I really enjoyed this whole season, but I was a little disappointed by the ending. It was predictable and done before. In fact, there is an episode of criminal minds that is almost identical to this episode. A terrorist group uses an explosion as a distraction while they target a hospital where a high ranking individual is at. Even the terrorists disguised as EMT workers and the chase in an underground metro was done in that same episode. While I thought it was a fine finale, I've just seen it before. I hope future seasons are more unique.