With the Mark of Cain progressively getting worse—read: Dean growing increasingly more violent—Sam and Castiel are in desperate need of some answers. At this point, they need anyone and everyone’s help… and in the world of Supernatural, that means the dead could be just as helpful (if not more so) than the living.

So where do they turn in their hour of need? To the man who not only helped them take down Lucifer, but also taught them the meaning of the word “idjit.”

EW has an exclusive sneak peek of Bobby’s return, as Sam and Cas contact him in heaven with the help of a radio. Sound familiar?