Divided into seven segments, Bundy's film contemplates the physical and spiritual landscape of the U.S. 's "four corners," an area embracing the states of New Mexico, Arizona, Colorado and Utah. Jet streams divide the celestial quadrant marked by the movements of sun and moon. On the earth's surface, the camera captures the play of light as it lingers on mystical, geological landmarks - canyons, craters, sculpted rock formations and the cave drawings etched by the ancient dwellers of the Southwest.