Luke Stratte-McClure

When the son of a Russian diplomat turns up murdered, Beckett and Castle find themselves in a game of international crime and punishment, with Castle having to entertain a Russian security officer who ends up more involved than anyone planned.

Christian's colossal financial debt leads him to resort to deception, an unexpected visitor stirs insecurity within Christian, but brings joy to Sean, and Christian bonds with a young patient when he learns about his adoption.