Really loved the first part of the Season 9 two part premiere, titled "Loyalty". Which was very powerful and set things up for what was to come in the second part and the rest of the rather brief season, one of the shortest ones of 'Law and Order: Criminal Intent', beautifully. As far as the show's season openers go, "Loyalty" (both parts) is one of the best. Did have reservations prior to watching about Nichols working, but luckily he does do so.
If one loved the first part of "Loyalty", expectations of course would be high for Part 2. While not quite as great as Part 1, which was a little more emotionally investable (ie. The reactions to the big tragedy that shakes the team), "Loyalty: Part 2" is absolutely excellent still, one of the best episodes of Season 9, and its best components are outstandingly done. It is not quite as fantastic as the best of Seasons 1-4, the period when 'Criminal Intent' was in its prime to me, but "Loyalty: Part 2" showed that the show was still worth watching despite being a lot less consistent in later seasons.
Production values are still slick and suitably gritty (without being too heavy in it). The music is not too melodramatic and is not used too much, even not being too manipulative in revelations. The direction lets the drama breathe while making sure that the tension and emotion never slipped.
There are great performances across the board, especially Vincent D'Onofrio. Goren and Eames are as ever on top form and work together like a fine wine and cheese. Was intrigued but also worried as to whether Nichols would gel or whether he would jar, with such a different demeanour. He actually gels very well and his skills are also put to good use and that his quirkiness has been toned down is appreciated.
Story engrosses from the get go and sets up what is to come next and the season more than promisingly. The script is tight and thoughtful, with little rambling. All the characters are well written, especially Goren without dominating too much.
Excellent episode overall. 9/10.