London, 1915. World War I has been raging for over a year, but despite it all Rose Spencer is feeling hopeful about the future. She's in love and planning her wedding to lovely, bicycle-shop owner Charlie. She loves working as a seamstress at the glamorous London's Lyceum Theatre but secretly can't help fantasising about seeing her own designs come to life. And even when she won't believe in her talent, thankfully best friends Joyce and Annie are always around to push her to have faith in her dreams.

1914. Working in a bustling café on London's Shaftesbury Avenue, Joyce Taylor dreams of opening her own restaurant. But when the man she loves enlists in the war and a surprise request comes through from her dying grandmother, Joyce's life gets turned upside down. Struggling to keep the café afloat with her new found responsibilities, it's not long before Joyce starts to feel the pressure might be all too much. Luckily, her supportive friends Annie and Rose are on hand to help.

1914. Growing up on a farm in the country, Annie Cradwell has always dreamt of singing on stage. So when she hears her friend, Joyce, has a room to spare in London, she sets off with best friend Rose for an adventure beyond anything they could have imagined. In London, Annie and Rose stumble into jobs at The Lyceum Theatre. Then, the musical director, Matthew Harris, offers her singing lessons. And Annie starts to wonder - could this be her chance?

When duty calls, East End girl Minnie Wolton isn’t afraid to do her bit. She’s excited to be joining the ATS girls and although she knows life at the barracks will be tough, she’s not one to quit! She just hopes the other girls are all good sorts. With her husband away fighting, Eileen Ruffel is glad of the break from her unhappy marriage. She just wants to make a success of the ATS girls and maybe find happiness too. Along with the other girls, Minnie and Eileen strike up a firm friendship. The training is hard, but they are determined to prove they are the best new recruits.

Lady Joanna Harcourt and her daughter, Sarah, discover their life of luxury at Goodwill House is over. Because with Lord Harcourt away fighting, the Harcourt girls are facing financial ruin. Lady Joanna is terrified of losing their home, but for Sarah, this means her dreams of becoming a doctor are over. Headstrong Sarah isn’t one to quit! War or not, she’s determined to find a way to save her home and follow her dreams - whatever it takes.

Maggie Bailey has not had an easy childhood. Her father, Michael, always too easy with his fists after spending the family’s rent money down the pub. Just sixteen, in love and blinded by promises, Maggie sees marriage to handsome Jack as her great escape. However, she soon finds herself abandoned with a beautiful baby when Jack disappears. Maggie is forced to seek a new life away from the East End of London and finds herself a job at a hotel in Yarmouth.

As war rages, Barbara Sinclair is desperate to escape her unhappy home life. And with the threat of German bombs ever present, Barbara reluctantly agrees to marry John, her childhood friend, who is leaving to join the RAF. But an encounter with Alex Everton, a dashing Spitfire pilot, complicates matters for Barbara. With emotions running high, she begins to question whether she has made a terrible mistake. With the constant threat of death all around her, Barbara must try to find a way to deal with the complexities of her difficult home life and her emotional relationships, too.

Cambridgeshire - March 1939. As the clouds of war begin to gather in Europe, the Talbot family of rural Blackberry Farm will be torn apart, just as so many families all over the world will be. Life will never be the same again. Whilst in London, the Salmons family will feel the pain of parting and loss. Brought together by war, the two families become intertwined and, as the outlook looks bleak, they must draw on each other’s strength to fight through the hard times.

Essex 1941. Unhappy with life at home with her privileged family, Hannah Austen-Bagshaw runs away to join the Land Girls Army, carrying with her a dark and terrible secret. Life on the farm is tough, but when Hannah meets handsome working-class flight lieutenant Jack, they form an immediate friendship. But unbeknownst to Jack, Hannah is sheltering a young German pilot who has crash landed in a nearby field. Torn between her duty and her humanity, Hannah knows she risks being arrested as a traitor, but she cannot see the young pilot suffer.

Liverpool 1950. When Evie Kilgaren takes over the running of the back office at Skinner and Son's haulage yard, she has no idea she is walking into a hive of blackmail, secrets and lies. Her fellow co-worker and childhood nemesis, Susie Blackthorn, is outraged at being demoted and is hell-bent on securing the affections of local heartthrob Danny Harris. Grace Harris, a singer on the D’Angelo transatlantic ocean liners, is returning home, engaged to be married. But Grace is harbouring her own shocking secrets and something valuable her fiancé very desperately wants back.

As war looms in Europe, 18-year-old Jane Shaw runs the household as an unpaid servant on a meagre budget. When tragedy strikes and she loses her beloved younger brother in suspicious circumstances, Jane takes a position in service looking after Ned, a troubled young boy. Here she meets dashing David Heron, Ned's Uncle and they form an immediate attachment until she is dismissed after being accused of stealing a piece of jewellery. Returning home, Jane and her sister, Melia, are soon orphaned and left at the mercy of their Aunt Alice.

Everything can change - in just one day. Flora has always adored her brother Billy. Born just 18 months apart, their childhood was spent like two peas in a pod - no one could separate them. Now, as adults, they remain the best of friends. And as Flora is immersed in family life, Billy is always there to lend a hand. But, in just one day, everything changes. In just one day, Flora’s life falls apart. In just one day, Flora has to learn how to live again.

Kitty and Tom Conlon arrive in Liverpool in July 1916 to claim the house Tom’s great-uncle has bequeathed him in his will. The move to England couldn’t have come at a better time. Dublin is in turmoil following the Easter Uprising and Kitty’s brother is now in prison. The house in Weaver Street is all they hoped for, and after a shaky start with her new neighbours, Kitty believes the world is her oyster. Until that is, Tom is conscripted into the navy. With Tom away, it’s up to Kitty and the women of Weaver Street to get each other through the war.

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. 

Flying instructor Ellie Simpson has grown up a tomboy. She's never had an interest in the latest fashions or finding a husband; her only passion is flying her beloved Tiger Moth. But when war is declared, she is no longer be able to do what she loves most - fly.