A security system detects a bug on the person of the SecNav; Tony contacts the NSA, where he finds a two-year-old paper describing such a breach; one man dies; the author helps the gang to nail the bad guys; Gibbs wants to keep her around.

A clown kills a Marine corporal; while investigating, Gibbs and company find Fornell, Diane, and her boyfriend, who says that he's someone else, and that he knows the clown. All the pieces come together, and the team bust the main bad guy.

Within 30 miles of Washington, DC, eight kids in Navy and Marine Corps families have suddenly become badly ill, requiring treatment in ERs and ICUs; Gibbs and company investigate; Carol, of the Naval Medical-research Center, joins the effort; immediately the number of sick kids grows to 14, then 19, 23, 28, and 34, and none of them responds to treatment. Duckie announces the first fatality, who was a veteran of Vietnam, then he describes the cause of death and the treatability in the kids. Abby says that she has misidentified the particular nature of the illness, so she, Jimmy, and Carol keep working, and they eventually nail it. Abby gives Jimmy a lecture about kindness, optimism, and parenthood. Then the gang identify an international traveler who in many places has recently encountered many kids and the fatality. Meanwhile Vance has three tense chats with his estranged father-in-law and then a nicer one.

A Navy petty officer dies of gunfire in a park in Washington, DC; Gibbs and company investigate; Hollis helps. The gang find an accessory for hire to a terrorist. An explosion kills six and injures 22, including Delilah. [Continued.]

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.

Ellie's gut says that Parsa is in his home district in NW Pakistan; there a SEAL team captures him alive. Gibbs, McGee, and Ellie fly to an aircraft carrier, where Gibbs and Ellie question him. Ellie gets into a bind, but Gibbs saves her.

An overturned van in Washington, DC, contains body armor, which Abby shows to be faulty and fatal; Gibbs and company find the body of the driver, then the source of the bad gear and the path to the troops in the Middle East. Justice wins.

When Tony seeks to question a man who appears to impersonate a Naval officer, the man draws a pistol; Tony kills him. The dead man proves to be a private investigator who had become involved in international intrigue. The gang sort it out.

Backstage before a charity-benefit concert in Washington, DC, an explosion kills a Navy petty officer first-class; Gibbs and company investigate; Abby fingers the bad guy, McGee finds out about him, and Gibbs and Ellie catch him at work.

In New Orleans, Louisiana, two local special agents of the NCIS, Pride and LaSalle, start to investigate the death of Dan McLane, who was not only a member of the US House of Representatives but also both a retired Naval Reserve commander and a retired agent of the NIS (before the NCIS); Dan had worked with Franks and had served as a mentor to both Pride and Gibbs; King Pride, a former partner of Gibbs, goes to Washington, DC, and spends time with Gibbs. Inter-agency intrigue begins; the FBI seizes control; a joint FBI-NCIS effort proceeds; Fornell joins the hunting party; the Gibbs team start producing results; King and Gibbs use an old-school technique; LaSalle in Nola says that he suddenly feels new respect for the Great Lakes office. An FBI agent in Nola dies in the same way as Dan; King goes back there, and Gibbs and Ellie go with him; Abby provides answers; the bunch in Nola follow the breadcrumbs left for them. [To be continued.]

While investigating the death of a US congressman, the Gibbs team and the gang in Nola continue to seek both a killer and a connection to an old case. Another man dies. Ducky suggests a theory, and the bunch put all the pieces together.

Delilah finds a clue, which may help to solve the alleged death of a US Navy lieutenant, Kit, two weeks ago in Budapest, Hungary; then her boss orders her that she has never seen it; however, she surreptitiously speaks with Tony, McGee, and Gibbs, who sends Tony and McGee to check for chinchillas and to find evidence. Then Tony and McGee meet a man who claims to be an agent of the CIA, who tells a wild story to Vance and Gibbs, and who asks them to back off; still, though, Vance tells Gibbs and Ellie to continue pushing quietly. Abby and Jimmy, interpreting the evidence from the chinchilla hunt, paint a picture of Kit, who appears to be alive. The director of the CIA backs out and leaves the case to the NCIS. Delilah finds that Kit has left breadcrumbs; Kit encounters Gibbs and Ellie, and Tony joins them. Kit provides illuminating answers, and the gang finish putting the pieces together, so Tony and McGee grab the bad guy, and McGee and Delilah give Kit a ride.

