BANG! Sophia falls to the ground dead. She’s been shot by Danberg, who needs help to stop the assassination. It’s just the three of them. No backup. Beckett races off, but Castle stays behind, stunned by all that’s happened. In the U.N. lobby, Corrigan takes aim at the young girl. He’s about to pull the trigger when he’s tackled by Danberg and Beckett. They shuffle him out of the building before anyone knows how close they came to the end of the world as we know it.
When Castle wonders about his dad’s possible CIA connection, Beckett says Sophia was traitor who told a lot of lies. She knows this must be tough for her partner. After all, he based Clara Strike on Sophia. Castle says, “Clara started off as Sophia, but she ended up being more like you. You know…smart…fierce…kind. I think that’s one of the reasons I was drawn to you…as a muse.” It’s a nice thing to say to someone who just helped him save the world. Hey, did you notice that little friendly bump Beckett gives Castle as they walk away discussing the possible resurrection of Derrick Storm? It was subtle, but it was there.