![](https://image.tmdb.org/t/p/w342/4JnQiySYzL42ep32LaXE97s9hSI.jpg)
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The Herculoids are attacked by purple vines whose existence was brought about by glowing purple energy rocks.
First Air Date : Sep 12, 1981
Last Air date : Nov 21, 1981
Episode : 66 Episode
Season : 1 Season
Runtime: 60 minutes
Studio: NBC
Country: United States of America