After traveling to Texas to escort a key witness to the trial of an infamous arms dealer, Sonja and Special Agent Pride are ambushed.

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

Ziva surprises Gibbs with a cryptic warning, prompting him to question why she remained underground for years while being presumed dead by family and friends.

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

The NCIS team digs deep to investigate a Navy lieutenant who's accused of trying to murder her husband but has no memory of the attack; Kasie navigates a potential medical scare.

Agent Knight goes viral for saving a mother and child from a potentially fatal car accident.

NCIS works to solve the murder of a senator's daughter who has a rebellious reputation and large online following; Jimmy gets competitive with an old college rival.

NCIS must investigate a string of Russian spy encounters that may be linked to a suspicious murder; Jimmy accidentally makes a confession that could change the course of his relationship with Knight.

After the body of a Marine lieutenant is found hidden under an 18-wheeler, the team tracks the vehicle's previous locations to pinpoint the crime scene and suspect; Sloane encourages the team to sit down and 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 for withholding information.

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

A lonely Chicago subway clerk (Sandra Bullock) falls for the brother (Bill Pullman) of a comatose man (Peter Gallagher) she adored from afar.

A writer realizes that she is in love with her best friend and tries to stop him from marrying another woman, a guileless heiress.

A lonely Chicago subway clerk (Sandra Bullock) falls for the brother (Bill Pullman) of a comatose man (Peter Gallagher) she adored from afar.

A writer realizes that she is in love with her best friend and tries to stop him from marrying another woman, a guileless heiress.

During a blackout in New Orleans, Pride is determined to figure out who murdered a family friend's fiancé.

A Marine's murder reveals new clues in the first case LaSalle and Pride worked together; a Thanksgiving celebration at Pride's bar.

Wade's adopted son becomes a suspect after a series of Christmas burglaries turn deadly; Brody and LaSalle tease Sonja about the team's holiday gift exchange.

Special Agent Pride and the team investigate a Russian sleeper agent involved with Abby's brother; Sebastian goes to Washington, D.C., to work with Abby; Bishop drives all night to deliver a package and help the New Orleans team.

The staged suicide of a petty officer turns out to be murder; the team secretly works on an online dating profile for Pride.

A Mardi Gras celebration at Pride's bar is cut short when he and Mayor Douglas Hamilton (Steven Weber) are abducted by unknown assailants.

Evidence suggests that the man responsible for saving a lieutenant's life is a soldier who was captured in Afghanistan.

The NCIS team investigates the murder of a musician in the Navy's most elite band.

The NCIS team investigates a petty officer's murder that was livestreamed on a popular gaming app; Gibbs watches his 11-year-old neighbor when his mom must leave on a last-minute trip.

NCIS investigates Marine Cpl. Laney Alimonte after evidence suggests she murdered her neighbor while being treated for insomnia by a hypnotherapist; Gibbs befriends his new neighbors after the 9-year-old's baseball crashes through his window.

After a petty officer's son is found murdered, evidence suggests Kasie's lifelong best friend is guilty.

Gibbs and the team assist Ziva with "the one thing" she said she would need to take care of before returning to see her family.

As the team investigates a Mossad officer's murder in Virginia, Tony and Ziva pursue her father's killer.

Ignoring orders from Homeland Security, the team searches for Bodnar in order to avenge the murders of Eli David and Jackie Vance.

An investigator (Colin Hanks) from the Department of Defense scrutinizes the team's response to the Bodnar case; the team must determine whether a petty officer is suffering from paranoia when he claims he is being followed.

As the international hunt for Eli David and Jackie Vance's killer continues, questions are raised about the unconventional methods employed by Gibbs and the team.

Gibbs discovers a shocking connection between the murder of a naval officer and the director's decision to disband his team.

DiNozzo's investigation into a Navy lieutenant's suicide takes a surprising and deadly turn when it seems that it has a connection to a larger scheme.

When a naval commander is murdered, an old friend contacts Gibbs; his friend, now a senator, believes he's being framed because of his connection with the commander.

When Morgan is abducted, the members of the BAU team race against time to find him and save his life.

The team searches for an unknown subject who takes children while their parents are asleep; Morgan tries to find out who attacked him.

When an unsub targets the BAU, the team pursues the person who is responsible for the actions.

Reid plays a central role in the BAU's elaborate plan to take down a ring of hit men known as the Dirty Dozen.

When corpses are discovered in public places in Boston, a ride-sharing service may lead the team to the killer.

The BAU looks for a suspect and a motive when victims are found in truck stop restrooms in the South.

As the BAU welcomes back Emily Prentiss, they're called upon to investigate the disappearance of three women.

