Haunted by the horrors of war, ex-cavalry officer Matthew Hanger leads a band of mercenaries known as Hanger's Horsemen who have become legends in 1890s Texas. They defend the innocent and obtain justice for the oppressed. But when a rustler's bullet leaves one of them at death's door, they're the ones in need of saving. Dr. Josephine Burkett is used to men taking one look at her skirts and discounting her medical skills. What she's not used to is having a man change his mind in a heartbeat and offer to assist her in surgery. Matthew Hanger's dedication to his friend during recovery earns Josephine's respect, and when she hears of her brother's abduction, he becomes her only hope for rescue. Matt has stared down ruthless outlaws, betrayal, and injury, but when a bossy lady doctor crawls under his skin, his heart is tempted to surrender. And when she is caught in the crossfire, he may have to sacrifice everything—even his team—to save her.

For years they've been nomads for justice, but a final mission may just lead their hearts home. Members of the legendary Hanger's Horsemen, Mark Wallace and Jonah Brooks arrive in Llano County, Texas, to deliver a steed, never expecting they'd help deliver a baby as well. Left with an infant to care for, they head to a nearby foundling home, where Mark encounters the woman he nearly married a decade ago. After failing at love, Katherine Palmer has dedicated her life to caring for children, teaming up with Eliza Southerland to start Harmony House. Eliza understands the pain of not fitting society's mold, being illegitimate and of mixed ancestry. Yet those are the very attributes that lead her to minister to outcast children. The taciturn Jonah intrigues her by defying all her stereotypes of men, but there are secrets behind his eyes—ghosts from wars past and others still being waged. When the Horsemen hear rumors of missing children, they stay to investigate, sticking close to Harmony House and its beautiful owners. As they work together to uncover the truth, love and danger grow hand in hand until a final sinister scheme threatens to destroy them all.

He's faced countless perils on the battlefield, but nothing so dangerous as falling in love. Luke Davenport has been fighting all his life—for respect, for country, and for those unable to fight for themselves. But now that his Horsemen brothers are domesticated, he's left alone to battle the wildness within. When an opportunity arises to take a job on his own, tracking down a group of rustlers, he jumps at the chance. Damaris Baxter has mastered the art of invisibility. Plain and quiet, she hides in books and needlework, content to be overlooked. Until her brother dies suddenly, leaving her custody of her nephew. She moves to Texas to care for Nathaniel, determined to create the family for herself that she never thought she'd have and to give him the family he desperately needs. When Nate finds himself knee-deep in trouble, Luke's attempt to protect him leaves Damaris feeling indebted to the Horseman. But suspicions grow regarding the mysterious death of Damaris' brother. And the more questions they ask, the more danger appears, threatening the family Luke may be unable to live without.