The cases of the Naval Criminal Investigative Service's Washington DC Major Case Response Team, led by Special Agent Leroy Jethro Gibbs.
Mark Harmon / Michael Weatherly / Pauley Perrette / David McCallum / Sean Murray / Cote de Pablo / Brian Dietzen / Rocky Carroll
Former FBI Agent Tobias Fornell pleads with Gibbs to do whatever is necessary to take down drug dealers and suppliers in the area after his daughter, Emily Fornell, is hospitalized from an opiate overdose. Gibbs is haunted by the personal aspects of the c
The NCIS team investigates the murder of a Marine Sergeant in the States who was hailed as a war hero for his efforts overseas. Also, Gibbs turns to Doctor Grace Confalone for advice after he uncharacteristically unravels and abandons his team at a crime
After NCIS finds a secret government bank account that's funding a nationwide network of vigilante justice, the team must determine who is acting as judge and jury.
After entering cold case DNA into the system, Kasie solves a 30-year-old murder case, but a loophole in the legal system may set the suspect free. Also, McGee visits an elite technology company in Silicon Valley that is offering him a highly paid position
NCIS investigates the murder of a Marine Major believed to have been killed in the 9/11 attack on the Pentagon after human remains are discovered at a construction site. A personal history with the victim drives Gibbs to solve her crime.
Following an active shooter lockdown at a naval hospital, the NCIS team searches for a suspect who fled the scene. Also, someone from Sloane's past was inside the hospital and is a key witness in the case.
Torres relies on his team's investigative skills after he wakes up on a dilapidated fishing boat, covered in blood and unable to remember the last 12 hours.
Director Vance is notified by the Pentagon that the nuclear submarine Gibbs and Bishop are aboard to conduct a murder investigation has gone radio silent.
Jimmy is torn between family and work after his father-in-law, Ed, asks him to tamper with evidence from NCIS' current murder investigation. Also, Ed's poker buddy, Anthony DiNozzo, Sr., offers to help with the case.
The NCIS team investigates a man overboard fatality from a Navy destroyer at sea. Also, Torres is frustrated with Vance's assignment to mentor three high school students.
McGee reluctantly visits his high school after the unique computer password he used as a teenager is linked to the murder of a department of defense contractor. The case escalates when an intruder breaks into McGee's home in an attempt to steal his archai
After a malnourished and confused 9-year-old is found hiding in a storage unit, NCIS reopens an old missing persons case when the girl is believed to be the daughter of a Navy recruit who disappeared 10 years ago. Also, Bishop discovers notes that Special
An old family friend, Army Corporal John Sydney, beseeches Gibbs to join him on a road trip to search for a missing military I.D. bracelet. Also, a Navy Lieutenant in NCIS protective custody is poisoned by an infamous drug dealer.
United States Secretary of Defense Wynn Crawford shuts down Gibbs' murder investigation and demands that Special Agents McGee and Torres be arrested for their actions in the case.
The team's holiday plans are put on hold when the murder investigation of a Navy veteran includes the discovery of a newborn baby who has no identification and no apparent ties to a family.
When the lead suspect of an unsolved and high-profile robbery case is released from prison, the NCIS team resumes their investigation with an undercover stakeout.
McGee and Bishop travel to Afghanistan after a murder case in the states is linked to a string of soldiers killed by friendly fire overseas. Also, Kasie leaves the lab and accompanies Torres into the field to process additional forensic evidence.
After a mural by a street artist and activist is stolen, the NCIS investigation leads to a conspiracy regarding a Navy contractor and the safety of ocean mammals. Also, Bishop shares a special connection with the street artist.
After NCIS arrives at a Halloween crime scene, Torres recognizes the victim as a friend from federal law enforcement training. Also, Jimmy thinks his lab is haunted by ghosts after objects keep mysteriously moving.
After a 50-year-old tape recording left by a murder victim is found, the NCIS team tries to exonerate Ray Jennings, the Marine serving a life sentence for the crime.
Gibbs' quiet vacation at his remote cabin is interrupted by a surprise visit from Tobias Fornell and Navy Captain Phillip Brooks, as well as a call from NCIS asking for his help locating a robber hiding in the woods near him.
One of the NCIS agents is starstruck after the team investigates an explosion outside the home of Navy Petty Officer First Class Todd Nicholas and his wife, popular reality TV star Sheba Nicholas. Also, Vance continues physical therapy for the injuries su
After a Navy lieutenant is found murdered in his hot tub, the team interviews several families in the victim's peculiar neighborhood. Also, Torres must face the consequences after a volatile night out with Palmer.
One month after Director Vance was kidnapped, Gibbs is assigned the role of acting director in his absence while the team searches worldwide for his whereabouts.
Gibbs is granted protective custody of a 10-year-old orphaned refugee when a case reveals she is the target of a violent gang.
The headquarters are evacuated when the team finds a body and bomb materials on the roof of the squad room.
Gibbs and Ducky see an antique war stick on television that could be the missing murder weapon to a 16-year-old cold case.
The team works to clear the name of a retired Marine sergeant when cyanide is found in one of the packages he sends to active-duty Marines.
NCIS makes a deal with Paul Triff to give him a 48-hour furlough at his former residence, now McGee's home, in exchange for information to convict Gabriel Hicks.
When the body of a missing Navy commander is found, Gibbs and his team are ordered to work with former FBI agent Tobias Fornell, the private investigator who was hired to find him.
After McGee and Torres visit the home of a high schooler who witnessed a hit and run, her parents flee with their daughter, leaving NCIS in the lurch.
Torres and Bishop go undercover as a criminal couple for hire during a sting operation.
An NCIS person of interest in a bribery and fraud case is found murdered after a runner is led to his body by a strange voice. Also, McGee and Delilah disagree on whether to find out the baby's sex.
After a petty officer is found murdered, McGee spends hours on the victim's ham radio trying to locate a key witness. Also, Palmer asks co-workers to donate to a charity that builds playgrounds for kids of all abilities.
After Reeves sees his friend get kidnapped, the NCIS team discovers the primary suspect disappeared two days ago with confidential military information. Also, a photo from McGee's teenage years becomes a popular meme.
The NCIS team, including recently transferred Special Agent Jacqueline Sloane, investigating the kidnapping of a sailor during a storm that shuts down Washington DC.
The episode picks up several days after the chopper takes off from Paraguay leaving Gibbs and McGee behind.
The stress of McGee and Delilah's upcoming wedding lands Delilah in the hospital; the NCIS team investigates the mysterious death of a healthy, young petty officer aboard a Navy destroyer.
The team partners with the Mounted Police to solve a series of murders in a National Park.
The murder of a Marine is linked to an old dirt bike gang Torres joined while undercover.
McGee and the team race to find the hacker responsible for infecting a vice admiral's laptop with ransomware.
The team must rely on an irritable Vietnam War veteran to solve a Marine's murder.
To honor a sailor's dying wish, the team reopens a murder case that was originally ruled an accidental death.
McGee's apartment is torn apart by a robber looking for a valuable item hidden by the previous tenant, a convicted criminal.
Bishop is more determined to avenge her boyfriend's murder when the team finds a new lead in the Chen case. In the meantime, Torres teaches his fellow agents the art of pick-pocketing.
When Abby's homeland security think tank is compromised, the team realizes that a theoretical terror playbook has been stolen.
The team partner with "The Sherlocks" - one of whom is Anthony DiNozzo, Sr. - to investigate the murder of a petty officer outside D.C.
During a hit-and-run investigation, Palmer tries to prevent a stranger from jumping off the ledge of a building.
When Gibbs spots the brother of a Most Wanted suspect, he assumes an old alias and goes undercover with their anti-government militia.
The team searches for new leads when an undercover mission to apprehend a businessman who's committing acts of terrorism to manipulate the stock market is comprised.
Ducky looks back on a choice he made 37 years ago when evidence in the murder of a Navy captain is linked to his dead mother.
The team investigates threats against Congresswoman Jenna Flemming, while Vance oversees temporary protection detail.
Bishop questions her previous work at the NSA when she's sent to Gitmo to collect evidence for a Navy chaplain murder case. In the meantime, her brothers visit for Thanksgiving and want to know from her co-workers who she's dating.
Torres breaks protocol when he identifies a suspect that is wanted by ICE; Abby, McGee, and Bishop try to woo Anthony DiNozzo, Sr. Into subletting his son's apartment.
When a petty officer escapes from her kidnapper, the team finds a connection to her missing husband.
Gibbs sends Bishop and Quinn to Philadelphia to work with MI-6 Officer Clayton Reeves on the murder case of a British operative. Meanwhile, Quinn deals with the NCIS case that caused her to leave the field.
Gibbs, Quinn and Palmer head out to sea when the body of a navy lieutenant is found on a destroyer during a tiger cruise.
A marine sergeant is killed when she falls from a building, but her doctor, Grace Confalone, risks breaking patient confidentiality and urges Gibbs to investigate the death as a murder.
NCIS uncovers a bomb plot and a long-running theft ring while investigating a death at a Quantico reunion. Meanwhile, Torres and Quinn adjust to life on Gibbs' team, including new seating arrangements in the squad room.
Two new agents join the team.
The NCIS, FBI and MI6 teams continue the international manhunt for an escaped British spy who's targeting current and former agents. Anthony DiNozzo bids farewell to NCIS.
The team continues the international manhunt for an escaped British spy while a colleague fights for their life in the ICU.
Tony's identity is stolen by multiple perpetrators who proceed to blackmail senators.
The wife and mistress of a Navy Public Affairs officer accuse each other of murdering him, so the team must figure out who's lying.
Gibbs tries to connect with a wounded Special Ops sniper when an American couple is attack in the same area in Iraq where the sniper's team was ambushed.
Dr. Cyril Taft feels the rush of an NCIS case when he's assigned to operate on Gibbs' suspect and discovers key evidence.
The team partners with the FBI to rescue the kidnapped daughter of Sarah Porter.
The team investigates the murder of a deep-sea diver outside a high-tech decompression chamber where the body and suspects have to stay for four days.
The investigation of a seaman's murder uncovers the resurface of a human-trafficking ring, while McGee hopes to spend the night with a colleague during a power outage.
Gibbs and his team work with Pride and the New Orleans team to find Abby's brother and figure out why the passengers and crew of a private plane he catered were poisoned.
During an investigation, Abby is trapped in a pharmaceutical lab when armed men enter the building and take hostages.
Vance partners with Gibbs and returns to field duty when a murder case is connected to a former NCIS agent he put in jail for stealing evidence.
Gibbs fights for his life after being shot by Luke. Meanwhile, Agent Dinozzo and Johanna travel to Egypt to take down The Calling