The team searches for a serial killer along the Appalachian Trail in rural Virginia.

Special Agent Pride and the team uncover a domestic drug ring -- led by Sonja's childhood friend, Marion Watkins (Samaire Armstrong), that is producing cocaine.

A Navy captain is murdered during an appearance on a local radio show; Pride's daughter comes home to talk about her plans for the future.

Agent Brody sees a connection between the case of a sailor struck by a party bus and the death of her sister; the team gets ready for the city's St. Patrick's Day celebrations.

After Pride's daughter is attacked on campus, the team finds a surveillance van loaded with pictures of the special agent's every move.

The team investigates when a Navy lieutenant is murdered during a traditional funeral procession in the French Quarter honoring the recently deceased.

When a Navy lieutenant dies during a secret visit to a general's hotel, agent Pride and the team are asked to break protocol for the investigation.

While visiting her family's restaurant in the French Quarter, a Navy culinary specialist is the target of an explosion; in D.C., Brody tracks a lead in the Gen. Leak case.

When a car salesman is found bludgeoned to death, Detectives Briscoe and Green search for his last customer.

A cosmetics tycoon (Lucie Arnaz) is involved in controversial stock transactions, scandalous affairs and hormone-replacement therapy.

A media-savvy attorney (Gregory Hines) defends a black teenager accused of shooting an off-duty police officer.

Detectives investigating a cabdriver's death discover his last fare was a gifted writer with a violent streak.

After a woman's body turns up in the East River, the detectives discover she recently had attended a professional football player's birthday party.

The detectives attempt to identify a body that was found floating in the Hudson River; after the victim is identified, her husband becomes the prime suspect.

A war correspondent who reputedly endangered U.S. troops in Iraq gets shot in the back with a military-issue handgun.

The lead suspect in the murder of a Manhattan executive claims his knowledge of the crime came from a psychic vision.

Investigators identify multiple suspects in the murder of the admissions director at an ultra-elite private school, including its headmaster (guest star Roger Rees).

The corpse of a Russian model shows many old injuries, convincing the detectives that she had been the victim of abuse.

A sniper shoots four people at random in Manhattan and causes a citywide panic; Jack and Serena uncover a shocking truth behind the shootings.

A comic's infant son dies after being dropped from a high-rise window, leading detectives to a dark secret.

The detectives follow a string of mysterious homicides; a woman runs over her unfaithful husband; a murdered woman has an uncertain relationship to her brothers.

The detectives stumble upon a serial killer while investigating the rape and murder of a teenage girl.

A bounty hunter turns up dead while trailing a fugitive rapist and bookstore heir.

A carjacking involving SARS forces detectives to search for the initial patient infected to prevent an outbreak.

Detectives link the murder of an actress to a member of her therapy group, then focus their attention on a Tony-winning songwriter.

Detectives investigate a fire that ripped through a 300-plus audience at a rock concert, killing 23 fans.

When an attorney is found dead near the body of a private escort, the team must piece together what connected the two seemingly random victims; Jubal's connection with one of the victims makes finding the killer much more personal.

After a truck filled with armor-piercing rifles is hijacked, the team works to discover who stole it, and what they have planned for the stolen weapons; a friend from OA's past returns to help with the case, but OA isn't sure he can trust him.

After the police ignore a desperate father's plea for help, he abducts a billionaire's daughter and holds her hostage in a safe room until his own missing child is returned to him; Jubal puts his hostage negotiation skills to the test.

When the team is called to the scene of a murder, it quickly suspects political motivation; Maggie contemplates a decision that could affect her entire career.

Jess LaCroix and his team come to help OA find a fugitive LaCroix arrested years ago after a bus with 26 students goes missing, and he's the main suspect.

The team investigates a drug deal gone bad after the body of a college student is found; Detective Hailey Upton temporarily joins the team and finds her investigative methods clash with the Bureau's more buttoned-up environment.

Power is knocked out in Los Angeles, and the team must help a teen pilot and his girlfriend who are lost over the Pacific without any radio contact; Walter must look after a group of Ralph's classmates; Cabe tries to tell Allie that he loves her.

Team Scorpion must prevent an incoming tsunami from hitting a vulnerable nuclear power facility; Toby secretly helps his ex-fiancee retrieve her stolen identity.

On Valentine's Day, Team Scorpion must help a doctor and pilot who are trapped inside a helicopter; Toby and Happy wait for news on their fertility results; Sylvester realizes that he may have feelings for Florence.

After two Marines are ambushed, the NCIS team finds the investigation leads back to Gibbs' hometown, where secrets about his past are revealed.

