Gear yourself up for a rather large dose of Supernatural and settle down on the sofa for a double bill. We start off with Sam beginning to doubt Benny again after he comes across a blood-drained corpse. Dean sticks up for pal and insists that he'll find the evidence he needs to prove the vampire's innocence. Then there's trouble for both Castiel and Amelia, as they're forced to make some pretty big decisions. Sounds angsty.