Doug Fletcher, a retired Minnesota detective, relocates to Arizona and a quiet life as a part-time National Park Service ranger. His plans change abruptly when a suspicious fall at a national monument plunges him into the world of stolen antiquities, ruthless drug smugglers, and shady antiques dealers. Working with Jamie Ballard of the Navajo Nation Police, Doug finds their investigation complicated by the demands of his visiting family, a new boss, an overly friendly neighbor, the FBI, and his new environment.