Overview: Urko and his army search the desert for the entrance to the Under-dwellers' caverns.
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First Air Date: Sep 06, 1975Last Air date: Nov 29, 1975Season: 1 SeasonEpisode: 13 EpisodeRuntime: 30 minutesQuality: HDIMDb: 6.70 / 10 by 52 usersPopularity: 29.684Language: English