Overview: An eco-terrorist threatens civilization and the Sentinels travel into the ocean to find and stop him.
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First Air Date: Sep 10, 1977Last Air date: Dec 03, 1977Season: 1 SeasonEpisode: 13 EpisodeRuntime: 22 minutesQuality: HDIMDb: 7.30 / 10 by 3 usersPopularity: 0.7839Language: English
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