I don't think I've ever had so much fun watching a clip show. And it wasn't really a clip show, was it? At first I thought it was going to be, but in reality they didn't spend all that much time playing us clips of old stuff. There was a full story and a lot of new material. It was sort of a combo between a clip show and a new episode, and I for one thought it was great.
The premise is simple: Beckett steps on a sensor plate and if she takes her foot off, a bomb is going to go off. Castle stays with her to keep her distracted while they try and disarm the bomb. Turns out, there's a timer, and the bomb squad cannot find a way to disarm it. Castle refuses to leave, however, and the two of them come up with the correct password to disarm it at the very last second. It's unrealistic and cheesy, and it's the second time that this show has done a disarm-the-bomb-just-before-it-goes-off episode, but it works pretty great.
Alexis and Martha weren't in the episode at all this week, and Javi, Ryan and Bates all have fairly secondary roles as they scramble to figure out how to save Beckett. They did a good job displaying their panic and their drive. There was one moment from Bates that was absolutely fantastic, but I'll get to that when I get to the end of the episode.