Without giving away any significant Supernatural spoilers, the following trailer will undoubtedly get fans ready for the fifth season of this series.

Premiering on September 10, the show welcomes a vital characters into the fold this fall: Satan himself.

Lucifer is certainly hinted at below, as the title of the official preview of "O Death."

[video url="http://www.tvfanatic.com/videos/o-death/" title="O Death"] [/video]

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