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.

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 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.

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.

It is 1939, and working-class Evie Bishop has received a scholarship to study mathematics at Oxford when tragedy turns her life upside down. Evie must seek a new future for herself and, inspired to contribute to the war effort, joins the Women’s Auxiliary Air Force as an Ops Room plotter. Posted to a fighter station on the Sussex Coast, Evie befriends two other WAAFs. But the German bombers seem to know more than they should about the base’s operations, and soon Evie, May and Jess are caught up in a world more dangerous than they ever imagined. 

Liverpool 1939: Olivia Campbell appears to have the perfect life. However, behind closed doors she lives in constant fear of her abusive father and has no support from her mother. Longing for love and affection, she begins a relationship with Ted, a young lad who works in her father's factory. But her family disapprove of the relationship and forbid them from seeing each other.

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. 

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. 

Audrey Coltrane has always wanted to fly. It is why she implored her father to teach her at the little airfield back home in Texas. It is why she signed up to train military pilots in Hawaii when the war in Europe began. And it is why she insists she is not interested in any dream-derailing romantic involvements, even with the disarming Lieutenant James Hart, who fast becomes a friend as dear as the women she flies with. Then one fateful day, she gets caught in the air over Pearl Harbour just as the bombs begin to fall, and suddenly, nowhere feels safe.  

For much of her life, Anne Morrow, the shy daughter of the U.S. ambassador to Mexico, has stood in the shadows of those around her, including her millionaire father and vibrant older sister, who often steals the spotlight. Then Anne, a college senior with hidden literary aspirations, travels to Mexico City to spend Christmas with her family. There she meets Colonel Charles Lindbergh, fresh off his celebrated 1927 solo flight across the Atlantic. Enthralled by Charles’s assurance and fame, Anne is certain the celebrated aviator has scarcely noticed her. But she is wrong.

As a volunteer for the ambulance service, Ruby has the dangerous task of driving along pitch-dark roads during the blackout. With each survivor she pulls from the rubble, she is helping to fight back against the enemy bombers, who leave nothing but destruction in their wake. Assigned to her crew is Joseph, who is unable to fight but will stop at nothing to save innocent lives. Because he is not in uniform, people treat him with suspicion, and Ruby becomes determined to protect this brave, compassionate man who has rescued so many, and captured her heart. 

Liverpool, 1939. Bella Rogers thought her life was just starting; she can’t wait to get married to her childhood sweetheart, Bobby. But when war is declared and Bobby is called up, his letters stop, leaving Bella heartbroken and alone. Then her family is torn apart by tragedy when her angelic 5-year-old sister dies from a terrible illness. They can barely afford a funeral, but the church is packed with the entire community, devastated for their loss. Grieving for her sister and lost love, Bella finds a job at the Bryant and May factory, making matches.

It's 1942, and World War Two is in full swing. Roberta 'Bobby' Hollis has joined the Air Transport Auxiliary in a team of pilots known as the 'glamour girls'. Just as capable as the men, these women ferry aircraft, parts and people between factories, assembly plants and airfields. 

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.

Newly married to dashing RAF officer Tom, Irene Farley leaves behind her safe countryside life to move in with his family by the docks in South Shields. Little prepares her for the devastation the Jerry bombers have wreaked on the Sixteen Streets or that they would be living under her mother-in-law's roof, alongside Tom's three brothers and two wives!