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Castle (2009) Season 6 Episode 17 - In the Belly of the Beast
Beckett is recruited to assist on a Narcotics investigation, but a routine mission turns deadly when an undercover operation goes array. To survive, Beckett must engage in a battle of wits against some of the most dangerous men in the New York underworld – including a powerful enemy from her past.
Air Date: 3 Mar 2014