As Chucky continues to talk to Suvarov, we see Jack standing in another dark corner of Manhattan listening to their conversation. Apparently, he planted a microscopic transmitter on Chucky's shirt (reminding us of a similar scenario from season five when he caught Chucky's incriminating dialogue with his wife Martha on tape) and is able to record the conversation for future use. Jack knows what he has to do now, and so do we, but as he moves away from his hiding spot, we see a bloodstain on the brick wall, letting us know our hero is weakened as he takes tenuous steps toward his fate (and the end of 24 as we know it).
Episode 22 is as good as any of the best episodes of 24 in past seasons. It features Jack going against all the odds, and all the loose ends are getting tied up as we proceed toward the series finale next week. Inevitably, there will be arguments for and against allowing Jack to fall into this dark mode, but ever since Jack Bauer told us about the first worst day of his life nine years ago, we should have known there could be no other way to go. 24 is a tragedy, and tragedies just don't have happy endings.