As the St Clair family prepare for the wedding of their daughter, Clarice, at the great country house of Montmichel, trouble is brewing. Their younger daughter, Helene, became friends with orphaned Annette during the terrible events of the 1871 siege of Paris. Now they are reunited, with Annette working below stairs for Helene's parents. But Annette is hiding a dangerous secret, which Helene has promised to keep at all costs.

After her mother's death, 20-year-old Sophie Ross is left orphaned, with only her erstwhile nursemaid and faithful friend, Hannah, for company. Penniless and with little chance of an income, she looks for work as a governess in London to avoid destitution. But unbeknownst to Sophie, her mother instructed Hannah to post a letter to Trescadinnick House in Cornwall upon her death. The letter will be the catalyst that changes Sophie's life forever as she learns of her mother's doomed romance and family she left behind in Cornwall.  

When Adelaide Anson-Gravetty finds out her father is not the man who raised her, she is both shocked and intrigued. Determined to find out more about her new family, she travels to the convent of Our Lady of Mercy in France to meet her aunt, the Reverend Mother. But when France falls to the German army, Adelaide and the nuns are soon in the thick of a war that threatens both their beliefs and their lives. 

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.

1921. In the sleepy village of Charlton Ambrose, eight ash trees stand as a timeless memorial to the men killed in the Great War. On a dark and chilly night, a ninth tree appears. Who planted it and why? And who was 'the unknown soldier' for whom it is marked? 2001. Eighty years later, the memorial is under threat from developers. Local reporter Rachel Elliott is determined to save it and to solve the mystery of the ninth tree. 

A heartbreaking, enthralling and utterly unforgettable World War 2 story of two young sisters cruelly abandoned by their mother at an orphanage. 1929: four-year-old Etty and eight-year-old Dorothy are abandoned at Blakely Hall orphanage by their mother, never to see her again. With no other family to speak of, the sisters worship their beloved mam - and they are confused and heartbroken to be deserted by her when they need her the most.

Rita and Rosie Stevens are only nine and five years old when their widowed mother marries a violent bully. Under pressure from her new husband, she is persuaded to send the girls to an orphanage. 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, the throwaway children.

Thirteen-year-old Lisa escapes from Nazi Germany on the Kindertransport and arrives in England in August 1939. She can't speak a word of English, and among her meagre belongings is one precious photograph of her family. But when the Blitz blows her new home apart, she wakes up in hospital with no memory of who she is. The authorities give her a new name and despatch her to a children's home. With the war in full swing, what will become of Lisa now?

England, 1937: After a devastating childhood at Blakely Hall Orphanage, 15-year-old Sandra is released. She finds work as a housemaid, finally able to put her past behind her. But the start of World War Two throws the country into turmoil, and her brother, Alf, is sent away to fight, leaving her completely alone. Germany, 1939: Eleven-year-old Frieda is about to board a ship bound for England with her brother, Kurt. But at the last moment, as Frieda stands on the deck crammed with frightened children, she spots her brother jumping off, back to land.

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?

1945 - the war in Europe is over. It should be a time of utter joy and celebration. Most women can't wait for their men to return, but in the small town of Rivenshaw in Lancashire, Judith Crossley fears having her husband back in the house. He'd grown into a bully and a drunkard, and on the occasions he'd come home from leave, he'd hit her. He wasn't a good father, either. Luckily Judith has found an unlikely ally, a friend to turn to - Maynard Esher, from an old aristocratic family on the other side of town.

Three very different women are recruited to the mysterious Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante Osla has the dashing Prince Philip of Greece sending her roses - but she burns to prove herself as more than a society girl, working to translate decoded enemy secrets. Self-made Mab masters the legendary codebreaking machines as she conceals old wounds and the poverty of her East-End London upbringing. And shy local girl Beth is the outsider who trains as one of the Park’s few female cryptanalysts.

Harriett Chirnwell has a perfect life - a husband who loves her, a successful career, and a daughter who is destined to become a doctor just like her. Xara has always lived in Harriet's shadow; her chaotic life with her family on their sheep farm falls far short of her older sister's standards of perfection and prestige. Georgie, the youngest sister and a passionate teacher, is the only one of the three to have left Billawarre. But is her life in Melbourne happy? All three sisters have a different and sometimes strained bond with their mother.

Little Billy, Polly's son, is the light of her life. It's for his sake that she puts up with an unkind mother-in-law and life on an isolated farm. When Billy is knocked down by a car, his father is killed attempting to save his life, and Polly, cast off by her husband's family, is left with a child who may never walk or talk again. Polly turns to her own family for support, but they are unable to outmanoeuvre the malicious Dr Browning-Baker, who is determined to have Billy taken away from his mother, depriving him of the exercises and stimulation that are his only hope. 

Baby Hope, the unfortunate proof of Lady Harvey's adultery, is smuggled out of a privileged aristocratic household to a nearby village. There, her true identity a secret, she grows up in the arms of the poor but loving Renton family.  But the day comes when Hope must pay her way. What could be more natural than being taken into service by the Harveys? However, when she sees something she should not, she is threatened and blackmailed into leaving her beloved Rentons forever.