Sam Archer was looking forward to his last day with the Tucson Police Department prior to retiring. Tucson was suffering under a deluge from summer storms and accompanying traffic crashes. Among the storms he finds a young girl walking naked down a major highway. The girl doesn't want to communicate with Sam, so he takes her to the Tucson hospital where his wife, Joanne, is employed in the mental health department. Joanne discovers that the girl isn't human just as the girl's mother shows up at the hospital with the sheriff of the local Indian reservation. Joanne releases the girl to her mother, but is intrigued and attempts to follow up on the reservation. She learns that the only way she can meet with the girl or her mother is to become a tribal shaman. Joanne accepts the challenge and is suddenly faced with a program of training and tests that costs her job and places her life in serious danger. When she surprises everyone and becomes a shaman, she comes face-to-face with the Elder community and finds that things may not be what the seem.