Lanie, Castle, and Ryan are swapping theories but at this point they have no idea that their latest murder will lead them to the Captain's estranged sister.
Talk about a "Knockout" punch. In the Castle season 3 finale, Kate Beckett is shot by a sniper at Capt. Montgomery's funeral. All Castle can do is hold her and tell her he loves her.
After 4 seasons, Kate showed up at Castle's door to tell him exactly what she wanted. The kiss up against the door in "Always" left shipper hearts aflutter for the entire summer.
