When a Navy reservist returns home to find her husband missing and her living room covered in blood, she turns to the NCIS team to bring him home. Meanwhile, Tony suspects that Ziva is planning a risky move to avenge her father's death.moreless
A massive storm brings the NCIS team aboard the USS Borealis, where everyone becomes a suspect once the crime scene proves that Mother Nature wasn't the only culprit. Tension builds when McGee discovers that his estranged father, Navy Admiral John McGee, was on board during the incident.moreless
After Ducky and Jimmy fail to return to headquarters following a crime scene investigation, the rest of the NCIS team works to locate the disappearing duo.
The team looks into a hacker that could lead them to the most-wanted cyber terrorist in the world.
The NCIS team investigates the brutal murder of a Navy Lieutenant who just returned home from the Middle East.
When a petty officer is murdered in a billionare's Ferrari, the NCIS team stumbles upon Gibbs' namesake.
While on medical leave, Ducky decides to reopen a 12-year-old case by ordering the exhumation of a Navy commander's body. Meanwhile, the team also investigates a recent death of a Marine that may be tied to Ducky's old case.moreless
The NCIS team investigates the cause of a mysterious death involving a NCIS armory employee that was found four months after the Navy Yard bombings. Meanwhile, the team has to undergo mandatory psych evaluations, causing Gibbs to worry about Abby.moreless
Gibbs goes on the hunt to find Harper Dearing and bring him down following the NCIS headquarters bombing.
Terrorism shakes the foundations of the Navy and NCIS to such an extent that Gibbs and the team face surprises that will devastate them.
The team's search for a terrorist targeting the Navy takes a bizarre turn when a high-tech bug is found in Probationary Agent Ned Dorneget's tooth.
Tony and Ziva travel to Colombia, where they are joined by Ziva's longtime mentor in the search for a missing Marine Lieutenant and Navy Chaplain.
While stopping by his usual diner for coffee, Gibbs finds himself in grave danger, prompting him to think about his past and the choices he made in his life.
The NCIS team investigates the murder of a Navy lieutenant commander while dealing with her distraught husband. Meanwhile, Ziva ponders the future when Ray returns.
After a Navy Captain is murdered in his hotel room, the NCIS team has to find his pregnant companion and protect her from unknown assailants. Meanwhile, Jimmy brings his future father-in-law to work.moreless
While investigating a crash of a military plane that was transporting caskets, the NCIS team comes upon a discrepancy with the DNA remains.
The NCIS team investigates the death of a Navy lieutenant that died of over-hydration, which soon turns into a murder investigation. Meanwhile, Gibbs meets Ducky's new lady.
The NCIS team has a surprise in store for them when investigating the murder of a Navy lieutenant leads them to McGee's grandmother.
The NCIS team investigates the death of a young Marine that came to his homecoming party with a stab wound.
Gibbs and the NCIS team have to find answers regarding Tony's months-long assignment when an NCIS agent is found dead.