It is two years before the outbreak of World War 1, and the Oakley family are typical of their time. Andrew has been clerk at a City solicitors for twenty years. Alice, his wife, keeps the home fires burning. Their sons plan on becoming skilled apprentices. And Mabel, their daughter, says she would rather die than go into domestic service like her cousin. She is going to go to train as a secretary. Andrew Oakley little imagines, as he sets off for work one February morning, that their lives are about to change in the most dramatic and tragic fashion.

After the Franco-Prussian War and the siege of 1870-71, the St Clair family return to Paris, seeking refuge and security, only to be swept up into the terrible cruelties and violence of the Commune. Here their young daughter, Hélène, falls ill and, in an unlucky twist of fate, becomes separated from her family. Alone and frightened, she has to fend for herself on the war-torn streets. Meanwhile, her two brothers face each other as mortal enemies across the barricades.

Plymouth, 1941. As sirens blare all around, the Shawbrook family take refuge in a packed shelter. Bombs have already begun to fall through the night sky when they realize their infant son, Freddie, has been forgotten in the rush, left to sleep in his crib. Terrified, Vera, his young mother, races to find him and bring him to safety. The next morning, air-raid warden David Shawbrook returns from his watch to find the shelter pulverized, and his family seemingly all dead. Dirty footprints inside their home betray the looters who have rifled through the house.

Germany, 1937. Fear and betrayal stalk the streets. People disappear. Persecution of the Jews has become a national pastime. When Ruth Friedman's husband is arrested by the SS, she is left to fend for herself and her four children. She alone stands as their shield against the Nazis. But where can she go? Where will her family be safe? Ruth must overcome the indifference, hatred and cruelty that surrounds her as she and her family race to escape the advancing Nazi army's final solution.

Dartmouth Circle is quiet and exclusive - just the way its residents want it to stay, especially arch busybody Sheila Colby. When she hears that the house next door to her has been bought for a student and four friends to rent, she is incandescent. Nothing in this outwardly serene little cul-de-sac is quite as it seems - will the arrival of Madeleine 'Mad' Richmond and her friends bring seething tensions and dark secrets bubbling to the surface?

Rita and Rosie Stevens are only nine and five years old when their widowed mother marries a violent bully called Jimmy Randall and has a baby boy by him. Under pressure from her new husband, she is persuaded to send the girls to an orphanage, not knowing that the papers she has signed will entitle them to do what they like with the children. And it is not long before the powers that be decide to send a consignment of orphans to their sister institution in Australia. Among them - without their family's consent or knowledge - are Rita and Rosie.

1920s Germany: Though the world has changed in the wake of the Great War, it is still ruled by men. Even a woman as resourceful and intelligent as Niki Rittenhaus needs alliances in order to survive. Her marriage to Rickard Länger, a movie producer for Berlin's Passport Pictures, seems convenient for them both. When Rickard succumbs to increasing pressure from the Nazis to make propaganda movies, a horrified Niki turns away from her own film aspirations and instead, begins to write.

Vienna 1938: Austria’s leading couturier, Christina Lehmann, sits at the pinnacle of Viennese society. Her lover, the renowned painter Max Hauser, is at the height of his career. But Max harbors a secret, and it is only a matter of time before the Gestapo finds out. The situation takes a dramatic turn on Kristallnacht, when the pogrom against the Austrian Jews escalates and one of Christina’s Jewish seamstresses is brutally murdered.

When the Germans march into Denmark, Baron Henrik Ahlefeldt exchanges his nobility for anonymity, assuming a new identity so he can secretly row messages for the Danish Resistance across the waters to Sweden. American physicist Dr. Else Jensen refuses to leave Copenhagen and abandon her research-her life's dream. While printing resistance newspapers, she hears stories of the movement's legendary Havmand-the merman-and wonders if the mysterious and silent shipyard worker living in the same boardinghouse has something to hide.

Norway, 1940. Liv has lived a quiet life on her family farm, dreaming of a happy life after the war is finally over. But all of her dreams vanish when the Nazi soldiers arrive in her village and a senior officer see something special in her... something that Hitler and the high command in Berlin is desperate to have at any cost. England, 1968. Agnes, although made orphan from the war, has grown up happy in the quiet wealth of the English countryside, raised by her adoring grandfather to be a perfect lady.

Eleanor Hamilton is happily married and mother to a beautiful four-year-old girl, Mabel. Her husband, Edward, is a leading light in the burgeoning Eugenics movement, which is designing the very ideas that will soon be embraced by Hitler. But when Mabel develops debilitating epileptic seizures and Eleanor discovers Edward has been keeping secrets, Eleanor's world fractures. In order to save her daughter, she takes matters into her own hands.

Spring 1946: Best friends Vera Frankel and Edith Ban arrive in Naples. Refugees from Hungary, they managed to escape from a train headed for Auschwitz and spent the rest of the war hiding on an Austrian farm. Now, the two young women are starting new lives abroad. Armed with a letter of recommendation from an American officer, Vera finds work at the United States embassy where she falls in love with Captain Anton Wight. But as Vera and Edith grapple with the aftermath of the war, so too does Anton, and when he suddenly disappears, Vera is forced to change course.

England, 1941: Life has always been cruel to Ethel. Raised in an orphanage by a merciless mistress, she never knew the meaning of love. And now she has fallen for the one man who is forbidden to her - Karl, a German held captive in the local prisoner-of-war camp. He might be the enemy, but he has her heart. When Ethel discovers she’s pregnant, she is labelled a traitor and shunned by all. The love of her life is torn away from her, but she vows to protect their precious daughter. But the unthinkable happens....

Midwife Patience Murphy has a gift: a talent for escorting mothers through the challenges of bringing children into the world. Working in the hardscrabble conditions of Appalachia during the Depression, Patience takes the jobs that no one else wants, helping those most in need - and least likely to pay. She knows a successful midwifery practice must be built on a foundation of openness and trust - but the secrets Patience is keeping are far too intimate and fragile for her to ever let anyone in.

1950. In the wake of the war, Audrey Clarkson leaves her manor house in England for a fresh start in America with her young son. As a widowed war bride, Audrey needs the support of her American in-laws, whom she has never met. But she arrives to find that her longtime friend Eve Dawson has been impersonating her for the past four years. Unraveling this deception will force Audrey and Eve’s secrets - and the complicated history of their friendship - to the surface.