Wow, this is episode was amazing. Castle does another amazing 2 part episode. It wasn't as good as "Tick, Tick, Tick..." and "Boom" but it was still such a good episode. I can't wait for part two of this episode.
I loved Castle and Beckett locked in the quarintine, becuase they get really personal, which is always a key player in what makes castle amazing. The case was genius, the investagator who was brought in was a total jerk, and the cliff hanger left me in a frozen state, mouth wipe open, and a little drool.
Overall I think this episode was the bomb! (Ha, get it? Bomb?)