Sarah Jennings knows there’s one place she can go to find some peace and quiet during her difficult divorce. But arriving at her beloved father’s home in the countryside, she finds him unwell and hunched over boxes of files, studying the records from Cedar Hall, the crumbling orphanage in town. He says that hidden behind the wrought iron gates and overgrown ivy are secrets about their family, and he asks for her help.  

London, 1859. After Elizabeth's family is taken by disease, she is taken in by Calvin and Mary, working long hours in their bakery. Life is good until Mary dies, leaving Elizabeth alone with Calvin, where beatings become part of Elizabeth's daily life. As she suffers misery day after day, she dreams of running away but knows she will be brought back, with even more severe punishments.

The last thing Lindy Cook wants to do is leave Yorkshire behind. The countryside is the only home she’s ever known, and its splendid landscapes lift her spirits even amidst trouble, so does Titus, the bright-eyed country boy who’s always been her dear friend. Lindy’s troubles are many. Papa has gone to London for work; Mama is quite unwell, and her two little brothers constantly need to be fed and cared for. With no resources, she has no choice but to pack her little family into a stifling railway carriage headed for a whole new world - a world she doesn’t understand. 

It is 1939, and working-class Evie Bishop has received a scholarship to study mathematics at Oxford when tragedy turns her life upside down. Evie must seek a new future for herself and, inspired to contribute to the war effort, joins the Women’s Auxiliary Air Force as an Ops Room plotter. Posted to a fighter station on the Sussex Coast, Evie befriends two other WAAFs. But the German bombers seem to know more than they should about the base’s operations, and soon Evie, May and Jess are caught up in a world more dangerous than they ever imagined. 

England, 1943: Home is no longer safe for eight-year-old twins Molly and Jacob. Night after night, wailing bombs and screeching planes skim the rooftops overhead. They cradle each other, shivering in terror, not knowing if they'll live to see dawn. Their mother, Martha, has no choice but to evacuate them to the safety of the countryside. At the train station, Martha bites back tears as she says good-bye to her precious children. Knowing she might never see them again, she gives Jacob a letter, pressing the envelope into his hands and telling him to only read it if they are in danger.

Virginia, 1933: Lauren Greenwood was born to look pretty and land a rich husband. For her and her high-society family, it’s easy to forget that America is in the devastating grip of the Great Depression, where children run wild in the streets, endless queues for soup kitchens line sidewalks, and desperation hangs in the air. But when a young servant comes to Lauren, pregnant and begging for help, her world crumbles. Someone she loves is responsible, and when she finds out the shocking truth she must decide: Protect the Greenwood name or be cast out? 

On a summer evening in 1931, Lilly Blackwood glimpses circus lights from the grimy window of her attic bedroom. Lilly isn't allowed to explore the meadows around Blackwood Manor. She's never even ventured beyond her narrow room. Momma insists it's for Lilly's own protection, that people would be afraid if they saw her. But on this unforgettable night, Lilly is taken outside for the first time - and sold to the circus sideshow.

As Hitler’s bombs rain down on a battered and beleaguered Britain, Ruby Shadwell is dealt the most devastating blow - her entire family lost during the Coventry Blitz. Alone and with the city in chaos, Ruby is determined to survive this war and rebuild her life. And a chance encounter with street urchin Tommy gives Ruby just the chance she needs.... Because Tommy brings with him Canadian Sergeant Jean-Paul Clayton. Jean-Paul is drawn to Ruby and wants to help her, but Ruby cannot bear another loss. 

Liverpool, 1941. Troubled by a dark family history and the pain of seeing her country torn apart by war, young June Lavender finds new hope when she takes a job at the Dr Barnardo's children's home. There she meets Lizzie McRae, a little girl who is the spitting image of June's sister, who died tragically years before. Against the matron's wishes, the two girls form an unexpected bond as June tries to get the traumatised orphan to speak.

On October 28, 1940, Mussolini provides Greek Prime Minister Ioannis Metaxas with an ultimatum - either allow Axis forces to occupy their country or face war - and Greece’s response is swift: “Oxi!” they say. “No!” In a small village nestled against the radiant waters of the Aegean Sea, Alexei, the son of a local fisherman, and his best friend Costa - who were both born on the same night eighteen years earlier and have been like brothers ever since - leave their homes, like all the other young men in their village and throughout Greece, to bravely fight for their country.

On a cold night in October 1937, searchlights cut through the darkness around Alcatraz. A prison guard's only daughter - one of the youngest civilians who lives on the island - has gone missing. Tending the warden's greenhouse, convicted bank robber Tommy Capello waits anxiously. Only he knows the truth about the little girl's whereabouts and that both of their lives depend on the search's outcome.

A door slammed and the unmistakable sound of boots came crashing up the hall. Liese held her little daughter’s hand so tightly, the tiny fingers had turned purple. The SS officer’s hand was at Liese’s throat before she saw him move. "I can kill you easily, then I can kill your daughter." He relaxed his grip a little. "Or perhaps I could kill her first?" England, 40 years later. When Karen Cartwright is unexpectedly called home to nurse her ailing father, she goes with a heavy heart. 

September 1939: The conquering Nazis swarm through Warsaw as social worker Irena Sendler watches in dread from her apartment window. Already, the city's poor go hungry. Irena wonders how she will continue to deliver food and supplies to those who need it most, including the forbidden Jews. The answer comes unexpectedly. 

1915. Patrolling is the last thing on the minds of Women's Police Service recruits Annie, Maggie and Poppy right now, because Annie and her fiancé Richard are about to get married. She's been waiting for this day her whole life, but when it finally comes it brings only heartache and Annie doesn't know if she can go on. The influx of soldiers to the capital means that the WPS's work is more important than ever, though, and Annie's country needs her. She and the girls are posted to the bustling heart of the city and she hopes the new job will distract her from her sorrow.

Rev. Johnny Fletcher serves wounded soldiers from the battlefield as a military chaplain during World War II. His forte is spiritual solace in the darkest of times, but his life changes when he performs a public heroic act: facing down an angry mob intent on attacking five young Holocaust survivors. Upon learning they have no homes or families to return to, Fletcher decides to bring them to America.