As 1754 is drawing to a close, tensions between the French and the British on Canada’s Acadian shore are reaching a fever pitch. Seamstress Sylvie Galant and her family—French-speaking Acadians wishing to remain neutral—are caught in the middle, their land positioned between two forts flying rival flags. Amid preparations for the celebration of Noël, the talk is of unrest, coming war, and William Blackburn, the British Army Ranger raising havoc across North America’s borderlands.

When their father's death leaves them impoverished, Sarah Summers and her genteel sisters fear they will be forced to sell the house and separate to earn livelihoods as governesses or companions. Determined to stay together, Sarah convinces them to open their seaside home to guests to make ends meet and provide for their ailing mother. Instead of the elderly invalids they expect to receive, however, they find themselves hosting eligible gentlemen. Sarah is soon torn between a growing attraction to a mysterious Scottish widower and duty to her family.

When German bombs set London ablaze, BBC radio correspondent Hugh Collingwood reports on the Blitz, eager to boost morale while walking the fine line between truth and censorship. But the Germans are not the only ones Londoners have to fear as a series of murders flame up amid the ashes. The deaths hit close to home for Hugh, and Aleida needs his help to locate her missing son. As they work together, they grow closer and closer, both to each other and the answers they seek. But with bombs falling and continued killings, they may be running out of time.

Left with an estate on the brink of bankruptcy after their father's death, Lady Marigold Fairfax and her brother open a private investigation firm marketed to the elite . . . to spy on the elite. Dubbed The Imposters, Ltd., their anonymous group soon becomes the go-to for the crème of society when they want answers delivered surreptitiously. But the many secrets Marigold learns about her peers pale in comparison to her shock when she and her brother are hired to investigate her best friend's father as a potential traitor.

Addie Bryant is haunted by her past of heartbreak and betrayal. After her beau, Isaac Hanson, left the Yukon, she made a vow to wait for him. When she's sold to a brothel owner after the death of her father, Addie manages to escape with the hope that she can forever hide her past and the belief that she will never have the future she's always dreamed of. Years later, Addie has found peace in her new life as a photographer, training Camera Girls to operate and sell the Brownie camera. But during the Alaska-Yukon-Pacific Expo in Seattle, Addie is reunited with Isaac.

Bertie Jenkins has spent forty years serving as a midwife for her community in the Great Smoky Mountains of East Tennessee. Out of all the mothers she’s tended, none affects her more than the young teenager who shows up on her doorstep, injured, afraid, and expecting, one warm June day in 1943. As Bertie and her four sisters tenderly nurture Songbird back to health, the bond between the childless midwife and the motherless teen grows strong. But soon Songbird is forced to make a heartbreaking decision that will tear this little family apart.

It's April 1861, and the Union Army's Medical Department is a disaster, completely unprepared for the magnitude of war. A small group of New York City women, including 28-year-old Charlotte Waverly, decide to do something about it, and end up changing the course of the war, despite criticism, ridicule, and social ostracism. Charlotte leaves a life of privilege, wealth, and confining expectations to be one of the first female nurses for the Union Army. She quickly discovers that she's fighting more than just the Rebellion by working in the hospitals.

A tenant farmer’s son had no business daring to dream of a future with an earl’s daughter, but that couldn’t keep Amos Darby from his secret friendship with Charlotte Terrington…until the reality of the Great War sobered youthful dreams. Now decades later, he bears the brutal scars of battles fought in the trenches and their futures that were stolen away. His return home doesn’t come with tender reunions, but with the hollow fulfillment of opening a bookshop on his own and retreating as a recluse within its walls.

Aidyn Kelley is talented, ambitious, and ready for a more serious assignment than the fluff pieces she’s been getting as a cub reporter for the Kansas City Star. In her eagerness, she pushes too hard, earning herself the menial task of writing an obituary for an unremarkable woman who’s just entered hospice care.

Detective James Holton has been honorably discharged from the Army Criminal Investigation Division due to wounds sustained when an IED blew up near him. Now with the Lake City Police Department, he's rooming with his good buddy and partner, Cole, while he figures out his family dynamics. Physician Assistant Lainie Jackson is eighteen months out from an attempted murder perpetrated by her ex, which ended when she managed to grab the weapon and shoot him. When he appears to have survived and is back to finish the job he started, Lainie insists it's not possible.