A murderous psychopath taunts the team by leaving clues to the next victim's identity during the week of Halloween.

Gibbs second-guesses himself when Vance assigns a rookie to work with him on the team's investigation into a deadly bank robbery.

Emily looks to the BAU for help when tracking an international serial killer; the BAU deals with Morgan's departure.

The BAU hunts for an Unsub who deliberately disfigures victims; Rossi and his ex-wife have an uncomfortable reunion.

The BAU plays a dangerous cat and mouse game with a convicted serial killer who may have information on the whereabouts of two kidnapped boys.

Hotch is arrested by a SWAT team and suspected of conspiracy; when the team members scramble to prove Hotch's innocence, they discover a larger plot may be on the horizon.

New recruit Luke Alvez helps the team capture a killer who escaped from prison with 12 other convicts.

J.J. is shaken after investigating the case of two abducted children, and tells her husband about the events.

The BAU investigates when a bizarre hieroglyph is found under a deceased homeless man's armpit; Reid decides to take his mother out of a clinical study early to bring her home.

The BAU team is called in to investigate when male bodies are discovered that seem to be impossible to identify.

NCIS teams with Homeland Security when the murder of a Navy master diver is discovered to be linked to the chatter concerning a foreign attack on the city.

The NCIS team discovers a mole in the ranks while helping the Department of Homeland Security locate 900 pounds of missing explosives that are a threat to New Orleans.

The team joins forces with several federal agencies to stop a sniper who has been targeting crowded events in the city; FBI Special Agent Tammy Gregorio begins investigating Pride's team.

Pride faces more repercussions from the FBI after he helps a former Navy Intelligence Analyst who is the primary suspect in a multiple homicide case.

The team welcomes a new member, Special Agent Tiffany Wallace, as they search for killers who orchestrated a mass shooting at a media company; OA's personal connection with the case threatens to cloud his judgment.

The team races to stop an active serial killer after three women are found weighted down at the bottom of a lake; Jubal looks into an old closed case after there are multiple similarities to the recent victims.

When the leader of a drug cartel and one of the world's most wanted men is apprehended by the team, the entire FBI headquarters is put at risk when his henchmen unveil a plot to free him; Isobel must make a difficult decision.

A shooting at a quinceañera leaves two dead, but the team believes they may not have been the intended targets; Maggie is conflicted as the team decides the best plan of action for using a witness to take down their suspect.

The team searches for a young girl who was kidnapped from a cabin during a family vacation; Maggie questions her relationship with Nestor when she learns he hasn't been completely honest with her.

The team must infiltrate a drug trafficking gang after the robbery of a chemical plant leaves two customs agents dead; Nestor offers his help on the case, giving Maggie new insight into his character.

The mental faculties of the geniuses of Team Scorpion are impaired while trying to prevent the creation of a black hole; Paige must simplify the science for them; Florence and Sylvester grow closer when she helps him with a special project.

The team is taken hostage when it inadvertently crashes a bank robbery in progress; Sylvester's feelings for Florence grow.

Team Scorpion heads to the bayou to track down a cagey alligator to stop a deadly virus; Paige teaches Walter the concept of the "white lie"; Walter hits Cabe with a tranquilizer gun, and Toby must save his life.

The team must play a dangerous war game that leads to very real consequences for one team member.

The team is forced to rely on information from questionable sources while trying to stop a criminal bent on stealing government secrets.

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

The BAU investigates the case of two murdered families, where two high school students are the sole survivors.

Three children vanish while riding their bikes on the same path where a similar unsolved disappearance took place 30 years earlier.

A man who believes himself to be the brother of Dr. Tara Lewis arrives in town, knowing everything about Tara's family; Tara is unable to make contact with her real brother.

The BAU team investigates when the remains of a dozen people are discovered along a creek bed in Yakima, Wash.

While conducting a profiling course on his birthday, Rossi gets a call from serial killer Tommy Yates, who gives him the location of his latest victim.

The team investigates when home invasions involving casualties strike upscale neighborhoods in San Diego.

The BAU is called to investigate after three victims are discovered tied to stakes in the brutal Arizona desert.

The BAU investigates when several federal government employees, including a close friend of Walker's, succumb to symptoms of a heart attack; Reid anxiously awaits his trial date.

After the discovery of a petty officer's body inside a sports arena, evidence leads Pride and the NCIS team to a kidnapping case of another petty officer, last seen in Mexico.

The NCIS must come to the rescue of one of its own when Sebastian is kidnapped while dining in a restaurant with his mother; Sebastian relies on his gaming skills in a prison break.

The NCIS and the FBI investigate a private plane crash in the bayou that killed three sailors; Sonja and LaSalle interview candidates for a job opening on the team.

