When Rick comes back around the 12th precinct, Starbucks lattes in tow, Beckett gets her hopes up that he's there to see her. Turns out, Castle's just digging for info on gang unit detective Ethan Slaughter. Talk about a letdown.
Original Air Date: Castle Season 4, Episode 21: "Headhunters" airs on Monday, April 16, 2012 at 10 p.m. ET on ABC