of poverty and illiteracy, and her mother says it’s no place for a woman of her status. But Cordelia is determined to make a difference in these times of strife, and along with her colleagues, Jane and Mavis, she begins to help the local community, making sure everyone knows what the library can offer them. And maybe even a romance will blossom.

In Nottingham, England, widow Emma Taylor finds herself in desperate need of a job. She and her beloved daughter Olivia have always managed just fine on their own, but with the legal restrictions prohibiting widows with children from most employment opportunities, she’s left with only one option: persuading the manageress at Boots’ Booklover’s Library to take a chance on her with a job.

Lady Joanna Harcourt and her daughter, Sarah, discover their life of luxury at Goodwill House is over. Because with Lord Harcourt away fighting, the Harcourt girls are facing financial ruin. Lady Joanna is terrified of losing their home, but for Sarah, this means her dreams of becoming a doctor are over. Headstrong Sarah isn’t one to quit! War or not, she’s determined to find a way to save her home and follow her dreams - whatever it takes.

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.

Pearl has given up on her dreams of being a journalist after being denied a promotion because of her gender. Joining the WAAF as a radio telephone operator for Bomber Command, Pearl's new job at RAF Fenthorpe serves two purposes – providing an income for her grandmother, and keeping a close eye on her younger sister, Thea, an instrument repairer at another Lincolnshire bomber station.

Occupied Poland, 1942: Despite the constant presence of German soldiers in her village, Emilia is allowed certain freedoms as a midwife—the most precious is innocently cycling past Nazi checkpoints to the homes of expectant mothers on her rounds. But Emilia has a secret: for years she’s also been visiting the hidden Jewish mothers and working for the resistance…until she is betrayed.

Paris, 1940 German tanks rumble through the streets of Paris, forcing frightened citizens to flee. But not everyone has the luxury to leave. Camille Lacroix, a chambermaid at the world-famous Hôtel Ritz, must stay to support her family back home in Brittany. Desperate to earn money, Camille also acts as a lady’s maid for longtime guest Vivian Miller, a glamorous American widow—and a Nazi sympathizer. Despite her distrust of the woman, Camille turns to Vivian when her friend Rachel Berman needs help getting out of Paris. It’s then that Camille discovers that Vivian is not what she seems.