Supernatural Season 10 DVD Overview
Season 10 begins with Sam’s frantic search for his missing brother, who is gone without a trace. The road to recovering the wayward Dean takes Sam down dark paths, with consequences that will shake the boys to their core. Meanwhile, Castiel has to pick up the pieces in the aftermath of Metatron’s campaign. With his grace failing and rogue angels still on the loose, Cas will face the ticking clock of his own mortality as all-new threats emerge to once again push all of our heroes to their limits.

Dean is a demon and running amuck with Crowley while Sam tries to figure out what happened to his brother. Meanwhile, Castiel is dealing with his diminishing grace.

This premiere failed to put up to the hype that the S9 finale created, no particular Arc except Dean and Cas has been introduced.....Dean is a demon and he shows that he doesn't care about anything, however still he doesn't express the viciousness that a typical demon does....its just a Dean that doesn't care about anything or anyone (except a one night stand lover), not a Dean with a twisted soul that enjoys killing...i think in many ways he is even calmer than the Human Dean with Mark Of Cain.....Castiel's story began strange with him in a bed and Hanna showing up behind his doorsteps...there are a couple of issues here, 1) haven't angels return to heaven?...so they should be healed because of their presence in heaven, then why Hanna is still walking, and riding along in a car with Cas?.....2)Cas's fading grace is killing him, however he is still an angel and doesn't need and Cannot sleep (as he said previously about missing being a human)....so how come he was sleeping?...this was a pretty weak premiere, maybe weakest of the whole show.......it was anti Climatic and "not" suspenseful...but it was a bit funny..I give it that....