Mike Royce, Becket's former police mentor, who lost his bounty-hunter license when she arrested him, is murdered while visiting New York, possibly by a fellow passenger from L.A. The captain takes her off the case but she uses extant leave. Castle comes along, having to visit his book's movie set anyway. Informally backed up by Ryan and Esposito, they soon find Royce must have been after the manufacturer of the dissolving type of bullet he was killed with. The trail of arms-dealings and new crimes leads back to New York, fortunately as LAPD detective Kyle Seeger, who follows, wants them out as much as Montgomery ordered Becket back. Written by
Did You Know?
When Castle visits the set of "Heat Wave" in L.A., he and the film's director pass by a set of an airplane fuselage. This is the real Castle
(2009) set in which Nathan Fillion
and Stana Katic
shot the scenes of Castle and Beckett flying to California and back to New York. See more
When Beckett comes out of the pool, an hotel employee gives her a pool skirt. When she swings it around her hips, water droplets fly out of the skirt meaning that it was already wet. That means it wasn't the first take and Stana had to put it on multiple times before. See more
[Voiceover as Beckett reads letter
Now for the hard part kid. Its clear that you and Castle have something real and you're fighting it. But trust me, putting the job ahead of your heart is a mistake. Risking our hearts is why we're alive. The last thing you want is to look back on your life and wonder "if only."
Edited into Castle: Still
The Other Side
Performed by Sloan See more