On tomorrow night's Supernatural, angels are dropping like flies as they're being killed by Lucifer's sword. Castiel and Uriel capture Alastair and ask Dean to torture him to try and extract information to stop the murders.
We have a series of pictures from the episode, which is entitled "On the Head of a Pin," revealing an epic battle between Castiel and Alastair. It also looks like Dean gets a little hurt himself.
Click to enlarge any of the following thumbnails: