On leave from NCIS while still grieving the loss of his wife and his kids’ mother, Director Vance discovers unexpected personal information that causes him to question everything.

The team investigates the death of a petty officer and discovers he may have been leading a violent secret life.

When a Marine known for his practical jokes is found dead on Halloween Eve, the NCIS team discovers that the victim's "good-natured" pranks may have inspired ghoulish retribution. Meanwhile, Ziva tries to adjust to her new role on the team.

Torres boldly breaks protocol when he learns a witness in an NCIS case is wanted by U.S. Immigration and Customs Enforcement. Also, Abby, Bishop and McGee woo landlord Tony DiNozzo Sr. in the hope of subletting Tony’s apartment.

A distinguished senator asks Gibbs for help in solving the murder of a young female Naval officer.

When a government scientist goes missing, Abby is recruited to carry on his work, but the team worries that she may meet the same fate as her predecessor.

NCIS uncovers a bomb plot and a long-running theft ring while investigating a death at a Quantico reunion. Also Torres and Quinn adjust to life on Gibbs’ team, including new seating arrangements in the squad room.

Agent Knight's past resurfaces when her ex-boyfriend, a National Parks Service agent, teams up with NCIS to investigate a campsite murder.

The NCIS team investigates the murder of two Marine wives, and must find the murderers before they attack their next target, another woman.

When a corpse of a man is found inside a tomb that comes from the Civil War, the team discovers that the victim, a Sergeant, was buried alive. During the investigation, Abby tracks down the last phone call of the victim. Meanwhile, Gibbs is informed by his new boss Jenny Sheppard that agent Ziva is now a full-time NCIS agent.

Gibbs' hunt for the killer of a marine puts him on a collision course with an old friend.

Demons of the past come back to haunt Gibbs when he finds a cryptic message waiting for him at a crime scene.

The team finds themselves in a race against time when a terrorist group threatens to detonate a "dirty bomb" in the D.C. area.

The team tries to track down a serial killer, while Abby heads south of the border to give a speech with McGee in tow.

Agent Torres finds himself in prison as the team tries to stop an impending terror attack on U.S. soil.

A Navy bank has been robbed. NCIS is responsible for the investigation. One of the new recruits assigned to the fraud unit, Special Agent Dwayne Wilson, joins the team to help.

Gibbs and the team investigate the shooting of a Marine and uncovers more to his life than anyone would have ever imagined.

It’s Christmas time and Tony DiNozzo can’t decide if he’ll be naughty or nice when his dad, Anthony DiNozzo, Sr., comes to town for a visit. Meanwhile, the NCIS team is “following the money” in order to solve a murder investigation, and Abby is bursting with excitement over all the holiday festivities.

The NCIS team investigates a Marine’s car accident and ignites some upsetting past memories for Abby as a young girl on the trail of her first “case”.

The international manhunt for Eli David's killer turns into a federal witch hunt against Gibbs and the team, which questions their unconventional methods and threatens their future at the agency.

The murder of a Petty Officer in a small town outside D.C. prompts NCIS to once again work with "The Sherlocks," a privately funded investigative team that includes their newest member, Anthony DiNozzo, Sr.

The team tries to verify the identity of Joe Smith, who claims he served on the U.S.S. Arizona during the attack on Pearl Harbor, and wants to be buried there upon his death.

Vance assigns McGee, Torres, and Bishop to Covid compliance duty at a foreign affairs summit, where they discover a link to another NCIS team's murder case.

While on Air Force One, a Navy commanding officer dies. Agents from the Navy NCIS decide to take the investigation into their own hands and also force a Secret Service Agent to help. Now the NCIS team has to figure out if the Navy Officer's death was of natural causes or not.

When a Navy commander, who was a technical advisor to a civilian contractor for a Navy weapon, is found dead on the beach, the NCIS team investigates the murder using satellite technology.