Castle: Episode 4.16- Linchpin

    Every show tries to be bigger than itself. It's a fact of life. It tries to make an episode that goes way out of it normal comfort zone and does something extremely different. However, most of the time it doesn't work.
    Take last night's conclusion of the "epic" 2-part Castle event, "Linchpin". Castle, a murder-mystery-drama-comedy, tried to become a serious Bourne-type spy thriller. And did a really bad job at it.