How does Capt. Gates feel about sending Beckett into the middle of an undercover operation on Castle? "In the Belly of the Beast" airs Monday, March 3rd on ABC.
Things go horribly wrong for Beckett during an undercover investigation on Castle. "In the Belly of the Beast" is the 17th episode of the show's sixth season.
Kate Beckett is smiling. Perhaps she and Castle have made more plans for their upcoming wedding. "Room 147" is the 16th episode of the show's sixth season.