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.