London, 1941. The Blitz. When a Royal Navy memo arrives at head office, requesting female recruits to sign up as motorcycle dispatch riders, delivering highly classified orders across the country, three women jump at the chance to sign up for the most dangerous jobs in London.

When Grace, April, and Poppy join the US Army Nurse Corps, they see it as little more than an adventure, one made all the better by their first station: Pearl Harbor, Hawaii. Joined at the hip, idealistic Grace, exuberant Poppy, and brave but haunted April frolic in the sun, attending parties, flirting with the handsome soldiers, and becoming fast friends with seasoned nurse Eva. Like the Hawaiian sun, their future seems warm and bright - until the infamous morning of December 7.

Occupied Poland, 1942: Despite the constant presence of German soldiers in her village, Emilia is allowed certain freedoms as a midwife—the most precious is innocently cycling past Nazi checkpoints to the homes of expectant mothers on her rounds. But Emilia has a secret: for years she’s also been visiting the hidden Jewish mothers and working for the resistance…until she is betrayed.

Occupied France, 1940. When the staff at a field hospital draw straws to find out who will join the evacuation from Dunkirk, Nurse Cate is left behind. But when the Nazis arrive to claim prisoners of war, she takes her chance and flees into the night, taking one patient with her. Fifty miles away, the surrendering soldiers of the Royal Norfolk Regiment are shot dead by the advancing Germans. Beneath the pile of bodies two men survive, crawling to the safety of a nearby farmhouse, where sisters Elise and Adelaide risk their lives to take them in. 

London, 1944. Two young nurses meet at a train station with a common purpose: to join the war effort. Scarlet longs for the chance to find her missing fiancé, Thomas, and to prove to her family - and to herself - that she's stronger than everybody thinks. Nursing is in Ellie's blood, but her humble background is vastly different from Scarlet's privileged upbringing. Though Ellie puts on a brave face, she's just as nervous as Scarlet about what awaits them in France.

When journalist Ella Franks is unmasked as a woman writing under a male pseudonym, she loses her job. But having risked everything to write, she refuses to be silenced and leaps at the chance to become a correspondent in war-torn France. Already entrenched in the thoroughly male arena of war reporting is feisty American photojournalist Danni Bradford. Together with her best friend and partner, Andy, she is determined to cover the events unfolding in Normandy. And to discover the whereabouts of Andy’s sister, who has followed a lover into the French Resistance.

When Hazel is given the chance to parachute into Nazi-occupied France, she seizes the opportunity to do more for the British war effort than file paperwork. Alongside her childhood friend, French-born Rose, she quickly rises up the ranks of the freedom fighters. For Rose, the Resistance is a link to her late husband, and a way to move forward without him. What starts out as helping downed airmen becomes a bigger cause when they meet Sophia, a German escapee and fierce critic of Hitler who is wanted by the Gestapo.

Sicily, 1943. Three American women, all nurses in the Medical Air Evacuation Transport Squadron, are determined to do all they can for their country. Vita is fun-loving, Dot shy and sweet-natured, and Evelyn practical and determined, but for all their differences, a life of military service pulls the three together as firm friends. When they’re selected for a daring mission, the women are proud to play their part. But disaster strikes when their plane crash-lands behind enemy lines in occupied Albania. finally find their way home?

Berlin, 1941: Margarete Rosenbaum is working as a housemaid for a senior Nazi officer when his house is bombed, leaving her the only survivor. But when she’s mistaken for his daughter in the aftermath of the blast, Margarete knows she can make a bid for freedom.... Issued with temporary papers - and with the freedom of not being seen as Jewish - a few hours are all she needs to escape to relative safety. That is, until her former employer’s son, SS officer Wilhelm Huber, tracks her down. 

1945: Along with hundreds of other war brides, Betty, Madeline, Alice, and June set sail for New York to be with the men they love. In the days they spend at sea, the four young women become firm friends and vow to stay in touch no matter what their new lives bring. Life in a new country comes with many challenges, but Betty, Madeline, Alice, and June didn't move half way across the world to give up without a fight.