A distracted texting driver runs over the dead body of a Naval officer; Gibbs and company investigate; they find a connection to a previously unreported rape of a drugged victim. The team figure out everything, and they catch the bad guy.

During a court-martial of an Army first lieutenant, a Marine photojournalist disappears before he can testify; while Gibbs and company lend a hand, they find the body of the Marine, solve his murder and another one, and arrest two bad guys.

Tony goes to France to escort an admiral's daughter, Amanda, back to DC; meanwhile Gibbs and company investigate a death. Tony and Amanda run into trouble, work it out, find solutions for all seven executions, and report to the admiral.

The team must investigate a prison escape without Gibbs as he heads to Stillwater after his father's death.

Gibbs and McGee are shot down in a Naval helicopter over remote parts of Russia while on a mission to escort an NCIS computer geek safely home. Meanwhile, the gang at home anxiously work to help bring them all home safely.

A Navy Commander is murdered near the White House, it is learned that he was on his way to talk to the President. Gibbs and his team must determine if it is because of his relationship with the President or because of his marital problems.

Flashbacks into his past help tell the tale for Dr. Mallard as he and Bishop travel to England in search of answers to find out why an Englishman murdered in the United States would have a list of deceased Navy men on his person.

After a scientist is decapitated by a strangulation device in a park, Gibbs and his team search for the woman who was her former research partner in Russia in order to learn who is behind her murder. They learn it may be a familiar foe.

While the NCIS team is on a training exercise with CGIS Special Agent Abigail Borin, Gibbs spots a man overboard. It leads him to board another ship called The San Dominick, and he soon discovers that it has been taken over by pirates.

The wife of a Navy Seal is murdered, and the NCIS team discovers she has a background in criminal forensics and recently visited a serial killer in prison seeking his help with another sociopath. Gibbs and company must figure out who it is.

While investigating the death of a retired Marine Master Sergeant, Gibbs and the NCIS team discover there is a possibility that his death may be connected to another Marine who was MIA from the Vietnam War.

A former Navy hospital corpsman gives aid to the victims of a wreck; local officials arrest her for practicing medicine without a license; Gibbs and company find the other driver, his killer, and a lawyer who makes a deal for the corpsman.

On the eve of Thanksgiving, DiNozzo and Bishop experience a weather delay at the D.C airport when Gibbs informs them of an elevated terror threat specific to area airports. An impostor posing as an air marshal leads them to the real threat.

Tis the season to be hacking. In a Christmas letter to his father, McGee describes in detail a case in which he, Gibbs and the rest of the NCIS team investigate the hackers who are responsible for the Internet going down in the D.C. area.

The NCIS team investigate a series of crime scenes that appear to be copycats of previous cases. Meanwhile, two of Gibbs' ex-wives show up at a crime scene to discuss something important with him.

Gibbs and the rest of the NCIS team, along with FBI agent Fornell are on the hunt for an American born terrorist who was detected in Syria but is now back in the D.C area.

When an openly-gay Navy Lieutenant who was about to be awarded the Medal of Honor is murdered, Gibbs and the team investigate. Meanwhile, Breena goes into labor.

DiNozzo returns to the military academy he attended as a teenager after a murdered Marine and alumni of the school is found clutching the photo of a current student. Also, Bishop and her husband invite Gibbs and the team out for a special dinner.

Gibbs and the NCIS team continue to track down the Russian terrorist Sergei after two young Marines are killed in a bombing. Agent Fornell struggles to cope with the recent shooting death of his ex-wife at the hands of Sergei.

A covert identity created for one of Gibbs' undercover cases 20 years ago resurfaces after a murder victim is found living under the alias.

After a Vice Admirals aide is murdered, Gibbs and the NCIS team theorize that it was because of a valuable painting in her office. DiNozzo's father is more than happy to help with the investigation by sharing his knowledge of the artwork.

After the body of a thief is found in a Marine's house, NCIS discovers the calling card of a terror group Delilah and the Department of Defense have been tracking. Margo Harshman guest stars.

A petty officer's murder provides clues to a 40 year unsolved airport bombing which Gibbs and DiNozzo have been reexamining recently.

DiNozzo is partnered with his girlfriend, ATF Special Agent Zoë Keates, after evidence reveals that the murder weapon in an NCIS case was originally purchased for the controversial ATF sting, "Operation Fast and Furious." Also, Anthony DiNozzo Sr. returns to town for a special dinner to meet his son's girlfriend.

