London 1940. As the war rages in Europe, Rose Brown steps on board a ship bound for America, hoping to escape the danger. She's frightened, but her widowed mammy and three sisters in Ireland need the money she earns as nanny to the rich Townsend family. But while Rose plays with baby Sarah in the salty spray on deck, disaster strikes, and the ocean liner begins to sink. In the chaos, Rose and the baby are separated from the family.

1950. In the wake of the war, Audrey Clarkson leaves her manor house in England for a fresh start in America with her young son. As a widowed war bride, Audrey needs the support of her American in-laws, whom she has never met. But she arrives to find that her longtime friend Eve Dawson has been impersonating her for the past four years. Unraveling this deception will force Audrey and Eve’s secrets - and the complicated history of their friendship - to the surface.

Nestled in the mountain shadows of Alabama lies the little town of Wicklow. It is here that Anna Kate has returned to bury her beloved Granny Zee, owner of the Blackbird Café. It was supposed to be a quick trip to close the café and settle her grandmother’s estate, but despite her best intentions to avoid forming ties or even getting to know her father’s side of the family, Anna Kate finds herself inexplicably drawn to the quirky Southern town her mother ran away from so many years ago, and the mysterious blackbird pie everybody can’t stop talking about.

Peggy Serrano couldn’t wait for her best friend to come home from the war. But the Jimmy Barnett who returns is much different from the Jimmy who left, changed so drastically by his experience as a medic in Europe that he can barely function. When he attempts the unthinkable, his parents check him into the VA hospital. Peggy determines to help the Barnetts unravel what might have happened to send their son over the edge. She starts by contacting Jimmy’s war buddies, trying to identify the mysterious woman in the photo they find in Jimmy’s belongings.

In 1950s Quebec, French and English tolerate each other with precarious civility - much like Maggie Hughes' parents. Maggie's English-speaking father has ambitions for his daughter that don't include marriage to the poor French boy on the next farm over. But Maggie's heart is captured by Gabriel Phénix. When she becomes pregnant at 15, her parents force her to give baby Elodie up for adoption and get her life "back on track".