Tim Bradford doesn't ever get flustered. But an upcoming undercover op just changed that. A one-shot set just before the end of episode 4.22. I can't say more without episode spoilers for the end of Season 4.

It's been two days since CIA traitor Sophia Turner nearly killed Beckett & Castle. Castle is struggling with the betrayal by someone he trusted, and Kate must control her own feelings and be there to support her partner and friend. And they're both losing sleep over it. What could go wrong if they talked over dinner at her place instead of a restaurant?