1940, Italy. Lili and Esti have been best friends since they first met at university. When Esti’s son Theo is born, they become as close as sisters. While a war seethes across borders, life somehow goes on—until Germany invades Italy, and the friends suddenly find themselves in occupied territory. Esti, older and fiercely self-assured, convinces Lili to join the resistance efforts. But when disaster strikes, a critically wounded Esti asks Lili to take a much bigger step: To go on the run with Theo. Protect him while Esti can’t.

Isabelle Shelton has always found comfort in the predictable world of her mother’s dressmaking shop, Mrs. Shelton’s Fashions, while her sister Sylvia turned her back on the family years ago to marry a wealthy doctor whom Izzie detests. When their mother dies unexpectedly, the sisters are stunned to find they’ve jointly inherited the family business. Izzie is determined to buy Sylvia out, but when she’s conscripted into the WAAF, she’s forced to seek Sylvia’s help to keep the shop open.

Amsterdam, 1941. German forces have invaded Amsterdam. As the tension in the city increases, the Dutch Resistance is born. Tormented by what is happening in his city, Christiaan joins the Resistance. He risks everything to shield the oppressed and fight for the freedom of his beloved nation. His brother—Floris—is ruthless and driven to succeed. Promoted to the Bureau of Jewish Affairs, he becomes instrumental in hunting Jews to transport them to the Nazi death camps.

At the imposing iron gates of Auschwitz, twenty-one-year-old Hodaya clings to her mama and papa, her little sister Bayla’s arms around her waist. But when Hodaya is sent one way and her parents the other, a plea to keep her sister safe is the last thing in her mother’s eyes. Hodaya makes a silent promise in return. But Auschwitz is no place for a little girl, and keeping Bayla safe takes every ounce of Hodaya’s strength.

When Works Progress Administration editor Millie Lang finds herself on the wrong end of a potential political scandal, she’s shipped off to Montana to work on the state’s American Guide Series—travel books intended to put the nation’s destitute writers to work. Millie arrives to an eclectic staff claiming their missed deadlines are due to sabotage, possibly from the state’s powerful Copper Kings who don’t want their long and bloody history with union organizers aired. But Millie begins to suspect that the answer might instead lie with the town’s mysterious librarian, Alice Monroe.