Gibbs and Bishop travel to Afghanistan when a murder investigation is linked to a terror group holding a Marine hostage. Meanwhile, Tony is annoyed when McGee steals his gig as the face of the NCIS recruitment brochures.

Special Agent Ned Dorneget from NCIS cyber operations assists the team when a Navy ensign who worked in the Office of Naval Intelligence is murdered. Also, the team discovers that Jake and Gibbs have become good friends.

The NCIS cyber case turns into a united global effort after evidence confirms "The Calling," an international terrorist group that recruits children through the Internet, has been purchasing German S-mines off the black market.

NCIS feverishly investigates a global terrorist group that is recruiting teens via the Internet, following a deadly bombing overseas that results in an emotional and surprising loss for the team.

Gibbs fights for his life after being shot by Luke Harris. Meanwhile, Agent Tony DiNozzo and CIA officer Joanna Teague travel to Egypt to take down The Calling.

Gibbs asks the team to work on a case with a DEA Agent to bring down a drug dealer who is connected to Gibbs and the agent.

Hours after calling Gibbs about a possible case, a Marine is found dead in Quantico; McGee and Bishop pose as a married couple.

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.

During an investigation, Abby is trapped in a pharmaceutical lab when armed men enter the building and take hostages.

When a petty officer is murdered, the crime matches a local serial killer's method of operation; Delilah and McGee prepare to move in together.

NCIS investigates the death of a retired Navy officer whose son was convicted of a murder 16 years earlier. A flawed forensic test from that time can prove whether the son is the real murderer or if he is innocent of the crime.

DiNozzo is reunited with his ex-girlfriend, Jeanne Benoit, when insurgents in South Sudan attack a group of volunteer doctors, including her husband. DiNozzo and McGee travel to the crime scene for the joint murder and kidnapping case and join the search for the missing doctors. Jon Cryer and Scottie Thompson return.

A Petty Officer, accused of killing an ex-girlfriend, is set free on mistrial. Professing to be innocent he asks NCIS to investigate and if necessary court martial him. Bishop and her husband have marital problems.

The Secretary of Defense turns to NCIS to help a sailor dying from leukemia locate a bone marrow transplant after two of his siblings are killed in the line of duty. Meanwhile, Bishop returns home to Oklahoma for Thanksgiving after learning of Jake's cheating.

After Ducky is attacked by a man claiming to have information about his half-brother who died decades ago, the NCIS team searches for the perpetrator, as Ducky recalls the final emotional days he had with his sibling. Also, with the holidays approaching, Bishop and Jake (Jamie Bamber) discuss the future of their relationship. Adam Campbell returns as "Young Ducky."

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.

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.

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 team partners with the FBI to rescue the kidnapped daughter of Sarah Porter.

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 member's plans are interrupted when they discover discrepancies in what appeared to be an open and shut case.

Gibbs tries to connect with a wounded Special Ops sniper when an American couple is attacked in the same area in Iraq where the sniper's team was ambushed.

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.

Tony's identity is stolen by multiple perpetrators who proceed to blackmail senators.

A family owned mortuary ordered a bunch of caskets from an overseas company. When they go to unload the shipment, they find that one of the caskets already has a dead body. There are ties to a prison break of someone NCIS helped put away.

Gibbs and the team investigate a military home invasion thwarted by a 14-year-old, while Vance and Fornell head to London to continue pursuing the escaped British spy.

The team continues the international manhunt for an escaped British spy while a colleague fights for their life in the ICU.

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 investigates a car explosion with a connection to an agent who went missing six months earlier; Gibbs asks NCIS Special Agent Alex Quinn to shadow his team.

Torres and Quinn adjust to life on Gibbs' team while investigating a death at a High School reunion.

A marine sergeant falls from a building, it appears she attempted suicide, but her psychiatrist, Dr Grace Confalone, urges Gibbs to investigate her attempted murder.

Gibbs, Quinn and Palmer head out to sea when the body of a navy lieutenant is found on a destroyer during a tiger cruise.

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.

When a petty officer escapes from her kidnapper, the team finds a connection to her missing husband.

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.

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.

The team investigates threats against Congresswoman Jenna Flemming, while Vance oversees temporary protection detail.

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 searches for new leads when an undercover mission to apprehend a businessman who's committing acts of terrorism to manipulate the stock market is compromised.

