Castle (2009) Season 4 Episode 16 - Linchpin

Airdate: 2012-Feb-20

Episode summary:

In the explosive conclusion of a two-part story arc that began last week with "Pandora," Castle & Beckett race to find the "Linchpin" in order to stop the first domino in a chain of events which will plunge the United States into war.

About Castle (2009) series:

Castle is an American comedy series that features the life of the mystery novelist, Richard Castle who has a writer’s block and became involv...Show more >