For Havyn Powell, growing up on her grandfather Chuck Bondrant's dairy outside the 1904 gold-rush boomtown of Nome, Alaska, offered all she needed. She had the love of her mother, two sisters, and grandfather. But now, at 23, Havyn realizes the stability of her life may soon vanish. Havyn is determined to find a way to keep the family together, but her grandfather's health is declining and everyone seems to be holding secrets from each other, including the handsome, dark-haired stranger who recently arrived.

In 1869, Gloriana Womack's family is much smaller since smallpox killed her mother and two of her siblings. She lives in a modest cottage in Duluth, Minnesota, with her father and young brother, and she has dedicated her life to holding her tiny, fractured family together - especially as her father is frequently gone on long fishing trips. Their livelihood may come from the waters of Lake Superior, but storms on the lake can be dangerous, even to those who know it well. Luke Carson has come to Duluth to help shepherd the arrival of the railroad to the city's port.

Larkspur Nielsen is ready for a change. Her parents have passed on, and her older brother is successfully running the family business. She bristles at the small-mindedness that permeates life in her small Ohio community, and she sees little chance of a satisfying future there. She has a little money saved, and after turning the tables on a crooked gambler who had fleeced several locals, including her younger brother, she can stake a new start for herself and her three sisters. 

As a former smokejumper, arson investigator Bri Tucker knows her way around fires. But after a mysterious blaze takes the life of a former colleague, Bri inherits a curious puzzle from him that raises questions about several fiery deaths. Someone, however, doesn’t want her picking up where he left off in search of answers. When she teams up with ATF Special Agent Marc Davis to solve the puzzle, the case heats up—as does the attraction between them.

Patrick O'Neill survived a hardscrabble youth to become a lawyer for the downtrodden Irish immigrants in his community. He's proud of his work, even though he struggles to afford his ramshackle law office. All that changes when he accepts a case that is sure to emphasize the Blackstones' legacy of greed and corruption by resurrecting a 30-year-old mystery. Little does Patrick suspect that the Blackstones will launch their most sympathetic family member to derail him.