What will it take to unhinge the Winchesters?

The Supernatural trailer below poses this question, as The CW teases fans with what's to come on one of its biggest hits.

Unfortunately, new episodes don't air until January 21. Until then, viewers will debate which team they'd be on if/when these brothers come to odds: Team Dean or Team Sam?

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

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