NCIS

A successful "JAG" spin-off about criminal cases involving Navy and Marine personnel, handled by the Naval Criminal Investigative Service. For the second season, the series title was shortened from "Navy NCIS" to "NCIS."

Season 4, Episode 24 Angel of Death

First Aired: May 23, 2007

In the fourth-season finale, Gibbs tries to find out why the agents are required to take Homeland Security polygraph tests; and Tony and Jeanne are held captive by a drug dealer.

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