

S06E19
The Greater Good
Aired March 24, 2014
Free, with no ads. Tick off what you watch and see what airs next.
Summary
Castle and Beckett investigate the murder of a Wall Street trader, but the case takes a shocking turn when the they discover the victim was an undercover informant for the U.S. Attorney's office. To complicate matters further, the U.S. attorney involved is Elizabeth Weston, Captain Gates' estranged sister.
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