After a four-year engagement, Cassie James’s plans for the future come crashing down when her relationship abruptly ends. She needs to regain her balance, and her parents’ ranch in Montana provides the perfect escape. But respite is the last thing she finds. While camping near the Bitterroot Forest, a strange sound leads Cassie to make a startling discovery: a young child, abandoned in the wilderness. She acts on instinct, taking him home to the ranch with her. But she has no idea that by doing so, she will be forced to engage in a fight for his life—and her own. With the help of Deputy Parker Grafton, Cassie works to uncover the mystery behind the boy’s origins. The pair is drawn closer together each step of the investigation as they follow a bizarre trail of clues. But when a series of dangerous accidents begins to plague the family ranch, Cassie and Parker realize that an unknown assailant is closing in. They have to run. In a game of cat and mouse spanning the country, Cassie and Parker will stop at nothing to protect what’s become most important to them: the child in their care—and each other.