Reporters Clark Kent and Lois Lane arrive in the small town of Silsby to witness the drilling of the world's deepest oil well. The drill, however, has penetrated the underground home of a race of small, furry people who then come to the surface at night to look around. The fact that they glow in the dark scares the townfolk, who form a mob, led by the vicious Luke Benson, intent on killing the strange people. Only Superman has a chance to prevent this tragedy.
George Reeves
as Superman / Clark Kent
Phyllis Coates
as Lois Lane
Jeff Corey
as Luke Benson
Walter Reed
as Bill Corrigan
J. Farrell MacDonald
as Pop Shannon
Stanley Andrews
as The Sheriff
Ray Walker
as John Craig
Hal K. Dawson
as Chuck Weber
Phil Warren
as Deputy Jim
Frank Reicher
as Hospital Superintendent
Beverly Washburn
as Child
John Baer
as Dr. Reed (uncredited)
