![](https://image.tmdb.org/t/p/w342/jQJQ4jX1q2DnwVqIDrooDCmgmZN.jpg)
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Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.
Release: Mar 17, 1945
Runtime: 219 minutes
Language: English
Studio: Republic Pictures
Country: United States of America