Gracie Thompson has a job, a loving family, a twin brother who drives her insane and a great friend. A chance meeting introduces her to the love of her life. But the storm clouds are gathering, Europe is teetering on the verge of war and threatening to destroy everything Gracie holds dear. When war arrives her family are split up, her younger siblings evacuated, her brothers join up to serve, her boyfriend, Charlie, is in daily danger and her life is threatened.

Sitting bolt upright, Ella rubs at her eyes and concentrates on the music. Is she dreaming? She’d fallen for Luka’s voice the first time she heard him singing on the street corner near her house, with his kind smile and joyous laugh. He was her first love, and the pain of being torn apart still slices at her. He’s alive. But even as hope swells in Ella’s heart, terror threatens to swallow it. Luka is Jewish. If he’s here, he’s in grave danger—even more than Ella faces for sneaking into the ghetto to see him back in Warsaw… But she will never regret it.

When Sophie Weiss boards the SS St Louis, she has no reason to stay in Germany. The Nazis have taken everything from her, and her only hope is escape. But when she meets fellow Jewish refugees Rosa, Hannah and Rachel on board, the friendship they form gives Sophie hope that there can be happiness in her future, after all.

Bridget Collins is in dire straits - she needs to get out of New York, fast. With two young siblings under her wing, her options are limited. Her priest sends her as an outplacement agent on the orphan trains that run from New York to out west. With almost 40 orphans under her care, she's relieved that fellow and more experienced outplacement agent Carl Watson is there to guide her. But Carl is dealing with his own trauma and finds it difficult to handle the pain the orphans are dealing with.

1852 Illinois. Eva Thompson has her future mapped out. Marriage to David Clarke and a family is all she wants. Her Pa has other ideas. He insists on taking the Oregon Trail to a better life and favors Harold Chapman as Eva's suitor. Marriage to Harold will provide Eva with everything she needs except . . . love.

1940, Liverpool: Alice Turner and her best friend, Millie Markham, work for the war effort at Rootes munitions factory, making shell caps and Halifax bombers. Alice’s sweetheart, Terry, is home from the front for a brief period of leave. But the honeymoon is soon over. Terry must go back to the dangers of Nazi-occupied France, and the ever-present air raid sirens quickly bring Alice back down to earth.

Daniel Sullivan needs a wife; the bank insists they will only finance his business if he gets married. What's he to do when the woman he's interested in is promised to another?

In 1944, American naval officer Lt. Wyatt Paxton arrives in London to prepare for the Allied invasion of France. He works closely with Dorothy Fairfax, a "Wren" in the Women's Royal Naval Service. Dorothy pieces together reconnaissance photographs with thousands of holiday snapshots of France - including those of her own family's summer home - in order to create accurate maps of Normandy. Maps that Wyatt will turn into naval bombardment plans. As the two spend concentrated time together in the pressure cooker of war, their deepening friendship threatens to turn to love.

The rumblings of war in distant countries mattered little to Danny McClain. Growing up in Chicago, his world revolved around afterschool jobs, a rescued beagle, his pen pal in Holland, and the Cubs' chance to go to the World Series. Then, in December of 1941, news of the attack on Pearl Harbor hit much too close to home. In a few years, Danny found himself in the copilot seat of a B-17, stationed with the 390th Bomb Group in Framlingham, England.

Carmel, a forty year old Irish woman is living a life that’s fine, not exciting or awful, just fine. She has a house, a husband, it’s all ok. She never had kids, but that’s just life, right? She knows she should be grateful. She’s better off than a lot of people. Then one day, out of the blue, she gets a Facebook message, from a total stranger. With information that could transform her life, for better or for much worse.

Meira Sokolow had the misfortune of being born to Jewish parents in Warsaw, Poland, in 1912. Before she took her first breath, her fate had been sealed. Residing in the Jewish Quarter of the city, Meira's early life was typical. She fell in love with a local boy, got married, and had a daughter. Then the German army marched into Warsaw and everything changed. Forced into the ghetto with her family, she found survival to be a daily struggle. Hunger, disease, and unimaginable cruelty were her stark realities.

Ania hears the explosion of gunshots before she sees the Nazi soldiers approach her beloved home. Her family don’t have time to run, but she does. Hiding nearby, she listens to her sister’s screams and – stroking the red ribbon she keeps tied around her wrist – she begins to plot her revenge… Taunted her whole life for being smarter than anyone else in the village, now living in war-torn Poland, being governed by Nazis who think Poles are subhuman and women only good for one thing… Ania now only has her wits to rely on, if she's going to survive.

In July 1940, Gwen Collingwood drops her husband at the railway station, knowing she may never see him again. Two days later, her humdrum world is torn apart when her sleepy English seaside town is subjected to the first of many heavy bombing attacks. In Ontario, Canada, Jim Armstrong is uncertain whether to volunteer for the army. When he uncovers the secret his fiance has been keeping from him his decision is clear. A few weeks later he is on a ship bound for England.

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.

Champagne, 1939. Gabrielle Leblanc Dupree is taking her family's future into her hands. While she should be preparing for a lavish party to celebrate two centuries of champagne making, she secretly hides Chateau Fouché-Leblanc's most precious vintages behind a fake wall in the cellar in preparation for the looming war. But when she joins the resistance, the coveted champagne isn't the most dangerous secret her cellar must conceal.