Thirteen-year-old Lisa has escaped from Nazi Germany on the Kindertransport. She arrives in London unable to speak a word of English, her few belongings crammed into a small suitcase. Among them is one precious photograph of the family she has left behind. Lonely and homesick, she is adopted by a childless couple. But when the Blitz blows her new home apart, she wakes up in a hospital with no memory of who she is or where she came from. The authorities give her a new name and dispatch her to a children's home. With the war raging around her, what will become of Lisa now?

1940. Aiyi Shao is a young heiress and the owner of a formerly popular and glamorous Shanghai nightclub. Ernest Reismann is a penniless Jewish refugee driven out of Germany, an outsider searching for shelter in a city wary of strangers. He loses nearly all hope until he crosses paths with Aiyi. When she hires Ernest to play piano at her club, her defiance of custom causes a sensation. His instant fame makes Aiyi’s club once again the hottest spot in Shanghai. Soon they realize they share more than a passion for jazz - but their differences seem insurmountable....

August 1939: London is dismal under the weight of impending war with Germany as Hitler’s forces continue to sweep across Europe. Into this uncertain maelstrom steps Grace Bennett, young and ready for a fresh start in the bustling city streets she’s always dreamed of - and miles away from her troubled past in the countryside. With aspirations of working at a department store, Grace never imagined she’d wind up employed at Primrose Hill, an offbeat bookshop nestled in the heart of the city - after all, she’s never been much of a reader.

One morning while passing through Grand Central Terminal on her way to work, Grace Healey finds an abandoned suitcase tucked beneath a bench. Unable to resist her own curiosity, Grace opens the suitcase, where she discovers a dozen photographs - each of a different woman. In a moment of impulse, Grace takes the photographs and quickly leaves the station. Grace soon learns that the suitcase belonged to a woman named Eleanor Trigg, leader of a network of female secret agents who were deployed out of London during the war.

Anne Gallagher grew up enchanted by her grandfather’s stories of Ireland. Heartbroken at his death, she travels to his childhood home to spread his ashes. There, overcome with memories of the man she adored and consumed by a history she never knew, she is pulled into another time. The Ireland of 1921, teetering on the edge of war, is a dangerous place in which to awaken. But there Anne finds herself, hurt, disoriented, and under the care of Dr. Thomas Smith, guardian to a young boy who is oddly familiar.