The angels send Anna back in time to kill John and Mary Winchester before they can conceive Sam knowing that if Sam was never born then Lucifer won’t be able to use him as his vessel. Castiel sends Sam and Dean back to 1978 so they can stop Anna, and the two brothers are reunited with their parents. Mary recognizes Dean as a hunter since he visited her in the past once before but tries to keep the truth from John.

THEN: Castiel turned angel Anna over to the Heaven Police forsome enhanced interrogation, Dean went back in time to 1973 to meet hismother and destiny was still waiting for Sam to become Lucifer and Deanto become Michael.NOW: Supernatural gets off to a sexy start asDean enjoys some "sweet cherry pie" courtesy of two strippers dressedas an angel and the devil.  Leave it to Dean‘s imagination to turn theApocalypse into a lap dance.  It‘s obviously a dream, as we learn whenAnna shows up.  She just broke out of Angel Jail and wants Dean‘s help.
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