Under the floorboards of a ruined homestead near Joshua Hills, desert rattlesnakes guard a decades-old family rivalry and a long-hidden treasure that should have remained in the past. In the ruins, Cassidy Michaels, a tracker for Joshua Hills Search and Rescue, uncovers a map hidden for almost a century that leads her ever-deeper into danger of the deadly variety. Cassidy puts herself at risk in order to protect an elusive cat burglar and fellow treasure hunter determined to find Ronald Kingsley's famous jewelry, long-lost in one of the homesteads. Her life is complicated by Misty Montague, a rival from Cassidy's high school days, who will stop at nothing to lure away Cassidy's husband.