I did enjoy this episode, but ther were some parts of it that I didn't enjoy. The hostage situation at the beginning was really intense and a nice little twist! However, I don't think the episod edeveloped exceptionally well from that point on.
While the involvement of an agent from Callen's past was an appealling idea initially, I think the case collapsed as the episode developed.
I did, however, enjoy the gunfight towards the end. The high action is what makes NCIS: Los Angeles so enticing!
The scene that ruined the episode for me was indeed the last scene in the Cayman Islands. I didn't enjoy seeing the agent, Tracy, being apprehended. I though she would make a nice recurring character fo rthe future.
Still, a good episode, which I would have to recoommend, but not as highly as the previous episode. Keep it up, guys, and I am really enjoying the second season!