It's "The Fisher King Part 2" and questions are answered, like who is the Fisher King, does Elle survive getting shot, why the hell was the guy sending all that stuff to the team anyway and who does he have locked up in his dungeon basement. But that's not all. Ronnie watched the Season 14 finale and is full of invective towards it which Jazz hears. There's not much desire to actually talk about "The Fisher King Part 2" so a lot of tangents occur like pretty much always. It may not seem like a 'banger', but this is by Criminal Minds standards.
