Strong episode, gave it an Excellent.
A lot of questions were answered, but now even more have been raised. But at least we have some idea as to why these 'soldiers' from the other side are over here messing with stuff.
What annoys me though is despite the sense of urgency portrayed by this episode, the trailer for next week's episode makes it look like it will be a stand-alone from the main 'arc' that the series has been taking.
I have to say that I was a little surprised that Charlie would be outed so soon. I figured that he would find a way to disrupt the facial reconstruction program before it finished, so that his cover was preserved. But I guess he quickly realized that there wasn't enough time, so he ambushed Olivia unsuccessfully in the alley.