Overview: Aidan deals with vampires; Josh prepares to reenter medical school; Sally's powers strengthen.
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First Air Date: Jan 17, 2011Last Air date: Apr 07, 2014Season: 4 SeasonEpisode: 52 EpisodeRuntime: 43 minutesQuality: HDIMDb: 7.00 / 10 by 174 usersPopularity: 47.86Language: English