If you haven’t watched all of this season of Castle yet, stop reading and go catch up. This episode is worth it.
Who Killed Beckett’s Mother?
We start out with a recap from seasons past to remind us how we got here. Flashes of Beckett’s dead mother fill the screen. Captain Montgomery reminds Kate that these guys, “. . . are coming to kill you and I’m not going to let them . . .” Then we see Roy Montgomery fulfilling this promise with his own death.