Cyril Avery is not a real Avery - or at least that's what his adoptive parents tell him. And he never will be. But if he isn't a real Avery, then who is he? Born out of wedlock to a teenage girl cast out from her rural Irish community and adopted by a well-to-do if eccentric Dublin couple via the intervention of a hunchbacked Redemptorist nun, Cyril is adrift in the world, anchored only tenuously by his heartfelt friendship with the infinitely more glamourous and dangerous Julian Woodbead.

As Britain stands alone against a monstrous enemy, the inhabitants of Pearl Street face hardship and heartbreak with courage and humour. The war touches each of them in a different way: for Annie Poulson, a widow, it means never-ending worry when her twin boys are called up and sent to France; Sheila Reilly's husband, Cal, faces the terror of U-Boat attacks; Eileen Costello is liberated from a bitter, loveless marriage when her husband is sent to Egypt.

Clayton Miller's life is a mess. His career as one of the country's best comedy script writers has stalled and his long term girlfriend has left him for his ex best friend and ex writing partner. Just when he thinks his life couldn't get any worse, he commits a spectacularly public fall from grace and with the press hounding him, his agent banishes him to the middle of nowhere until the dust has settled.

Three very different girls sign up as trainee nurses at a big London teaching hospital in 1934. Dora leaves her overcrowded, squalid working-class home for a better life. But has she got what it takes to keep up with other, better-educated girls? And will her hated stepfather ever let her go? Helen is born for the job; her brother is a doctor, her all-powerful mother a hospital trustee. But will Helen’s secret misery be her downfall? An aristocratic rebel, Millie’s carefree attitude will find her up in front of Matron again and again. Will she ever care enough to make a nurse? Or will she go back to the glamorous life she was born to?

Liverpool, 1940. When her childhood sweetheart, Johnny, is killed in action, Maxine Grey loses more than her husband - she loses her best friend. Desperate to make a difference in this awful war, Maxine takes a nursing job at London’s St Thomas’ hospital. She takes comfort in the attentions of a handsome surgeon, but Edwin Blake isn’t all he seems. And as the Blitz descends on the capital, Maxine faces more heartache. When she returns to Liverpool, she harbours a secret.

Liverpool, 1941. Troubled by a dark family history and the pain of seeing her country torn apart by war, young June Lavender finds new hope when she takes a job at the Dr Barnardo's children's home. There she meets Lizzie McRae, a little girl who is the spitting image of June's sister, who died tragically years before. Against the matron's wishes, the two girls form an unexpected bond as June tries to get the traumatised orphan to speak.

The best things in life happen when you least expect them. Nat's husband has just said the six words no one wants to hear - 'I don't love you any more'. Caroline's estranged mother has to move into her house, turning her perfectly ordered world upside down. Living on the same street, these two women couldn't be more different. Until the beloved local community centre is threatened with closure. And when the only way to save it is to form a community choir - none of the Hope Street residents, least of all Nat and Caroline, expect the results....

Lizzie Dixon's life feels as though it's fallen apart. Instead of the marriage proposal she was hoping for from her boyfriend, she is unceremoniously dumped, and her job is about to go the same way. So there's only one option: to go back home to the village she grew up in and to try to start again. Her best friend, Jemma, is delighted Lizzie has come back home, as she has just bought a little cafe, and Lizzie's sewing skills are just what she needs to help get it ready for the grand opening.

Desperate to escape their stepfather’s house, sisters Amy and Lillian stow away aboard a train full of children being evacuated from London and the threat of Hitler’s bombs. Arriving in the seaside town of Worthing, they are taken in by kindly Norah and her husband, Jim. With their future now entrusted to strangers, can the girls finally find a safe harbour in these dark days of war? And will they find the strength to confront what they have been running from, when their past finally catches up with them?

Northern England 1979 - Social worker Elizabeth has finally plucked up the courage to end 14 years of unhappy marriage. Lost and lonely, she buries herself in work to keep her emptiness at bay. Then an unexpected phone call brings troubled teenager Jan to her door and Elizabeth shocks her friends and family by taking the traumatized young woman into her home as a lodger.

In the '60s, Athene Forster was the most glamorous girl of her generation. Nicknamed the Last Deb, she was also beautiful, spoiled, and out of control. When she agreed to marry the gorgeous young heir Douglas Fairley-Hulme, her parents breathed a sigh of relief. But within two years, rumors had begun to circulate about Athene's affair with a young salesman.

Jessamin Wade's husband is dead. She keeps him alive in her imagination, but she thinks she will hear him better if she goes somewhere quieter. Her destination is Glenelk in the Highlands of Scotland. Quickly, she meets the locals: her landlord, Fionnlagh Maccaillin; Maggie, who runs the village shop; and Stan, a frail, old man stricken with grief. Their lives entwining in mysterious ways, can they help each other to move on, or will they always belong to the ghosts that haunt them?

Bow ties are cool...but secrets, not so much. Behind Robert Emeny's cheerfully eccentric exterior lies a young heart battered and bruised by his past. He's taken a job in a village primary school to make a fresh start, and love isn't part of his plans. But then he's knocked for six - literally - by a chance encounter with the uncle of two of his pupils. Sean Grant works in pest control, lives on a council estate, and rides a motorbike. Robert is an ex-public schoolboy from a posh family who drives a classic car.

Thirty years have passed since Greta left Marchmont Hall, a grand and beautiful house nestled in the hills of rural Monmouthshire. But when she returns to the Hall for Christmas she has no recollection of her past association with it – the result of a tragic accident that has blanked out more than two decades of her life. Then, during a walk through the wintry landscape, she stumbles across a grave in the woods and the weathered inscription on the headstone tells her that a little boy is buried here.

Rowan Hill means many things to many people, but to Ellie Hesketh it represents new beginnings. Putting her life back together after a break-up is going to take time, but the crumbling country estate - as much in need of TLC as she is - seems the perfect place to do it. But Ellie is not the only person for whom Rowan Hill is a refuge. There's Will, damaged and complicated, whose secrets almost nobody knows. And Finn, his brother, who's finally decided to stop running from his own past.