East-End London, 1858. In London's twisting streets, it's hard to tell friend from foe. And for Katherine Martin, arriving back in London after years away, the city is crueller than she remembers. Her eyes opened to the plight of London's poor, Kate is determined to do what she can to help, even if it means defying her parents. In secret, she opens a soup kitchen. But there is a world of criminals within London's poorest alleys. Catching the notice of Harry Trader and his gang, Kate is out of her depth. Until she begins to discover that her true enemies might not be who she thought. 

Alone at Christmas, will she find somewhere to call home? No more than 18 years old, alone and heavily pregnant, Kathleen stumbles through the snow, desperate for somewhere to rest her weary head. As the Christmas bells chime around her, she glimpses a man through the haze before collapsing into his arms.

Number five Kitchener Avenue heralds the start of a new life for the Hope family. For pregnant Miriam, it is a warm, safe environment to bring up her child. For her sister, 14-year-old Barbara, it means independence...and boys. And for Fred, it means the security he craves for his young family. In the lead up to Christmas, the Hopes settle in, and start to make happy memories in their new home. But World War II is round the corner, and this carefree life can't last.

Maureen Jackson is a prisoner of her father's blackmail. Three years ago, she'd been hoping to marry Rory, the man of her dreams. However, after her mother's death, Maureen was left to care for her overbearing father. Now Rory is back in London with his pregnant wife and reminds Maureen of the life that should have been hers. With the war looming, Janet Ashley hopes to marry her sweetheart Mike, but her father refuses to grant them his blessing. Janet finds herself pregnant and her mother Peggy is determined to hold her family together.

Sunny grew in the mother and baby home on Grove Lane, London. The daughter of a wartime nurse and a Polish pilot, she was abandoned by her mother shortly after her birth and taken in by Nan, the warm and gentle proprietor of the home. Never having known her parents, Sunny has always felt like she doesn't quite fit in, but now, at 16 years old, she is ready to find her place in the world. Heading out to start her first job, she finally feels she has some idea of who she wants to be. As 1950s post-war London is changing at a rapid pace, so is Sunny. 

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.

Paradise Row, London. December 1865. Snow is falling fast, and Sally Suggs is working tirelessly to bring in enough money to keep bread on the table. Her father, a skilled rag-and-bone man, has fallen ill, and now Sally has taken up his trade. But this is a man’s world and competition is fierce, and Sally’s rival, Finn Kelly, always seems to be one step ahead. 

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. 

When Sally, Beth, Margaret and Rachel meet at a job interview for the wonderful new store in Oxford Street, they have no idea they will become lifelong friends. When all four girls are lucky enough to be selected as sales staff their exciting new adventure begins. Join them as they overcome heartbreak and grief, find love and happiness and remain united in their friendship, whatever life throws at them.

At the heart of Dover's Market Square lies the Castle's Café. A bustling, homely place run by the formidable Nellie Castle and her six children. Since the scandalous birth of her beloved son 10 years before, Marianne, Nellie's eldest daughter, has preferred to stay in the kitchen, hidden away from the town gossips. Overcome with shame, Marianne has never revealed the name of Donny's father - not even to her own mother. But with World War II just around the corner, Marianne's past catches up with her. And suddenly the lives of the Castle family become a lot more complicated.

Holding the letter in trembling hands, Daisy’s future crumbled before her – the words engraved on her heart forever. The village of Little Creek, the long winter of 1867. The first flakes of snow are falling when Daisy Marshall, secretly engaged to her master's son, finds herself jilted at the altar. Heartbroken, Daisy flees to the small village of Little Creek, nestled on the coast of Essex. There she is warmly welcomed – but the village is poverty-stricken, suffering under a cruel lord of the manor. And when cholera hits, the villagers are truly in dire straits.

December 1930. With the Depression biting deeper, it looks like many children in the East End will wake up to nothing on Christmas morning. Widower Robbie Graham earns just enough to put food on the table for his children, Ben and Ruthie. Local cake shop owner Flo Hawkins can't bear the thought of any child having nothing for Christmas. Along with her sister, Honour, she hatches a plan to bring some festive cheer to the community.

Laura Cannock is on the run. Suspected of killing her bullying husband, his family are on a merciless prowl for revenge. Fleeing from her beloved home of Bolton to Manchester, Laura seeks refuge with her coal merchant uncle. But it soon becomes clear that a roof over her head comes with a price - of the type so unbearable she must escape once more. Destitute and penniless, a stench-ridden housing court in the back streets of the factories is Laura’s only hope of a dwelling - a place where both the filth and the kindness of neighbours overwhelm.

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. 

Having suffered much cruelty at the hands of her father, Isabel Kenton is shocked to hear after his death that he was not her real father. Isabel inherits their house while her twin brother, Mark, is left the family steel works. But when World War I breaks out, Mark joins the RAF, and Isabel must take responsibility for the management of the business. Struggling to keep the business alive, she must also discover who she really is.