The 6th season of Supernatural wraps up tomorrow evening, but the CW already released a brief plot synopsis for season 7 when announcing their fall line-up:
[Minor Spoiler Warning] "Now, in season seven, the Winchesters will find themselves in an increasingly sinister, changing landscape, up against a new foe unlike anything they’ve ever fought. They’ll find their old tricks, weapons and hiding places all rendered useless. All they’ll have is each other. And the certainty that, like the last of the cowboy outlaws, whatever they face, they’re not going down without a fight." [End Spoilers]
The two-hour season finale contains two episodes titled Let It Bleed and The Man Who Knew Too Much. Series creator Eric Kripke returned to write the last episode of the season and you can catch both episodes starting this Friday at 8pm EST.