When Gibbs spots the brother of a Most Wanted suspect, he assumes an old alias and goes undercover with their anti-government militia.

During a hit-and-run investigation, Palmer tries to prevent a stranger from jumping off the ledge of a building.

The team partner with "The Sherlocks" - one of whom is Anthony DiNozzo, Sr. - to investigate the murder of a petty officer outside D.C.

When Abby's homeland security think tank is compromised, the team realizes that a theoretical terror playbook has been stolen.

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.

McGee's apartment is torn apart by a robber looking for a valuable item hidden by the previous tenant, a convicted criminal.

To honor a sailor's dying wish, the team reopens a murder case that was originally ruled an accidental death.

The team must rely on an irritable Vietnam War veteran to solve a Marine's murder.

McGee and the team race to find the hacker responsible for infecting a vice admiral's laptop with ransomware.

The murder of a Marine is linked to an old dirt bike gang Torres joined while undercover.

The team partners with the Mounted Police to solve a series of murders in a National Park.

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.

Gibbs, McGee and Torres travel to a remote area of Paraguay, controlled by a violent group of rebels, in an attempt to locate a missing Navy Seal who disappeared during an unsanctioned trip.

The team continues their search for Gibbs and McGee two months after they went missing fighting rebels in Paraguay; Vance and Torres are summoned to a congressional hearing regarding the fallout from the Paraguay mission.

NCIS investigate the body of a murdered Navy lieutenant, who disappeared over a year ago; Gibbs and McGee must pass a psych evaluation to officially resume working.

When an undercover cop suddenly reappears after faking their death 10 years earlier, chaos ensues.

The NCIS team, including recently transferred Special Agent Jacqueline Sloane, investigating the kidnapping of a sailor during a storm that shuts down Washington DC.

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.

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.

Gibbs begins his own investigation when a convicted felon swears he was framed; FBI agent Fornell joins the team.

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.

Turkey day plans are on hold while tracking international arms dealer Andre Yorka, who recently murdered an MI5 officer who was Sloane's close friend. Also, Abby races Delilah to the hospital when labor for the twins starts 3 weeks early.

Torres and Sloane run protection detail for a U.S. senator in Afghanistan during the holidays and must return to the States when they learn the senator's son is in the ICU.

Torres and Bishop go undercover as a criminal couple for hire during a sting operation.

A Navy Lieutenant JAG lawyer that appeared to have a happy life is found dead by her parents in an apparent suicide. Capt. Bud Roberts helps in the investigation.

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.

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.

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.

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.

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 headquarters are evacuated when the team finds a body and bomb materials on the roof of the squad room.

Gibbs is granted protective custody of a 10-year-old orphaned refugee when a case reveals she is the target of a violent gang.

NCIS searches for a petty officer suspected of assault who escapes when the sheriff transporting him crashes into a lake. Also, Torres works closely with Annie Barth, a key blind witness who heard vital evidence needed to solve the case.

A daughter begs Gibbs to investigate her mother's murder because she believes the police convicted the wrong man. Abby receives a hard to get reservation at a new restaurant that is cold like an igloo.

When evidence reveals an NCIS team member is a hitman's latest target, the team must search through old case files to determine who is seeking vengeance.

While Gibbs attends the memorial service for a friend who was lost at sea, he discovers that the deceased has been hiding in a fallout shelter after his boat was attacked and he swam to shore.

Sloane is certain she saw the man who tortured her in Afghanistan, leading Vance and Gibbs to fear she'll risk everything to destroy him.

Vance is still missing, and Gibbs is assigned as acting director while the team searches his whereabouts.

A Navy lieutenant's peculiar neighbors are the key suspects in his murder; Torres has a crazy night out with Palmer.

The team investigates an explosion outside the home of a Navy petty officer and a popular reality TV star.

While Gibbs is on a quiet vacation in the woods, he is interrupted by his friends, Fornell and Brooks, and a case near his cabin.

The team works to exonerate a Marine serving a life sentence for murder after the discovery of a 50-year-old tape recording of the victim.

At a Halloween crime scene, Torres recognizes the NCIS victim as a former friend from federal law enforcement training, and Jimmy thinks his lab may be haunted!

The theft of a street artist's mural leads the team to investigate a conspiracy regarding a Navy contractor and the safety of ocean mammals.

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.

After the lead suspect of an unsolved high-profile burglary case is released from prison, the team resumes their investigation with an undercover stakeout.

