Castle asks what that says about their relationship.
When Castle discovers Beckett has been secretly considering a job in another city, he's so angry that she lied to and excluded him that he has to leave.
Enjoy some extra Castle merriment with this fly on the wall footage from the birthday party in "The Lives of Others." Lanie and Esposito even share a kiss!
Castle and Beckett moments from the past 5 Seasons that we'll always remember.
To celebrate Castle's 100th episode airing Monday APR 1 10|9c, we've put together the Castle and Beckett moments from the past 5 Seasons that we'll always remember.
An interview with a federal law enforcement agency forces Beckett to reconsider her career and her relationship with Castle; a young woman's body is found inside a flop house's water tank.
When a government whistleblower is murdered, Beckett and Castle must figure out who is responsible and determine why Homeland Security is trying to take over the case.
When Beckett steps on a pressure-sensitive bomb, the team searches for a way to save her while Castle distracts her by talking about their relationship.
When Beckett is tasked with protecting a charming billionaire whose life is in danger, she reflects on her relationship with Castle; consumed with jealousy, Castle tries to solve the case as quickly as possible.
After the FBI fails to get Alexis back, Castle takes matters into his own hands; Castle learns that his daughter's kidnapping may be a part of a larger and more sinister agenda.
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