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.
Genres:
Albert Dekker as Dr. Alexander Thorkel
Thomas Coley as Bill Stockton
Janice Logan as Dr. Mary Robinson
Charles Halton as Dr. Rupert Bulfinch
Victor Kilian as Steve Baker
Frank Yaconelli as Pedro
Paul Fix as Dr. Mendoza
Frank Reicher as Prof. Kendall
Jane Webb as Woman
Billy Wilkerson as Silent Indian
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