A marine captain is murdered, and the team suspects a known terrorist's brother. Dinozzo is jealous of McGee's being selected by PR.
The team investigates a murder, where the victim is using an alias from Gibbs past. Bishop get's anxious over the thought of having to work under cover in the future, and the team learns the secret of Gibbs working as a computer nerd.moreless
A chief warrant officer who specialized in counterintelligence is murdered. The investigation reveals the victim's wife has been kidnapped and is being held for ransom. Meanwhile, senior FBI agent Fornell travels to the Big Easy to assist with the case.moreless
Hetty receives some shocking news from NCIS director Leon Vance while she is investigated by the Department of Justice in Washington, D.C. Meanwhile, Nell goes undercover as Hetty to protect a fellow team member.moreless
Gibbs and McGee are sent to Russia to escort Kevin back. When there helicopter is shot down, the team has to think fast to survive the guys after them.
Gibbs reunites with a former colleague when the murder of a congressman in New Orleans prompts a joint case between the field offices and the FBI.
The NCIS team enters the world of rock ‘n roll after a bomb explodes during the rehearsal for a military charity concert.
When DiNozzo confronts a man impersonating a Navy officer, guns are drawn and the perpetrator is left dead. The subsequent investigation uncovers that the only eyewitness is DiNozzo's father, who is in town to disclose a secret to his son.moreless
After uncovering faulty bulletproof vests in a truck filled with stolen U.S.M.C. merchandise, the NCIS team attempts to locate both the source and any vests that had been shipped to military personnel overseas.moreless
The murder of a port authority officer reveals Parsa's possible whereabouts, as the team continues their tireless hunt. Meanwhile, Bishop reveals her past association with the elusive terrorist.
In an effort to find the terrorist Parsa, Gibbs and the NCIS team track down one of his cohorts using evidence from the drone attack. Meanwhile, an emotionally shaken McGee struggles with the ramifications of the incident.moreless
When a stolen drone is linked to the elusive terrorist Parsa, the NCIS team partners with the Department of Defense, including Gibbs' former girlfriend, Hollis Mann, to track down the device before it is used for a large scale attack.moreless
After a mysterious illness strikes children from military families, Gibbs and the team investigate the cause. Meanwhile, Abby and Jimmy partner with the Naval Medical Research Center to determine the strain of illness, all in hopes of delivering a cure before the holidays. Also, Vance struggles with forgiveness as his estranged father-in-law makes a surprise visit to his home.moreless
Complications arise when the NCIS team discovers a link between a murder victim and the boyfriend of Gibbs' ex-wife.
When it's discovered the Secretary of the Navy was bugged during a confidential briefing, the NCIS team must work with NSA Analyst Ellie Bishop to help determine who is responsible.