I think this a perfect opener for season 7. The team working together and their determination and mostly the old chemistry between the team members that was lost out in season 6 because of well..you know Seaver...is finally BACK!
This episode was kind of a wrap up from the previous story lines, inorderto ease up Prentiss's entry back into the BAU. This episode also opened up a number of story lines for the future episodes like the trust issues that may arise within the team because of hiding Emily.
However for me the actor that shined in this episode was Shemar Moore. The determination with which he was finding Doyle just to avenge Emily's death was brilliant but the best scene was when he see's Emily enetr the BAU room...the hurt and confusion on his face were just so clearly evident. His expressions easily conveyed the hurt of being kept in the dark about a friend who he dearly loved and spent the last 7 months working for.
Overall a really good episode. And for all those people who are tired of Doyle storyline, just wait for sometime as they will get back to normal cases but this episode was needed to bring Prentiss back.
LOVE the old team back.