Overview:On Target Earth, a 2-hour special on H2, scientists, government officials and other experts examine earth's infrastructures and life-support systems to theorize how humans would fare in an alien attack.
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First Air Date: Jan 01, 1970Last Air date: Sep 13, 2013Season: 1 SeasonEpisode: 32 EpisodeRuntime: 26:14 minutesQuality: HDIMDb: 3 / 10 by 2 usersPopularity: 1.8271Language: en
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