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. 

Dana and Caitlin meet on the ferry from Ireland, both in search of new lives in Liverpool, having left their secrets behind in Ireland. But Dana is ambitious, and when the opportunity comes to own their own tearoom she persuades her friend to join her. No one is willing to rent property to a couple of girls, so when Caitlin’s new man-friend says he’ll back them, they are delighted. Soon the tearoom is thriving.

After the sudden and brutal breakdown of her marriage, Jenny finds herself alone for the first time in her life when she leaves the comfortable farmhouse with her four-year-old daughter. Taking refuge in a seaside town in North Wales, Jenny finds a room in a boarding house. It's difficult at first, but as she gets to know her fellow residents, she gradually begins to see that life has much more to offer than she could ever have dreamed.

As the worst storm of the century breaks across the Northwest, sweeping through Snowdonia and across the Mersey to burst upon Liverpool, two women, Molly and Ellen, give birth to girls in a Liverpool maternity hospital. Molly lives on a hill farm in Snowdonia while Ellen is married to Sam O'Mara, a dock worker who is quicker with a punch than a kiss. After one punch too many, Ellen throws her husband out and eventually leaves Liverpool to live with Molly. Ellen and her daughter throw themselves into their new life with enthusiasm, unaware that they are being watched by someone hiding in a ruined cottage.

Emmy Dickens lives with her widowed mother in a neat house in neglected Nightingale Court, but Mrs Dickens has always impressed upon her daughter that her main aim in life must be to escape from the court. Emmy sees that marriage is her best way out, and when Peter Wesley, First Officer aboard a cruise ship, asks her to marry him, she is over the moon. Life goes well for the newlyweds; they set up home and start a family. But when Peter is killed and Emmy is left almost penniless, her problems begin.... 

Rose McAllister is waiting for her husband, Steve, to come home. He is a seaman, often drunk and violent. Rose does her best to cope and sees that her daughters, Daisy and Petal, suffer as little as possible. Sensing that war is on the horizon, Steve tries to reform, but on his last night home, he pawns the girls' new dolls to go on a drinking binge. When war is declared, Rose finds a good job but agrees the children must be evacuated. War brings hardship and difficulty for the girls and Rose as they face the destruction of their home and cruelty at the hands of others....  

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. 

Abandoned by their parents and left to fight for themselves, headstrong Rosalind Carey has no choice but to take charge of her younger brothers and sister in Devonshire’s grand Rockwood Castle. But their once much-loved home is crumbling like the family that lives within it. Living hand to mouth and desperate to provide for the estate that depends on them, the Carey family are one debt away from ruin. Until the day comes when the dashing Piers Blanchard appears on their doorstep from Cornwall, claiming he is Rosalind’s distant cousin and that Rockwood Castle is his.

Hull, 1940. Widowed Edie Copeland has just arrived on Exchange Street, heavily pregnant and with heavy suitcase in tow. She left York after tragedy struck to make a fresh start, but she's a stranger to this street, and her new landlord doesn't hesitate to remind her of this, widow or not. Luckily, the neighbours are a little more welcoming and Edie is soon made to feel at home by the Maguires and the Scuttles. As air raids sound and the war feels closer than ever, the community has to stick together. But Edie is hiding something, and she doesn't know how much longer her secret is safe.

Nell Whitaker is 15 when war breaks out and her mother sends her to live with her Auntie Kath in a remote farmhouse on Anglesey. At first Nell hates it, but her friendship with Bryn, who works on the farm whilst waiting for his call-up papers, helps a lot. So when he leaves to join his ship, Nell is counting the days to his return. But her heart is broken when news reaches her that Bryn’s ship has been bombed and he has been drowned. Determined to bury her grief in hard work, Nell finds herself growing closer to Auntie Kath.