In 1917, after Arlene Favier’s home burns to the ground, taking her father with it, she must find a way to support her mother and younger brother. If she doesn’t succeed, they will all be impoverished. Job opportunities are scarce, but then a daring possibility arises: the American Women’s Hospital needs ambulance drivers to join a trailblazing, all-female team of doctors and nurses bound for war-torn France.

1940. Cora Mayhew came to Paris to search for her birth mother and stayed to work for the resistance movement. When Cora's train is struck by Nazi bombs, the only thoughts on her mind as she staggers from the wreckage are to escape to return to her family, and to post the heart-wrenching letter clutched in her hand. Then a German soldier finds and saves Cora. Max Heller is nothing like she would have expected: kind, good-humoured and selfless. Cora can't help falling in love with him as he helps to plot her escape. 

For months, Marianne’s resistance network has carried out courageous missions from a remote farmhouse in Southern Provence, aiding the Nazis’ downfall. But one fateful night, they are viciously ambushed as German soldiers storm in, scattering, capturing or killing every last person there. Mourning the loss of her friends, Marianne will need every ounce of courage to survive. Not only has her life as a secret agent been critically compromised, but her heart has been shattered. Because Jack, her darling fiancé and fellow spy, fled in the chaos–and is accused of being a traitor.

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.

England, 1941. After three nights of relentless bombing from German aircraft, trained nurse Jo Brooks is told to report to the basement theater of Mill Road Hospital. She goes with a heavy heart, not wanting to leave behind her best friend Moira, who is desperately soothing new mothers on the maternity ward. As Jo arrives safely underground, the ward takes a direct hit. 

Paris, 1939. Hollywood actress Drue Leyton, married to Frenchman Jacques Tartière, lives as an expatriate in love. But when her husband is dispatched to Brittany to work as a liaison for the British military, Drue finds herself alone with her housekeeper, adrift and heartsick in her adopted city. With her career and fame forty-five hundred miles away, Drue accepts an opportunity that will change her life forever. 

Pearl has given up on her dreams of being a journalist after being denied a promotion because of her gender. Joining the WAAF as a radio telephone operator for Bomber Command, Pearl's new job at RAF Fenthorpe serves two purposes – providing an income for her grandmother, and keeping a close eye on her younger sister, Thea, an instrument repairer at another Lincolnshire bomber station.

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.

Emerging triumphant from the firing line of war is no easy feat... In war-torn Warsaw, Anna joins the Polish resistance, risking everything for freedom with memories of her fanatical Nazi husband fueling her determination. As she grows close to the resistance, a kind doctor named Mateusz ignites dreams of a different life. But her happiness is shattered when her husband resurfaces. Now, Anna must masquerade as his wife once more to gather vital information.

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.

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.

Cornwall, England, 1943. When her husband is killed fighting in the navy, grief-stricken Gwenna Devoran tries to fill the void in her life by offering shelter to two Jewish refugees in her farmhouse high on the Cornish cliffs. But at the train station, 10-year-old Lotti is waiting all alone in her neat red coat. Lotti’s mother died protecting her on the journey. Now Gwenna is all this little girl has. Traumatised Lotti won’t speak a word, and when an order comes for German prisoners of war to work the farm, she’s in more danger than ever. What will happen if the Germans find out Lotti is Jewish?

In a world filled with danger, heartbreak, and impossible choices, the blood sisters must navigate through the darkness to find love, redemption, and a chance at survival.

Following a humiliating experience involving the man she thought she’d marry, Iris Tredwick signs up to the Wrens in order to escape and - hopefully - find ‘the right sort’ of man to please her mother. After a bumpy start, Iris manages to befriend outspoken Mary and dreamer Sally as they are sent to their first posting - in Orkney. There she meets engineer Rob, whose flirtatious nature both charms and confounds straight-laced Iris. Much more appropriate for her is local doctor Stewart, if only she felt the same spark for him as she does for Rob.

When beautiful, shy Edith married her elegant banker husband, Julius, she believed that their union would be forever. In spite of her humble background, they have loved each other since the minute they met at a dance. As she learns how to behave in the high-society world Julius has opened to her, she is determined to enjoy every moment. But the Nazi party is growing in power, and her marriage comes under increasing strain. Julius is of Jewish origin—and even some of Edith’s closest family believe their relationship is an abomination, demanding she divorce him.