The six D’Aplièse sisters have each been on their own incredible journey to discover their heritage, but they still have one question left unanswered: who and where is the seventh sister? They only have one clue - an image of a star-shaped emerald ring. The search to find the missing sister will take them across the globe - from New Zealand to Canada, England, France and Ireland - uniting them all in their mission to complete their family at last.

Three very different women are recruited to the mysterious Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante Osla has the dashing Prince Philip of Greece sending her roses - but she burns to prove herself as more than a society girl, working to translate decoded enemy secrets. Self-made Mab masters the legendary codebreaking machines as she conceals old wounds and the poverty of her East-End London upbringing. And shy local girl Beth is the outsider who trains as one of the Park’s few female cryptanalysts.

1938: Magda has led a sheltered life in her small village until the day she is forced from her home by the invading Nazi army. Torn away from her family and the only place she has ever known, she is offered refuge in an alpine villa owned by brilliant Dr, Tauber and his talented, beautiful wife. But despite having friends in high places, the Jewish Taubers are living on borrowed time. When the Gestapo come to arrest them, Magda is asked to protect something more precious than the silver and jewels they leave behind. Their newborn son Samuel. 

Occupied Italy, 1944. In the mountain regions south of Bologna, Liliana Nicoletti’s family finds escaped POW James Foley behind German lines. Committed to the anti-Fascist cause, they deliver him to a powerful band of local partisans. But when the SS launches a brutal attack against the Resistance, Liliana’s community is destroyed. Forging an unbreakable bond, James and Liliana's only hope of survival is to make it to the Allied lines. Twelve years later, fate reunites Liliana, newly widowed, and James, now a journalist for a New York magazine.

Paris, 1939. Maison Chanel has closed, thrusting haute couture dressmaker Lila de Laurent out of the world of high fashion as Nazi soldiers invade the streets and the City of Lights slips into darkness. Lila’s life is now a series of rations, brutal restrictions, and carefully controlled propaganda while Paris is cut off from the rest of the world. Yet in hidden corners of the city, the faithful pledge to resist. Lila is drawn to La Resistance and is soon using her skills as a dressmaker to infiltrate the Nazi elite.

Berlin, 1934. Homes once filled with laughter stand empty as the Nazi party’s grip on the city tightens. When Anna Tiegel’s beautiful best friend catches Reich Minister Goebbels’ special attention, an impulsive act to save her brings Anna under his unforgiving scrutiny. First, she loses her job, then slowly, mercilessly, she finds her life stripped away. After her father is killed by the Nazis, Anna’s final hope is to escape to America with her boyfriend Eddy, but when she reaches his apartment on the agreed date, she finds it deserted.  

An unknown location, occupied France, 1944. Dropping silently behind enemy lines, Sylvia Crichton, codename Monique, is determined to fight for the country of her birth and tear it from its Nazi stranglehold. As one of the dancers at the nightclub Mirabelle, Sylvie’s mission is to entertain the club’s German clientele and learn their secrets. In a world of deception and lies, she can trust no one. 

A young woman's future is torn away in a heartbeat. Herded on to a train bound for Auschwitz, in an act of desperation she entrusts her most precious possession to a stranger. All she has left now is hope. Jean-Luc thought he had left it all behind. The scar on his face a small price to pay for surviving the horrors of Nazi Occupation. Now, he has a new life in California, a family. He never expected the past to come knocking on his door. On a darkened platform, two destinies become entangled. Their choice will change the future in ways neither could have imagined.

Berlin, 1938: it’s the height of summer, and Germany is on the brink of war. When fledgling reporter Georgie Young is posted to Berlin, alongside fellow Londoner Max Spender, she knows they are entering the eye of the storm. Arriving to a city swathed in red flags and crawling with Nazis, Georgie feels helpless, witnessing innocent people being torn from their homes. As tensions rise, she realises she and Max have to act - even if it means putting their lives on the line. 

Caroline Grant is struggling to accept the end of her marriage when she receives an unexpected bequest. Her beloved great-aunt Lettie leaves her a sketchbook, three keys, and a final whisper...Venice. Caroline’s quest: to scatter Juliet “Lettie” Browning’s ashes in the city she loved and to unlock the mysteries stored away for more than 60 years. 

In late March 1944, as Stalin’s forces push into Ukraine, young Emil and Adeline Martel must make a terrible decision: Do they wait for the Soviet bear’s intrusion and risk being sent to Siberia? Or do they reluctantly follow the wolves - murderous Nazi officers who have pledged to protect “pure-blood” Germans? The Martels are one of many families of German heritage whose ancestors have farmed in Ukraine for more than a century.

Berlin, 1936: From her beautiful new home Liesel Scholz barely notices the changes to the city around her. Her life is one of privilege and safety thanks to her father’s job working for the new government. But soon a chance encounter with Rosa, the daughter of their Jewish housekeeper, leaves Liesel in no doubt that something isn’t right. Frankfurt, 1946: An idealistic American captain, Sam Houghton, arrives in Germany to interrogate prominent Nazis on trial and to help rebuild a battered country. He hires an enigmatic and damaged woman named Anna as his interpreter.

It is 1943, and for four years, 16-year-old Stefania has been working for the Diamant family in their grocery store in Przemsyl, Poland, singing her way into their lives and hearts. She has even made a promise to one of their sons, Izio - a betrothal they must keep secret since she is Catholic and the Diamants are Jewish. 

A door slammed and the unmistakable sound of boots came crashing up the hall. Liese held her little daughter’s hand so tightly, the tiny fingers had turned purple. The SS officer’s hand was at Liese’s throat before she saw him move. "I can kill you easily, then I can kill your daughter." He relaxed his grip a little. "Or perhaps I could kill her first?" England, 40 years later. When Karen Cartwright is unexpectedly called home to nurse her ailing father, she goes with a heavy heart. 

Minnie is supposed to find a nice man, get married and have children. The problem is it doesn’t appeal to her at all. She is working as a secretary but longs to make a difference. Then, one day, she gets her chance. She is recruited by the British government as a spy. Under strict instructions not to tell anyone, not even her family, she moves to London and begins her mission - to infiltrate the Communist movement.