Wakefield 1870. On the banks of the River Calder, Meg Taylor struggles to care for her younger siblings and sick mother whilst her father is away working as a boatman on the canals. The slums where they live are rife with disease, and Meg longs for a different life, away from the grinding poverty, but she'll never leave her family. But with the canals slowly dying as trade moves to the railways, and with Meg’s father stubbornly holding onto the past, Meg fears her family’s future is going to get even bleaker. If only there was a way she could save them.

After the hard work of being a maid at Wallington Manor in the lead-up to Christmas, Annie is very excited at the prospect of going home to Bethnal Green. She has missed her family, but the money she earns keeps them all afloat. Harriet is from the island of Guernsey and is visiting her aunt at Wallington Manor. When she has to leave for London Annie is asked to look after her. On the train journey a friendship blossoms. And when an accident happens their friendship is made even stronger. A friendship that would see both girls through pain, happiness, marriage and death.

London, 1940. Winnie Berry is at the heart of the community in her pub, The Battersea Tavern. Her door is always open to those in need of a cup of tea and sympathy. Winnie's abusive husband has left, and she finds herself foolishly falling in love with black-market trader Harry Hampton. But Harry is married, and Winnie soon finds herself tied up in his web of secrets. Meanwhile Winnie's son is back in London—not to visit his own child, but to charm the latest barmaid at the Battersea Tavern, which will lead to devastating consequences for the family.

On her deathbed, Lucy Fallow's mother makes her twelve-year-old daughter promise to look after her four younger siblings and keep house for her father and two older brothers. When the Fallow menfolk lose their jobs they take work wherever they can. But it's not long before they are working on the wrong side of the law and under the watchful eye of Tom McKenzie. Meanwhile, through the hardship Lucy begins to form a relationship with Jacob McKenzie, the boy next door, and one evening they dance cheek to cheek in the moonlight and know that one day they will marry.

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. 

Eighteen-year-old Moll Chambers works her fingers to the bone doing all she can to support her family. With an ailing father and a wayward mother, Moll is the only one who can look after her siblings, Bo and Sissy. But Manchester is an increasingly dangerous place to live, overrun with a ferocious rivalry between gangs of so-called 'scuttlers': young men and women bent on a life of violence and crime. And they have her brother in their sights. Soon even Moll can't protect Bo from the lure of the criminal underworld.

Life for Elsie is difficult as she struggles to cope with her alcoholic mother. Caring for her siblings and working long hours at Swift's jam factory in London’s Bermondsey is exhausting. Thankfully her lifelong friendship with Dot helps to smooth over life’s rough edges. When Elsie and Dot meet Millie Swift, they are nervous to be in the presence of the bosses’ daughter. Over time, they are surprised to feel so drawn to her, but should two East End girls be socialising in such circles?

Living hand to mouth ever since her mother’s tragic death, Amelia sells the last of her treasured possessions to avoid being cast out of her home onto London’s streets. Her estranged grandfather unexpectedly bequeaths a small struggling factory making mourning dresses and Amelia dares to dream… Drawing sketches by candlelight, she longs to sew elegant gowns from fine silks and beautiful ribbons for the rich. As the cold winter wind begins to bite, Amelia’s future hangs by a thread – can she keep her hopes alive?

Janie and her husband, James, have a strong, loving marriage. A move from an inner-city slum to a peaceful new estate outside of Bolton should have been a fresh start for them and their three children. But when war is declared and James announces he has signed up, Janie fears it's the beginning of the end. Waving goodbye to their menfolk is a sacrifice that families are making all over the country and Janie does her best to make do, forging friendships in her new community.

It's 1938, and Cadi is chosen to be Rose Queen in the annual Rose Fete. She is thrilled to be treated like royalty for the day. But deep down she is desperate to leave the Welsh mining community where she grew up. When war is declared, Cadi and her best friend, Poppy, see a chance to escape. Cadi leaves behind her parents and local boy Aled, whom she is meant to marry, for Liverpool.

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....

1850. When Opal Sharp finds herself and her younger siblings suddenly orphaned and destitute, she thinks things can get no worse. But soon three of them - including Opal - are struck down with the illness that took their father from them, and her brother Charlie is forced to make an impossible decision. Unable to afford a doctor, he knows the younger children will not survive. So, unbeknownst to Opal, Charlie takes their younger siblings to the workhouse, where he knows they will at least be fed and have a roof over their heads. Opal is heartbroken and struggles to forgive him. 

Bristol, 1939. School leaver Maisie Miles suspects her father, a small-time crook, has an ulterior motive for insisting she gets a job at the W. D. & H. O. Wills tobacco factory but keeps it to herself. She's befriended by effervescent Phyllis Mason and kind-hearted Bridget Milligan who take pity on her and take Maisie under their wing. But beneath their happy-go-lucky exteriors, they all harbour dreams and worries about what the future holds. 

Phoebe Parsons is destitute, disgraced and alone. After her mistress tragically dies, Phoebe is forced back onto the poverty-ridden streets of Manchester by her unforgiving new master. Desperately searching for work as a domestic maid, Phoebe soon discovers her reputation is in ruins. Fearing for her future and haunted by the harshness of her abandonment, Phoebe finds herself living with thieves and drunks in the smog and squalor - until she meets Victor Hayes. 

Taken in by the firm but kind-hearted cook, the young friends can hardly believe their luck. But behind Bracken House’s impressive façade lies a household steeped in troubles and mystery, with residents above and below stairs battling their own demons and dark secrets. Not everyone is happy about the new arrivals, and soon the orphans’ safety is in danger. If they want to stay in the first home any of them have known for years, they must unravel the past and bring hope to the future. Will they succeed? Or will they come to regret ever leaving the mean slum streets they once called home?