Bree Nicholls is close to solving a case, and someone is willing to commit murder to disrupt her investigation. When Bree's dog Samson goes missing, it's just the beginning of her life turning upside-down.

Bree Nicholls and her K-9 search-and-rescue dog, Samson, recover missing persons around the shores of beautiful Lake Michigan. Together they've become an unstoppable mystery-solving team.

When a man working at a new plant near Rock Harbor dies under suspicious circumstances, Bree's involvement in the investigation leads to an astonishing find—family she didn't know she had. Then Samson goes missing. As she tracks down her loyal dog, Bree finds that the mysterious murder and dognapping are connected. The clues lead her to evidence buried deep in the wilderness of the Upper Peninsula.

Park Ranger Kade Matthews steps in with his expert knowledge of the deep woods. Together, he and Bree must track down the killer—and find Samson before it's too late.