When Rosie’s parents were involved in a train accident, her mother was killed and her father left crippled, unable to earn a living and relying on Rosie to keep the wolf from the door. With her mother gone and her sweetheart Adam away in the army, Rosie is lonely. She eagerly awaits the letters from him, but they never come. As she grows more disillusioned, Adam’s best friend Doug goes out of his way to be charming and attentive. Alone and confused, Rosie blossoms under his evil influence.

When heart-broken Sarah Quinn is left to care for her father and siblings when her mother dies, it’s hard to watch their loving dad, Fred, drift into drink and despair. With money tight, Sarah is determined to keep the family together. But they receive a shock when Fred Quinn announces he is to marry Mavis Swindel, the landlady of a boarding house on the edge of the moors. Mavis seems to offer the answer to the family’s problems, and soon they are all moving into her shabby lodgings. It quickly becomes clear that their stepmother has plans for her new family.

Rita Blackthorn’s heart was barren and hard. In all of her life, she had never truly loved. But she had hated. Beneath the loving gaze of her daughter’s soft green eyes, her heart swelled with dark and dangerous emotions. Young Cathy Blackthorn has never experienced any loving response from her mother. It is her beloved Aunt Margaret, with a heart as big and warm as the summer sky, who has been more of a mother than her own could ever be. And when Cathy’s father brings home a London street urchin, Cathy despairs of ever winning her parents’ love.

One winter's night, in the coal-hole in her yard, Rosie finds that a woman sheltering there has been severely beaten by thugs. At a glance, Kathleen looks like an unkempt, aged vagabond who tramps the roads carrying all her worldly possessions in a grubby tapestry bag. Her only friend is the mangy old dog who accompanies her; the sum of her life is in the diaries she so zealously guards. Yet close up, Rosie can see that Kathleen has a gracious beauty – the 'look' of a respectable lady of means.

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. 

From the moment she learns of the stranger's visit, Molly Tattersall is filled with a sense of fear. Then her mother disappears, leaving behind a letter asking Molly to take care of her five brothers and sisters. Molly's wayward father rejects his responsibilities, leaving Molly to choose between the young man she has given her heart to and the family she adores. It is the cruellest decision of her life, with long-reaching and heart-breaking consequences. Only one thing is certain – Molly's life will never be the same again.

In 1975 Lucinda Marsh throws herself in front of a speeding train leaving her 12-year-old daughter Kitty alone, confused and abandoned – save for a selfish aunt, a violent father and her childhood sweetheart Harry Jenkins. When Kitty is sent to an orphanage after the death of her father, she meets Georgie, a lively cockney girl who, through the following difficult years, becomes her loyal friend. Convinced that her feelings for Harry will ruin the brilliant future that lies ahead of him, Kitty turns her back on his love.

The marriage of Marcia and Curt Ratheter seems idyllically happy. As much in love now as on their wedding day, nothing can mar their joy. But one fateful day in 1931, Curt disappears, leaving Marcia her two daughters bereft. Then Barty Bendall admits his love to Marcia. Desperately trying to forget the past, Marcia moves to Blackburn with him, but soon Barty sinks into bad ways, tyrannising the family. He particularly focuses his aggression on Polly, Curt and Marcia’s first-born, blonde as an angel but afflicted since birth with an ominous shadow over her health.

Beth Ward and Tyler Blacklock share a love they know will last forever. But Beth’s mother, Esther, is jealous of the girl’s happiness and seizes an opportunity to be rid of her daughter. Banished in disgrace from the family home, Beth takes the northbound train and alights at Blackburn, friendless and alone. On this day, Fortune smiles, for Beth is taken in by warm-hearted Maisie Armstrong, a widow with two children. Money is scarce, but love abounds in the cosy house on Larkhill, and Beth is content there to await the birth of her child.

'You're everything to me. I'd have to lose my life before I'd lose you.' This is the vow Silas made to Cathleen on the day he asks her to marry him. Throughout their childhood their love has grown stronger and now, in 1900, they start to plan a life together. But a jealous woman is determined to ruin their happiness and uses Silas's father – a good and honest man – to do so, forcing him to make an impossible sacrifice. As a dutiful son, Silas has no choice but to obey his father, and Cathleen must pay the bitter price.

Lizzie Miller worries for her family – money is short in their little house, but her beautiful daughter Ruby vows to give them all a better life. Working as a maid for Mr Banks, Ruby befriends his shy and gentle daughter, Cicely. The two girls hatch a mischievous plan to introduce Ruby to society at a party for the ‘gentry’ of Blackburn, where Ruby meets Luke Arnold, the dissolute heir to his father’s fortunes.

Maureen Bancroft has never learned the art of putting herself first. As a widow with a gentle temperament and humble ways, she’s been easy to take advantage of. All that changes when an unexpected windfall comes her way. Determined to make up for lost time, she decides to take a holiday and, needing a companion, looks up her friend Barbara Hayle. Glamorous, and with a successful career on the stage, Barbara seems to be everything that Maureen is not. But things aren’t as they seem, and what starts out as a nostalgic trip between friends becomes something different altogether.

Despite a deathbed warning from her beloved mother, Phoebe Mulligan has no choice but to throw herself on the mercy of her uncle, Edward. Wrenched from all she holds dear, the tragic young girl is delivered to Blackburn town, where she must live in a household terrorised by the cold, forbidding presence of her mother's brother. Phoebe cannot understand why she is treated so harshly by Edward Dickens. She is not to know the guilty secret that lies in his past, a secret that casts a sinister shadow over his feelings for his lovely niece.

Ada Williams once believed money and power would bring her happiness. But now she is all alone except for her greedy son Peter, who waits only for the day he will inherit her fortune. Ada, however, has a different plan altogether. A few miles away in Blackburn, the Bolton family may be poor – but the love they share means they can overcome almost any adversity. But no one could foresee the shocking events of Christmas night 1932, which split the family asunder, leaving Larry crippled and the twins, Ellie and Betsy, in a foster home.

In a village in Wiltshire, just off a busy road, Larch Tree Lane winds slowly up a low hill. Among the residents is Maggie Hatherall, full of life despite her advancing years, who worries what she is going to do with her 200-year-old home. Lucia Grey has escaped a bad marriage but her ex is reluctant to let her start a new life free of him. And for architect Corin Drayton, an unexpected inheritance is the start of a complicated family wrangle. From the cottages and farms to the local shop, pub and old manor house, the residents' lives are set to intertwine and relationships bloom.