Diyah Pera/The CW
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Supernatural (The CW)
Airs: Wednesday, May 15 at 9/8c
With an episode title like "Sacrifice," it's clear that Sam and Dean's mission to close the gates of Hell won't exactly end with sunshine and rainbows. Besides dealing with Crowley and Naomi, the Winchester boys will also have to push themselves in directions they never imagined. "Things are starting to spiral out of control," executive producer Jeremy Carver says. "They're going to have to figure out, more than ever, how far they're willing to go to get this revenge." Meanwhile, Castiel will also resurface with Heaven's best interests in mind. (Or are they Naomi's interests?) Plus: Sam's Season 1 love interest Sarah Blake (Taylor Cole) may not be the only familiar face returning.