The Greater Good Castle : Season 6 Episode 19
TV-14 ABC 43m int(0)
Aired: March 24th, 2014 @ 9:00 PM EST on ABC
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.