When did Castle Season 4 Episode 16 air?
Castle Season 4 Episode 16 aired on February 20, 2012.
Castle
A whole new chapter in crime solving.
After a serial killer imitates the plots of his novels, successful mystery novelist Richard "Rick" Castle receives permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes.
Created by: Andrew W. Marlowe
Season 4 · Episode 16
Linchpin (2)
Feb 20, 2012·44m
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. Their efforts continue to put Castle in contact with Sophia Conrad - a smart, commanding and sexy CIA operative who was Castle's inspiration for Clara Strike in the "Derrick Storm" series of books; and intelligence officer Martin Danberg is back.
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How long is Castle Season 4 Episode 16?
This episode runs for approximately 44 minutes.
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