The team's holiday plans are put on hold after the murder investigation of a Navy veteran includes the discovery of a newborn baby with no identification.

The Secretary of Defense shuts down Gibbs' murder investigation and demands that McGee and Torres be arrested for their actions in the case.

An old family friend beseeches Gibbs to join him on a road trip to search for a missing military I.D. bracelet.

After a malnourished and confused 9-year-old is found hiding in a storage unit, the team reopens an old missing persons case that Special Agent Ziva David had a personal interest in.

McGee reluctantly visits his former high school after the unique computer password he used as a teenager is linked to the murder of a department of defense contractor.

The team investigate a fatal man overboard case at sea; Torres is assigned to mentor three high school students.

Jimmy is torn between family and work after his father-in-law asks him to tamper with evidence from the team's current murder investigation.

Vance is notified by the Pentagon that the nuclear submarine Gibbs and Bishop are aboard to conduct a murder investigation has gone radio silent.

After Torres wakes up on a dilapidated fishing boat covered in blood, the team helps him piece together the last 12 hours.

The team searches for an active shooter following a lockdown at a naval hospital.

The team 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.

Kasie solves a 30-year-old murder case, but a loophole in the legal system may set the suspect free; McGee visits an elite technology company that is offering him a highly paid position.

After the team finds a secret government bank account that's funding a nationwide network of vigilante justice, they must determine who is acting as judge and jury.

The team investigates the murder of Marine Gunnery Sergeant Richard Wilson who was hailed as a war hero for his efforts overseas; Gibbs turns to Dr. Confalone for advice after uncharacteristically abandoning the team at a crime scene.

Fornell pleads with Gibbs to do whatever is necessary to take down drug dealers in the area after his daughter is hospitalized from a drug overdose; Gibbs is haunted by aspects of the case.

Ziva surprises Gibbs with a cryptic warning, prompting him to question why she remained underground for years while being presumed dead, and what led to her return.

With their lives in danger, Gibbs and Ziva's rogue investigation takes an unexpected turn when a possible terrorist plot is revealed.

After a body is found hidden under an 18-wheeler delivering to the Navy yard, the team tracks the vehicle's previous locations to pinpoint the crime scene and suspect; Sloane encourages the team to talk about Ziva's recent reappearance.

The team links a bizarre crime scene at Arlington National Cemetery to a string of attacks on homeless veterans; Vance orders McGee, Bishop and Torres to complete hours of evidence garage cleanup duty for withholding information.

The team investigates a Marine Corporal after she finds a gun in her house. The gun is linked to a murder, but the Marine had no connection with the victim and was fast asleep when the crime was committed.

When a Petty Officer's son is found murdered at his welcome home from prison party, evidence suggests that Kasie's lifelong best friend, Dante Brown, is the suspect.

While investigating a Marine's murder, the NCIS team uncovers a network of live-streaming hidden spy cameras in the rooms of a Virginia motel.

The NCIS team investigates the murder of a musician in the Navy's most elite band, which performs at diplomatic events around the world. Gibbs gives McGee the lead when he unexpectedly takes some leave time.

The team investigates a petty officer's murder that was live-streamed on a popular gaming app. Also, Gibbs is asked to look after his 9-year-old neighbor, Phineas, when his mom must leave on a last-minute trip.

Gibbs and the team help Ziva with the "one thing" she said she'd take care of before returning to her family.

Gibbs must face the consequences of helping Ziva with "the one thing" she said she'd take care of before returning to her family.

The NCIS team investigates an F-18 crash and subsequent disappearance of the pilot; McGee reluctantly discusses a very personal decision with his teammates

After a body is found at an unmanned aerial vehicle testing site, the NCIS team must determine if the death was murder or an accident. Also, Palmer carefully interviews medical examiner assistant candidates.

After Torres and Bishop are victims of a hit-and-run, Torres fights for his life in the ICU.

The lead suspect in an NCIS murder investigation is a woman Gibbs' friend, Phillip Brooks (Don Lake), met on a dating site. Also, Sloane has a secret admirer on Valentine's Day.

While investigating the suicide of a retired Navy officer who left a rare, valuable - and possibly stolen - coin to the National Museum of the Navy, the team imagines themselves in his life story in order to piece together how the coin ended up in his possession.

The NCIS team investigates the death of a Navy Petty Officer murdered the same way as his parents a decade ago. They stumble across a storage container filled with dollhouses that display recreations of murder scenes. Also, the team agrees to clean out their living spaces, but some have a harder time saying goodbye to their possessions than others.

