With her family struggling amidst the nightly bombing raids in London’s East End, Ida Brogan is doing her very best to keep their spirits up. The Blitz has hit the Brogans hard, and rationing is more challenging than ever, but they are doing all they can to help the war effort. When Ida’s oldest friend Ellen returns to town, sick and in dire need of help, it is to Ida that she turns. But Ellen carries a secret, one that threatens not only Ida’s marriage but the entire foundation of the Brogan family. Can Ida let go of the past and see a way to forgive her friend? 

With Christmas approaching, the Brogan family of London's East End are braving the horrors of the Blitz. With the men away fighting for King and Country and the ever-present dangers of the German Luftwaffe's nightly reign of death and destruction, the family must do all they can to keep a stiff upper lip. For Jo, the youngest of the Brogan sisters, the perils of war also offer a newfound freedom. Jo falls in love with Tommy, a man known for his dangerous reputation as much as his charm. 

Oxford Street, London 1915. Sally Harper quietly battles to keep Harpers afloat in the difficult days of the war, whilst husband Ben is working all hours for the War Office. Beth Burrow is fighting concern for her husband, Jack, now at sea with the Merchant Navy, and the fear she may never see him again and be blessed with a child. Driven to exhaustion, Maggie Gibbs, is now working as a nursing assistant on the battlefields in France. With the everyday horrors of the casualties of war to contend with she suffers her own personal tragedy when her fiancé's plane ditches in the sea.

It's 1939, and the Brogan family of London's East End are ready to show Hitler what for. But things don't seem so rosy when rationing, evacuation and air raids start to put this larger-than-life family to the test. When a mysterious young man arrives at the Brogans' local parish church, he provides just the dazzling distraction they need - and, for eldest daughter Mattie, the promise of more than she'd ever wished for. But as the pair fall deeper in love, they are drawn into secret dangers, rife on the very London streets they call home.

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.

1949. Peggy and Able Ronoscki's seaside cafe in Devon is thriving, and their twins, Fay and Freddie, are growing up fast. To pursue her daughter’s destiny, Fay must train in London and Peggy is faced with a dilemma of moving the family back to London once more. Meanwhile, Peggy’s elder daughter, Janet, has her own troubles. She fears her husband is having an affair and is desperately unhappy. Peggy is torn two ways and can only hope that a reunion with her friends at Christmas can help resolve her problems. 

Liverpool, 1943. For Bella Rogers, life is looking up. She loves performing with The Bryant Sisters, the trio of singers who have become the country’s sweethearts, putting a smile on the faces of the brave boys fighting the Nazis. But then tragedy strikes when a telegram arrives: Bella’s beloved father has been killed in France. 

In Australia, Simone has been widowed for four years and is ready to make a more interesting life. Her friends are driving her mad introducing her to eligible men; her busy daughters are just the opposite, wanting her available for babysitting. When she is offered a house swap with a couple in the UK she takes it, not without some trepidation. In the UK, Russ has just taken possession of his new house and wants only peace and quiet after a few months of rehab following a serious injury. Can these two help one another avoid meddling friends and relatives and build new lives?

In February, 1922, at the western-most entrance to Victoria Station in Manchester, a massive plaque was unveiled. Beneath a vast tiled map showing the lines of the Lancashire and Yorkshire Railway network, a series of seven bronze panels recorded the names of the men of the Lancashire and Yorkshire Railway who gave their lives for King and Country in the Great War - a total of 1,460 names. In March, 1940, a group of women of varying ages and backgrounds stands in front of the memorial, ready to do its bit in this new World War.... 

Keara Michaels doesn't want to leave her family in Ireland, but fate sends her first to Lancashire, then across the sea to Australia, pregnant and penniless. And Theo Mullane, the man who loves her, is married, with an ailing baby son, so cannot follow her as he longs to. Mark Gibson leaves Lancashire to avoid marriage. But gold prospecting is a dangerous pursuit, and when his gentle young wife dies in childbirth, his father-in-law kidnaps the baby. So Mark runs away again, this time to Western Australia, where he employs Keara in his country inn.

The shop girls of Harpers Emporium on Oxford Street are happy in their work, and their lives are moving on at quite a pace. United by the suffragette cause and now living under one roof, some will find love and marriage whilst others experience heartache and tears. Harpers is the bond that holds them together, bringing strength through hardship and pain and friendship and love.

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.

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. 

The East End of London has been devastated by the Blitz and the people are struggling to come to terms with their ravaged city. Rationing bites ever deeper, and and everything that makes life better is in short supply. For the district nurses, the challenges are tougher than ever. Gladys loves her work in the Civil Nursing Reserve, but just when she needs to rely on her sister at home to help out with the chores, she turns into a handful of trouble. Edith is learning to cope with her boyfriend's injuries after Dunkirk but will she have to choose between her love for him and her career?

1941: It takes strength to work on the docks, but the war demands all hands on deck, and the women are doing their best to fill the gap. Rosie is flourishing in her role as head welder while still keeping her double life a secret. But a dashing detective is forcing Rosie to choose between love and her duty. Gloria is hiding her own little secret - one that, if found out, could threaten not only her job but her life.