See, while they’re trapped, they talk. And then they bond (you didn’t think the bonding was between the brothers, did you?) This is the possibly the frankest discussion about Dean’s fate that we’ve had so far. He asks what hell’s like and we can actually see nervousness through the bravado. It’s so bad that the demons want to get out to earth. So unpleasant that they’re actively looking forward to Dick Cheney’s appearance. We also get some back-story on the whole demon invasion thing- that they were supposed to follow Sam, that she would have followed Sam. Dean calls Sam cold and he was. Bobby reassures Dean but we should note the change in the brothers. Sam’s becoming more cold and calculating, Dean more soft and squishy. And Sally’s no help. Sam’s got his own demon bonding moment, but more to the worse than the better. She warns him he’ll have to do things unpleasant, like killing the mortals the demons inhabit, to succeed and that she’ll be the little fallen angel on his shoulder. This episode is really setting the tone for how the season will unfold. Bobby becomes a paternal figure, but much more available than theirs ever was. Dean and Sam diverge as the go on different journeys and, probably, Dean will need to save Sam from himself, again.