Inside the walls of Arlington Hall, a former women's college in Virginia that has been taken over by the United States Army, hundreds of men and women sit, bent over stacks of paper. Pencils in hand, they labor to decode countless pieces of communication coming from the Axis powers. Justine works among them, handling the most sensitive secrets of World War II. But she isn't there to decipher German codes. She's there to find a traitor.

Faye Longchamp has lost nearly everything, except for her quick mind and a grim determination to keep her ancestral home, Joyeuse, a moldering plantation. When the property taxes rise beyond her means, Faye sets out to save Joyeuse by digging for artifacts on her property and the surrounding national wildlife refuge and selling them on the black market. A tiny bit of that dead glory would pay a year’s taxes, and a big, valuable chunk of the past would save her home forever. But instead of potsherds and arrowheads, she uncovers a woman’s shattered skull, a Jackie Kennedy-style earring nestled against its cheek bone.

Haunted by an unfathomable tragedy in a Michigan copper-mining town, Fenna Vos has learned to focus on her own survival, even as World War II rages on. Now, she performs with an escape artist. Her honed ability to control her surroundings and elude entrapments, physical or otherwise, helps her run from the trauma of her youth. Then, Fenna is recruited by British intelligence. 

Artist Marguerite Segal is recruited by British Intelligence into befriending Etienne Valade, a local priest. Her mission is to persuade him to pass on information from the high-ranking German officers who attend his church: evidence of their war crimes. Connected by a passion for art, Marguerite and Etienne soon fall in love, but their association increasingly puts her at danger of violent reprisals. With his church frequented by Nazis, Etienne is a suspected collaborator, and distrust is high.

Juliette and her husband have finally made it to France on the romantic getaway of her dreams—but as the days pass, all she discovers is quite how far they’ve grown apart. She’s craving a new adventure, so when she happens across a tiny, abandoned shop with a for-sale sign in the window, it feels fated. And she’s about to learn that the forgotten bookshop hides a lot more than meets the eye.

World War II London: When Victoire “Paddy” Bennett first walks into the Admiralty’s Room 39, home to the Intelligence Division, all the bright and lively young woman expects is a secretarial position to the charismatic Commander Ian Fleming. But soon her job is so much more, and when Fleming proposes a daring plot to deceive the Germans about Allied invasion plans he requests the newlywed Paddy's help. She jumps at the chance to work as an agent in the field, even after the operation begins to affect her marriage. But could doing her duty for King and country come at too great a cost?

It is the autumn of 1943, and life is becoming increasingly perilous for Italian Jews like the Mazin family. With Nazi Germany now occupying most of her beloved homeland, and the threat of imprisonment and deportation growing ever more certain, Antonina Mazin has but one hope to survive - to leave Venice and her beloved parents and hide in the countryside with a man she has only just met.

1941. The Blitz rages over London. And even in Cornwall, the war is being fought. When Violet loses her sister in the Blitz, she must take her nieces to safety in Cornwall. On the coast, she meets carefree chorus girl Eva, who is also running from the dangers of London. But Porthcurno hides a secret military base, and soon Violet and Eva realise there’s a battle to fight in Cornwall, too. Together with local Hazel, who works on the base, they must come together to help the war effort. But will their friendship be enough to keep them safe? 

Guernsey, 1940. As war storms through Europe, Churchill orders the evacuation of all military personnel from the island. Boats ferry soldiers and vulnerable young children to England, leaving their parents and loved ones behind to face the invading German army on their own. One of the few remaining policemen on the island, Jack must protect not only his friends and family, but also the woman he loves: Johanna, a Jewish nurse from Germany, whose secret faith could prove fatal to them both.

The year 1963: Reeling from the death of her mother and President Kennedy’s assassination, Catherine Gray shows up on Elizabeth Bentley’s doorstep demanding answers to the shocking mystery she just uncovered about her family. What she doesn’t expect is for Bentley to ensnare her in her own story of becoming a controversial World War II spy and Cold War informer.

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 is two years before the outbreak of World War 1, and the Oakley family are typical of their time. Andrew has been clerk at a City solicitors for twenty years. Alice, his wife, keeps the home fires burning. Their sons plan on becoming skilled apprentices. And Mabel, their daughter, says she would rather die than go into domestic service like her cousin. She is going to go to train as a secretary. Andrew Oakley little imagines, as he sets off for work one February morning, that their lives are about to change in the most dramatic and tragic fashion.

The occupation has taken much from the Cotillard sisters, and as the Germans increase their forces in the seaside town of Boulogne-sur-Mer, Gabriella, Martine and Simone can’t escape the feeling that the walls are closing in. Yet, just as they should be trying to stay under the radar, Martine’s discovery of a British messenger pigeon leads them down a new and dangerous path.

Since her husband, Josef, joined the Czech resistance three years ago, Anna Dankova has done everything possible to keep her daughter, Ema, safe. But when blonde haired, blue-eyed Ema is ripped from her mother’s arms in the local marketplace by the dreaded Brown Sisters, nurses who were dedicated to Hitler’s cause, Anna is forced to go to new extremes to take back what the Nazis have stolen from her. Going undercover as a devoted German subject eager to prove her worth to the Reich, the former actress takes on a role of a lifetime to find and save her daughter.

Rhoda Middleton suspects her husband Peter is having an affair. But when Rhoda tracks the mysterious woman down, she finds she is not his lover after all, but the wife of his wartime best friend, Archie Foster. There is only one problem - Rhoda has never even heard of Archie Foster.