Liverpool, 1941: After German bombs shatter the life Cadi has built for herself in Liverpool, she is more determined than ever to sign up and do h bit. Joining the WAAF also means she is closer to her beau—until Jez is sent thousands of miles from home. While Jez is in Africa, someone from the past starts spreading vicious rumours that could threaten their relationship, and Cadi finds herself torn between keeping secrets and telling the truth to protect those she holds dear.

Claudia Muldoon and her sister, Jenny, live with their parents and their gran in her house in Blodwen Street. Both parents have good jobs and the family assume they are settled for life, but then Grandpa Muldoon has a seizure and begs his son to return to Ireland. In Ireland the Muldoons flourish and the girls love the freedom of their new life, though as they grow up, disadvantages become clear. Claudia has to find work, so both sisters return to Liverpool and to their old pal Danny, who welcomes them back with delight.

Manchester, 1867. Mara longs for a peaceful life free of violence and poverty. But she has married into the O'Hara family, who have a reputation for their drunkenness and quick tempers. Her eldest stepson, Conrad, is the worst of them all - a brute and a criminal who makes Mara's life a misery. But then Conrad is accused of a crime he didn't commit, and Mara is the only one who can prove his innocence. Perhaps this is her chance to finally free her family from his toxic influence.... 

Marianne seems to have everything. She is married to a handsome Naval officer, Neil Sheridan. They have a daughter, Libby, and a beautiful home near Prince's Park in Liverpool. When war comes, Marianne takes war work and moves in with her mother, Mrs Wainwright, and younger sister. Neil disapproves because the Wainwrights live close to the docks, which are bound to be a bombing target, but Marianne is firm.

Yorkshire Dales, 1850. As a terrible storm rages, Annabelle Wallis is shocked to find a distressed young woman at her cottage door, heavy with child. Moments later a baby girl is born. But by dawn, the mother has vanished, leaving behind the helpless child wrapped only in a silk peacock shawl. When news spreads that Lady Eliza Hartley, sister to a wealthy estate owner, has been found dead, Annabelle realises the terrible secret she has stumbled on. Terrified she’ll be blamed for Eliza’s death, Annabelle flees to the slums of York, where she plans to raise the orphan as her own.

Along a blacked-out wartime street a girl is scurrying, a basket on one arm. As sirens begin and bombs crash down, she is filled with panic and, with a heavy heart, abandons her burden in a sheltered doorway, meaning to return later. Even as she disappears in the resulting chaos, the bundle in the basket begins to wail.

In Western Australia, Sarah chuckles as she describes her final will and testament—which will throw the metaphorical cat among the family pigeons—whilst sharing a bottle of wine with her neighbour Thomas as they sit on the terrace of her luxurious waterside home. Six months later, at the age of 95, she peacefully passes on. Married and widowed three times, Sarah has had a great life as a successful businesswoman. Now she's left her Australian house to her two great-nieces—on the condition that they live in it together for a year. 

When Daisy's family lose their croft on the Connemara coast, her Aunt Jane, housekeeper to Dr. and Mrs Venables, offers to take Daisy back to Liverpool.

Liverpool, 1934. Hester Lowe agrees to act as governess to spoiled, self-willed little Lonnie Hetherington-Smith when they leave India to live with Lonnie’s elderly aunt in Shaw Street, Liverpool. Hester speedily realises that her new employer dislikes her niece and means to make life uncomfortable for both of them. Things improve a little when they meet the poor but happy Bailey family, who live in a court off Heyworth Street. Hester likes Dick Bailey very much, but her employer does not permit 'followers', and Lonnie and young Ben Bailey are deadly enemies. 

Miranda Lovage and her mother have a blazing row when Arabella tells her daughter that she can no longer afford their present lifestyle. Miranda goes to bed angry and upset. When she awakes next morning, however, it is to find that her mother has disappeared. Miranda raises the alarm but everyone is baffled, and when searches fail to discover Arabella's whereabouts, Miranda is forced to live with her Aunt Vi and cousin Beth, who resent her presence and treat her badly.

Living on the edge of the beautiful Norfolk Broads with her father, the only ripple in Tess Delamere's calm life is the disturbing dream about her dead mother which haunts her. She yearns to know more, but the arrival of a new stepmother heralds the end of Tess' hopes that her father might divulge the past. As she grows up, Tess slowly starts to put together the pieces herself. But the outbreak of war brings tragedy and upheaval, changing Tess' priorities....

It is 1900, and Adeline Warburton and Arnold Haslington have fallen deeply in love. But though both are from wealthy families, their social status is too far apart for their families to approve of the match. And when Arnold marries another, Adeline’s reaction is immediate and altogether unexpected, as she travels to make a new life in China. But although they are separated by thousands of miles, the consequences of their youthful passion continue to haunt them and their children - Addy’s daughter, Nala, and Arnold’s son, Philip. As the years pass and the children grow, violent forces are set to bring them together, unaware of the secrets from the past that bind them.

It is a cold December night and Sylvie Dugdale is weeping as she walks by the Mersey. She fails to notice an approaching figure, and jumping to one side to avoid collision, she finds herself struggling in the ice-cold river. Constable Brendan O'Hara, just coming off duty, sees the girl's plight and dives in to rescue her. He is dazzled by her beauty but discovers that Sylvie's husband is in prison, and the closeness that Brendan soon longs for is impossible. But he is able to help her escape from Liverpool....

Dympna Byrne lives a simple life with her family on the Connemara coast. She adores her father Micheál, and does her best to help her family by working hard and expecting little. But beneath the surface there are hidden secrets. Dympna’s mother idolises her clever eldest son, yet her attitude to Dympna is puzzling. So when her family find themselves in desperate need of money, it is Dympna who crosses the water to Liverpool to seek a better life. 

One wild night in the 1930s, midwife Patty Peel is called to attend a birth on the opposite side of Liverpool. She pedals off into the storm and delivers a baby girl in a filthy slum dwelling, just as the mother dies. The drunk and violent father tells Patty to get rid of it so she takes the child away, meaning to deliver it to the nearest orphanage. However, Patty spent her entire childhood in an institution, except for the frequent occasions when she ran away, and cannot bear to hand the baby over.