Ver en Cuevana. A mining engineer, who is shunned by his peers for his unorthodox beliefs concerning the whereabouts of large uranium deposits, joins forces with a girl and her father to search for the mineral. When the father is hurt in an accident, daughter and engineer continue the project, aided by a Native American guide. Unbeknownst to the group, a reputable citizen of the town, really of low moral value, is shadowing them, his intention to jump their claim.