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.

Daisy Wilder prefers the company of horses to people, bare feet and salt water to high heels and society parties. Then, in the dizzying aftermath of the attack on Pearl Harbor, Daisy enlists in a top secret program, replacing male soldiers in a war zone for the first time. Under fear of imminent invasion, the WARDs guide pilots into blacked-out airstrips and track unidentified planes across Pacific skies. But not everyone thinks the women are up to the job, and the new recruits must rise above and work side by side despite the resistance and heartache they meet along the way.

Berlin, 1944. ‘It is a great honour to have you here, Herr Hitler.’ Lili doesn’t stumble over the lie, her hand steady as she pours champagne. Everything must be perfect, no one can suspect a thing… Lili Rodenberg and her husband Marius run the Edel, Berlin’s most glamorous hotel. For its wealthy guests, it is an escape from the destruction outside, with its elegant piano bar and fine amber brandy. But Lili is Jewish, a secret she is terrified will end in tragedy for her and their beloved little girl.

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.

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.

Brzeziny, Poland, 1939. Zofia's comfortable lifestyle overturns when her husband, Jabez, who monitors Nazi activity, has gone missing. Rather than fleeing the country with her young son, as she had promised Jabez who is fearing retaliation, she decides to stay. She cannot possibly leave her friend, Aanya. Since their childhood they have amazed fellow Brzeziners that it does not matter that Aanya is Jewish and deaf, and that Zofia is Catholic and hearing. Now, more than ever with war looming, Zofia will do whatever is necessary to protect her family and Aanya.

Berlin, 1943: Ava Müller is a proud supporter of the German war effort, working for Joseph Goebbels alongside her father, a high-ranking official in the Reich. With her sister Hanna, a nurse, braving bombing raids to save lives, they are a model Nazi family. Until Ava discovers her parents and Hanna are secretly working for the resistance… Returning to their country home, Ava is shocked to find her childhood friend Eliana Goldman and her family hidden in the attic.

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.

September 1, 1939: Sixty-year-old Janusz Korczak and the students and teachers at his Dom Sierot Jewish orphanage are outside enjoying a beautiful day in Warsaw. Hours later, their lives are altered forever when the Nazis invade. Suddenly treated as an outcast in his own city, Janusz--a respected leader known for his heroism and teaching--is determined to do whatever it takes to protect the children from the horrors to come.

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.