When her husband serves her with divorce papers for her fiftieth birthday, Amy Warren sets out to rebuild her self-esteem by backpacking across the Grand Canyon. She expected the hike to be difficult: heat, elevation, rattlesnakes; but when she finds a mangled body in a ravine and a series of suspicious events occur along the trail, the adventure takes a dangerous twist. Amy's new friendship with experienced backpacker, Sarah Rochon, gives her the encouragement she needs to conquer the canyon's natural dangers. Ranger Glen Hawk volunteers to safeguard the women from the unnatural dangers, but his offers of protection and affection are rebuffed by Amy who is not ready to trust her emotions. In the end, Amy solves the murder, discovers her own inner strengths, and brings peace back to the Grand Canyon and into her life.