Overview
Four explorers are summoned to Peru by the brilliant physicist Dr Thorkel. They discover a rich source of radium and a half-mad Thorkel who shrinks them down to one-fifth their normal size when they threaten to stop his unorthodox experimentation.
Cast
Dr. Alexander Thorkel
Bill Stockton
Dr. Mary Robinson
Dr. Rupert Bulfinch
Steve Baker
Pedro
Dr. Mendoza
Prof. Kendall
Woman
Silent Indian