Michael and K.I.T.T. help people from a Native American tribe ward off a group of greedy oil diggers. The disappearance of Dr. Quentin Tanner and his college protégé Barbara Ralston prompts the Foundation to send Michael on a mission to find both scientists. Tanner, an archeologist, and the young woman were digging for an ancient American-Indian treasure and had enough evidence indicating its location. Michael asks Susan Christopher to help him find Dr. Tanner and Barbara. Susan is a social worker and her interest is, as is everyone else's, to have the burial grounds declared a national shrine. Instead ruthless Cyrus Oakes wants to start digging for oil.