When Supernatural returns for its sixth season on Friday (yes, Friday) September 24, Dean will be settled at home as a family man.

But, as you can imagine, this change of pace doesn't exactly last. Visited by Sam, along with his mysterious grandfather, Dean is convinced that he must set out on a new mission.

What is it? What sort of creatures does it involve slaying? The following, minute-long promo gives fans more of an idea than ever before:

[video url="http://www.tvfanatic.com/videos/extended-supernatural-promo/" title="Extended Supernatural Promo"] [/video]

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.