From MadCap's Couch - Supernatural: "In the Beginning"

"Look, it's either this or the DeLorean two lots over..."

So, last episode, we had a hell of a lore dump, learning the reason that Dean was rescued from Hell by Castiel: the 66 Seals are being broken and Lucifer is soon to be rising.Given that when a seal is broken it is lost, it seems that Heaven and the Winchesters are fighting an uphill battle, if not a losing one. This time, we'll be shifting gears to the side a bit... or in reverse, as it were.

Just remember, when this baby hits 88 miles per hour... you're gonna see some serious shit.

From MadCap's Couch - Supernatural: "Are You There, God? It's Me, Dean Winchester"

Let's show these ghost bitches how we do it downtown!

Last time, Dean returned from Hell under mysterious circumstances! While Sam had clearly teamed up with Ruby to hunt demons in his absence, Dean and Bobby summoned up the creature responsible for Dean's resurrection - an angel named Castiel. Season 4 was definitely set off with a bang... so what happens next?

From MadCap's Couch - Supernatural: "Lazarus Rising"

Where will you be when diarrhea hits?

DEAN WINCHESTER IS SAVED!

...oh, wait. That comes later.