Waking up five years in the future, Dean finds himself in an abandoned city and is attacked by humans who are infected with a demonic virus.
There will be two Dean Winchester in the upcoming episode of "Supernatural". The CW's thriller series will return to the small screen to present the older Winchester brother meeting his future self, who warns him that the demonic virus infecting humans is the Devil's endgame for destroying mankind.
In the all new episode entitled "The End", Sam tells Dean he wants to rejoin Dean in the battle of the Apocalypse. Instead of getting a warm response, his offer is met with a rejection from the older Winchester, who thinks that they are better off apart.
Later, Dean awakens five years in the future in an abandoned city and finds himself being attacked by the infected humans. Amidst his confusion, Zachariah appears before him and explains that this is the world that exists as a result of Dean saying no to helping the angels fight Lucifer.
"The Air", which is directed by Steve Boyum and penned by Ben Edlund, will air next Thursday on October 1. Kurt Fuller guest stars as Zachariah, and Misha Collins once again takes the role of Castiel.