The team searches for answers when the body of a well-regarded Navy technician in the Reserves is found floating in a lake where a popular community event is being held. Also, Sloane is caught off-guard when her daughter, Faith (Kate Hamilton), makes an unexpected request.

Three gun thugs fleeing a failed robbery enter the diner where Palmer and Kasie are eating. A hostage situation ensues.

While investigating an off-base burglary at an Admiral's residence, NCIS becomes involved in a case of an older man that claims to be a Pearl Harbor survivor. He wishes to have his remains buried on the USS Arizona.

Gibbs and Fornell attempt to track down the leader of a drug ring who supplied drugs to Fornell's daughter; the team deals with the case of a missing cadaver from the NCIS autopsy room.

In 1980 Gibbs and Ducky became involved in their first case together. Now it has come back to haunt them.

The discovery of two dead bodies leads the team into the world of modern day treasure hunting as Gibbs and Fornell get deeper into their search for the drug kingpin.

McGee and his wife Delilah's Bahamian vacation turns into a high-stakes mission when a case NCIS is tracking of a dead escape room manager has ties to the island. Also, Gibbs fears the worst when his search for Fornell leads to blood.

Gibbs and Fornell's crusade to find the head of the drug ring responsible for Fornell's daughter Emily's overdose comes to a climax. Also, Gibbs and Vance finally let the team in on a case that has dangerous implications.

Following a tip about smuggled weapons, Bishop and Torres have a shoot out and find themselves locked in cells in the suspects house.

NCIS investigates the murder of a Navy officer who was killed while driving home a recently released inmate. Also, Gibbs helps Palmer deal with personal trauma.

When Sloane's name is discovered in Afghanistan at the site of an abandoned bus with a dead driver, Gibbs accompanies her on a trip to find a group of girls who were kidnapped from the bus. Also, McGee, Bishop and Torres track down a hacker who emailed compromising information to the Taliban.

NCIS dives into the competitive world of food trucks after finding a man frozen to death in the back of one.

NCIS is called in when missile falls off the back of a transport vehicle, which leads them to multiple dog murders. One of the team takes unexpected action when a suspect is found.

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.

Evidence from the stabbing of a Marine Sergeant is a familial DNA match to Torres, bringing up questions about his family history.

The team investigates when a cyclist is killed in a hit and run. Gibbs prepares to testify against a financial advisor who stole millions from his Navy clients.

NCIS tracks a stolen laptop to the uncle of a young boy, Phineas, Gibbs' former neighbor.

When members of an NCIS Regional Enforcement Action Capabilities Training Team (REACT) are killed during an explosion, NCIS Special Agent Jessica Knight, the lone surviving member, joins the team to find out what happened.

While pursuing a dangerous arms dealer, the team is shocked when Bishop shows new impressive abilities. Gibbs and Marcie suspect that the killer they've been tracking may be onto them.

A security system detects a bug on the person of the SecNav; Tony contacts the NSA, where he finds a two-year-old paper describing such a breach; one man dies; the author helps the gang to nail the bad guys; Gibbs wants to keep her around.

The theft of a street artist's mural leads the team to investigate a conspiracy regarding a Navy contractor and the safety of ocean mammals.

A Petty Officer, accused of killing an ex-girlfriend, is set free on mistrial. Professing to be innocent he asks NCIS to investigate and if necessary court martial him. Bishop and her husband have marital problems.

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.

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 compromised.

Ellie's gut says that Parsa is in his home district in NW Pakistan; there a SEAL team captures him alive. Gibbs, McGee, and Ellie fly to an aircraft carrier, where Gibbs and Ellie question him. Ellie gets into a bind, but Gibbs saves her.

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.

The Secretary of Defense turns to NCIS to help a sailor dying from leukemia locate a bone marrow transplant after two of his siblings are killed in the line of duty. Meanwhile, Bishop returns home to Oklahoma for Thanksgiving after learning of Jake's cheating.

While investigating the death of a retired Marine Master Sergeant, Gibbs and the NCIS team discover there is a possibility that his death may be connected to another Marine who was MIA from the Vietnam War.

Gibbs and Bishop travel to Afghanistan when a murder investigation is linked to a terror group holding a Marine hostage. Meanwhile, Tony is annoyed when McGee steals his gig as the face of the NCIS recruitment brochures.