Overview:The X-Men must fight an enemy from inside their own ranks.
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First Air Date: Oct 28, 2009Last Air date: Nov 13, 2012Season: 4 SeasonEpisode: 25 EpisodeRuntime: 26:14 minutesQuality: HDIMDb: 4.8 / 10 by 11 usersPopularity: 24.738Language: en
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