Wikipedia:Today's featured article/May 3, 2014

"What Is and What Should Never Be" is the twentieth episode of the paranormal drama television series Supernatural's second season, and was first broadcast on May 3, 2007. Dean Winchester (Jensen Ackles) finds himself in an alternate reality after a confrontation with a djinn. The creature appears to have fulfilled Dean's greatest wish: that his mother had not been killed when he was a child. Dean is happy until it becomes apparent that his previous work as a hunter of supernatural creatures has been undone. He then rejects the alternate reality and attempts to bring himself back. The episode was written by Raelle Tucker, and marked the directorial debut of series creator Eric Kripke. It featured the return of deceased characters Mary Winchester (Samantha Smith) and Jessica Moore (Adrianne Palicki, pictured). Kripke enjoyed expanding upon the character of Mary, who was only briefly depicted in earlier episodes. Despite obtaining low ratings, the episode acquired positive critical reviews, praising Ackles' performance and welcoming the return of Smith and Palicki. Tucker also received a Constellation Award for her work on the episode.

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