
Naval Criminal Investigative Service Special Agent Leroy Jethro Gibbs leads a group of colorful personalities in investigating crimes -- ranging from murder and espionage to terrorism -- that have evidence connected to Navy and Marine Corps personnel. The team includes MIT graduate Timothy McGee, Ellie Bishop, who specializes in international threat assessment, charismatic and unpredictable Nick Torres, and forensic psychologist Jack Sloane. Dr. Donald "Ducky" Mallard brings his vast experience in forensics into play to help solve cases.
When a Navy lieutenant is killed in a brutal attack shortly after returning home from the Middle East, the team questions the victim's friend, a Marine captain with post-traumatic stress disorder.
When a man is murdered after a neighborhood dinner party, the team discovers every guest is lying; the deeper the team digs, the less they can agree on what kind of case they're even working.
Capt. Westcott continues to help the team track a terrorist; Abby is excited about the NCIS Thanksgiving dinner; Tony is curious when he learns that Ziva is making special plans.
As the team searches for an abducted teenager, Abby and Ziva work closely with a friend of the girl who witnessed the kidnapping; Gibbs turns to a former contact for help; Tony is jealous when Ziva makes plans with another man.