This was a great episode, that raised some interesting points. One of the clones in the group is a traitor. What could make a Clone Trooper turn against his own? The answer is a great one-- he feels the clones are nothing more than slaves of the Republic. And really, he's right. Do the clones get asked to serve? No, they're pre-programmed to when they're being created. If a clone wants to leave the service, is he allowed? I hope they do more to follow up on this particular point of view, because it raises some great points that haven't been addressed before in any of the Clone Wars media I've seen. (Granted, I haven't read any Clone Wars era books yet.)
The only thing I didn't like is that when he's caught, Rex and Cody are asking him how he could justify actions that endangered his fellow clones. They weren't just endangered-- we saw a bunch of them get killed. They double standard of how we can show characters getting killed but we can't acknowledge it in dialogue has always annoyed me.