Jimmy Palmer becomes the target of a mysterious killer who only he can recognize.

The fate of the entire team hangs in the balance as they hunt the killer of one of their own.

When a mortar attack in Baghdad turns into a murder investigation, two members of the NCIS team are sent to Iraq to solve the case.

The NCIS team investigates when a Muslim Marine is found dead near a Mosque that is suspected by the FBI of terrorist recruitment. Their search is delayed when Ducky refuses to autopsy the Marine in deference to his family's religious beliefs.

The NCIS team pays a heavy price when they try to track down a Marine who believes he is still in Iraq. After a violent confrontation, the team realizes the Marine is the subject of a secret experiment.

NCIS - Interrogation with the NCIS Cast - Pauley Perrette - Stuck in the Lab.

Pauley Perrette has lived all over the country. See her talk about her favorite place to be.

Nikki Boyer goes behind the scenes for some one-on-one time with NCIS' Pauley Perrette on Hollywood 411!

Abby and Gibbs often communicate in sign language, but are the actors fluent in ASL?

Pauley Perrette on Osteoporosis