Twenty-five years after the end of the war, an aging Noah Ainsworth is reflecting on his life during those perilous, exhilarating years as a British SOE operative in occupied France --- in particular the agent who saved his life during a mission gone wrong. Noah's daughter Charlotte begins a search for answers. What follows is the story of two ordinary women --- Chloe and Fleur --- who transformed into fearless spies on foreign soil. But as Charlotte unravels the heroic exploits of these women and their connection to Noah, she inadvertently stumbles upon evidence of a double agent lurking disturbingly close to home, drawing her into a treacherous web of secrets and unearthing a shocking story from those final days of the war.

Berlin, Germany, 1930. When the Nazis rise to power, Sofie von Meyer Rhodes and her academic husband benefit from the military ambitions of Germany’s newly elected chancellor when Jürgen is offered a high-level position in their burgeoning rocket program. Although they fiercely oppose Hitler’s radical views, it soon becomes clear that if Jürgen does not accept the job, they will lose their lives. Huntsville, Alabama, 1950. Twenty years later, Jürgen is one of many German scientists pardoned and granted a position in America’s space program. But when rumors about the Rhodes family’s affiliation with the Nazi party spread among her new American neighbors, idle gossip turns to bitter rage, and the act of violence that results tears apart a family.

Young Elzbieta Rabinek has no fondness for the Germans who patrol Warsaw’s streets and impose their curfews, but has never given much thought to what goes on behind the walls that contain her Jewish neighbors. She knows all too well about German brutality --- and that it's the reason she must conceal her true identity. But in befriending Sara, a nurse who shares her apartment floor, Elzbieta makes a discovery that propels her into a dangerous world of deception and heroism. Using Sara's credentials to smuggle children out of the ghetto brings Elzbieta face to face with the reality of the war behind its walls, and to the plight of the Gorka family, who must make the impossible decision to give up their newborn daughter or watch her starve.

With her father recently moved to a care facility, Beth Walsh volunteers to clear out the family home and is surprised to discover the door to her childhood playroom padlocked. She’s even more shocked at what’s behind it --- a hoarder’s mess of her father’s paintings, mounds of discarded papers and miscellaneous junk in the otherwise fastidiously tidy house. As she picks through the clutter, she finds a loose journal entry in what appears to be her late mother’s handwriting. Beth and her siblings grew up believing their mother died in a car accident when they were little more than toddlers, but this note suggests something much darker. Beth soon pieces together a disturbing portrait of a woman suffering from postpartum depression and a husband who bears little resemblance to the loving father Beth and her siblings know.

Since she was nine years old, Alina Dziak knew she would marry her best friend, Tomasz. Now 15 and engaged, Alina is unconcerned by reports of Nazi soldiers at the Polish border and dreams instead of the day Tomasz returns from college in Warsaw so they can be married. But little by little, injustice by brutal injustice, the Nazi occupation takes hold, and Alina’s tiny rural village is divided by fear and hate. Then, as the fabric of their lives is slowly picked apart, Tomasz disappears. Where Alina used to measure time between visits from her beloved, now she measures the spaces between hope and despair, waiting for word from Tomasz and avoiding the attentions of the soldiers who patrol her parents’ farm.

Annie is a drug addict and a thief, and is in trouble again. Her sister Lexie has always helped her, but this time, she’s not just strung out --- she’s pregnant and in premature labor. If she goes to the hospital, she’ll lose custody of her baby and maybe even go to prison. But the alternative is unthinkable. As the weeks unfold, Lexie finds herself caring for her fragile newborn niece while her carefully ordered life is collapsing around her. She’s in danger of losing her job, and her fiancé only has so much patience for Annie’s drama. In court-ordered rehab, Annie attempts to halt her downward spiral by confronting long-buried secrets from the sisters’ childhoods, ghosts that Lexie doesn’t want to face.