Recently widowed, Barbara Livingston flies to New Mexico to stay with longtime friends for the summer. However, instead of her friends, a sexy, Spanish cowboy meets her at the airport. While awaiting her friends to retrieve her, he takes her home to his working ranch. Trini Montoya tells her about Kokopelli, the shape-shifter in local Navajo legends and folklore. When she hears Coyote's mystical flute music drifting on the wind, she understands there is to be a 'Promise of Change' in her life. Trini has no idea just how much he wants her until she and his favorite horse suddenly disappear into the devastating heat wave on the New Mexican desert. The search begins to find her.