August 1940: As the Luftwaffe swarm over Liverpool, Shane Quinn decides to move his family back to the safety of Ireland. But his only child, the beautiful Dana, would rather stay and serve her country than flee to a foreign land. Determined to make it on her own, she joins the WAAF with newfound pals Patty and Lucy. There’s plenty of excitement to be had on a RAF station, even a chance or two at love.

Bristol 1936. Jenny Crawford has resigned herself to a loveless marriage living hand to mouth with their two children. Like many others, husband Roy struggles to find work at the docks but a chance encounter turns the family's fortunes around. Not only does he get regular work but they are also allocated a council house on Coronation Close on the outskirts of the city. Jenny and the children are overjoyed, this is the fresh start she could only ever dream of. But trouble feels never too far away.

In the heart of Dressmakers' Alley, Madame Pauline’s sweatshop is rumoured to be a particularly unpleasant place to work. Filled with seamstresses paid a pittance who turn a blind eye to what darker activities are hidden behind locked doors. Young Winnie Brown is keen to prove her value to the Women Movement and secures a job as a seamstress to investigate the whispers of some unsavoury goings on. Her concerns are soon justified when she hears a desperate cry for help.

Hampshire, 1913. Amidst the glitz and glamour of England’s High Society, Sarah Trenwith is more of a wallflower living in the shadow of her beautiful sister Marianne. But as the war approaches Sarah will have to step out of the place society and her family have assigned her if she’s to do her part and claim the love she always dreamed of from afar.

Laura Collins is struggling to make a good life for her daughters, Tess and Tina. So when she is offered a good job, with accommodation, she is delighted. Life is very different for the Brewsters who live on Manor Farm in Herefordshire. Danny plans to marry one day so that he can take over the farm, whilst his cousin, Phil, longs to escape the world of farming as soon as possible. War changes all their plans.

It is 1937, and Alice, Edith and Marg continue to face hardships every day, growing up on one of the poorest streets in Blackpool. Penniless, their friendship has helped them survive this far, but it'll take more than that to see them through the dark days ahead. Alice is coping with a violent father. Marg is left reeling after a dark secret about her birth comes to light and threatens to destroy the life she knows, and Edith is fighting to protect her alcoholic mother from the shame of their neighbours and keep her brother on the straight and narrow. 

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.

It wasn't a privileged childhood, but it was a happy one. Sybil and Lizzie Cream, brought up in a fisherman's cottage on the edge of the cold North Sea, were content to leave privilege where it belonged: with their friends the Wintertons. Christina Winterton was the same age as Sybil, and the two girls were inseparable, but it was Lizzie whom Ralph Winterton, three years older, found irresistible. Then war came to East Anglia, and so did Manchester-born Fenn Kitzmann, now of the American Army Air Force.

Blackpool, 1893. Tilly has come a long way from the run-down tenements in which she grew up. She has a small but comfortable home, a loving, handsome husband, two beautiful little'uns - Babs and Beth - and she earns herself a little money weaving wicker baskets. Life is good. Until the day Tilly returns home to find a policeman standing on her doorstep. Her Arthur won't be coming home tonight - nor any night - having fallen to his death whilst working on Blackpool tower. Suddenly Tilly is her daughters' sole protector, and she's never felt more alone.

Emmy Dickens lives with her widowed mother in a neat house in neglected Nightingale Court, but Mrs Dickens has always impressed upon her daughter that her main aim in life must be to escape from the court. Emmy sees that marriage is her best way out, and when Peter Wesley, First Officer aboard a cruise ship, asks her to marry him, she is over the moon. Life goes well for the newlyweds; they set up home and start a family. But when Peter is killed and Emmy is left almost penniless, her problems begin.... 

Hull, 1940. Widowed Edie Copeland has just arrived on Exchange Street, heavily pregnant and with heavy suitcase in tow. She left York after tragedy struck to make a fresh start, but she's a stranger to this street, and her new landlord doesn't hesitate to remind her of this, widow or not. Luckily, the neighbours are a little more welcoming and Edie is soon made to feel at home by the Maguires and the Scuttles. As air raids sound and the war feels closer than ever, the community has to stick together. But Edie is hiding something, and she doesn't know how much longer her secret is safe.

Leaving Liverpool behind, Libby Andrews embarks on a transformative journey to London with her newfound friend Suzy. Amidst the bustling city streets, they find Libby's parents' cherished stall on Petticoat Lane has been taken over and run into the ground by Libby's conniving uncle. Libby is determined to reclaim what rightfully belongs to her and with Suzy's support, she is able to bring the stall back to the way it used to be. But when they unravel a long-held family secret, unearthing the truth about her mother's past, will it shatter the bright future that lies ahead for Libby?

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....

1940, Liverpool: Alice Turner and her best friend, Millie Markham, work for the war effort at Rootes munitions factory, making shell caps and Halifax bombers. Alice’s sweetheart, Terry, is home from the front for a brief period of leave. But the honeymoon is soon over. Terry must go back to the dangers of Nazi-occupied France, and the ever-present air raid sirens quickly bring Alice back down to earth. 

Autumn 1941, and as female conscription looms, three women arrive at the Bell Works Factory in Hucknall to work on the Spitfire production line. Lily soon realises her real dream is to pilot the planes; Edna longs to be reunited with her evacuee daughter, but soon discovers she has a much bigger problem; and Jeannie fears the worst after weeks of no news from her fiancé. Despite all the heartache, with a bit of festive cheer and 'can do' attitude, The Engine Girls will pull together and do all they can to ensure Britain's safe for the New Year.