A Navy SEAL candidate is murdered weeks before his graduation; Wade seeks Pride's help when her adopted son announces his plan to join the Navy.

The team hunts a killer who is fatally shooting seemingly unrelated targets; new agent Tiffany Wallace experiences tension between her work as an FBI agent and the responsibility she feels to her community as a Black woman.

After a bomb leaves three people dead, the team presses a reluctant informant to gather information from his close friends who are under suspicion; OA and his girlfriend clash over where the informant's rights lie.

When a reporter is kidnapped and held without a ransom demand, the team must dig into her past relationships in order to pin down her assailant's motive; Isobel's relationship comes under fire when the case makes a connection to her boyfriend.

The team must track down two assailants who wear animal masks while committing armed robberies; Tiffany and Scola butt heads on whether to accept the local NYPD's offer to help in the investigation.

After a man is killed by an explosive package shipped to his home, the team attempts to capture the sender and intercept his latest deadly parcel; Maggie struggles to trust her younger sister.

The team rushes to track down two doctors abducted by a desperate father willing to do anything to save his son; Jubal's uncertainty in his family life affects his judgment during the hostage situation.

Team Scorpion must use their high IQs to win a softball game; Walter's secret night out with Florence puts Toby and Happy on edge.

Paige's maternal side goes into high gear when an unconscious boy gets stuck in the wheel well of an airborne airplane; Walter's white lie to Paige starts to take a toll on him; Paige realizes something is amiss.

The team heads to Northeast Africa, where they must carefully navigate a minefield to save the lives of local villagers; Paige and Walter's relationship takes a shocking turn; Toby and Happy make an important decision.

The hunt for a marine's murderer puts Gibbs on a collision course with an old friend, FBI agent Fornell.

The team is forced to put in overtime while searching for a suspect presumed dead when working on a case over Christmas.

McGee is held captive in a women's prison after a guard's murder leads to a takeover.

When a BAU member gets in trouble in Mexico, the team enlists the services of the International Response Team for help.

The BAU looks into the cause of several fatal car crashes involving drivers and pedestrians; Reid gets bad news.

The BAU investigates a series of disfiguring acid attacks on young men and women; Dr. Reid begins to settle into his new surroundings.

A mother steps forward with valuable information for the BAU to aid in their investigation of an unsub known as the bone crusher; Reid must adapt to a new set of rules in prison.

The BAU believes two unsubs may be operating simultaneously when victims killed in two different ways are discovered in the same city; the team grapples with keeping Reid safe in prison.

The BAU investigates an urban vampire who kidnaps his victims at night and holds them underground in the sewer system; Reid makes a difficult decision in prison.

The BAU investigates three similar crimes in which victims' remains are discovered in old suitcases.

The BAU investigates a workplace shooting committed by a state-of-the-art drone in Silicon Valley.

A sailor is murdered during a rowdy motorcycle rally in the city; LaSalle seeks personal advice from Gregorio.

After a member of the United States Navy Band is murdered in her home, Pride looks after the victim's nephew, who is the only witness to the crime.

The NCIS team investigates when a Marine corporal who is an amateur race car driver is in a fatal crash on the track.

Pride needs to protect a family friend engaged to the prime suspect in an ongoing NCIS and FBI cartel case.

When the CEO of a major brokerage firm is killed while surrounded by protesters, the team looks into who had the most to lose from his company's perceived manipulations; Scola's previous Wall Street career and the reasons he left come to light.

While investigating a mass casualty incident at a New York City restaurant, the team scrambles to determine if it was racially motivated and if there was more than one gunman; Maggie starts to notice troubling behavior from her co-worker Elise.

When five prominent men are gunned down at a trendy New York restaurant, the team's investigation brings them into contact with a lieutenant in Antonio Vargas' cartel, triggering a showdown between Isobel and Vargas.

After a young woman is killed on her way home from a lavish yacht party, the team investigates who she was and how she came to be at the event.

Maggie, OA and the team must stop a hacker who is disabling life-saving equipment in several New York City hospitals; Jubal's son waits for important surgery at one of the impacted hospitals.

The team finds a connection between bombings and a private veterans' club in New York City; Isobel tells a reluctant OA to recruit a former Army buddy for intel.

An unemployed executive deposits $400,000 in his savings account before being gunned down in his upscale brownstone.

When New York's most infamous baseball fan is stabbed to death in a bar, detectives suspect the killer is probably a sports aficionado.

A female Japanese tourist is shot to death, prompting an investigation that leads the police to the victim's husband.

The detectives believe a bride, motivated by greed, killed her groom after the wedding, until they find the murder weapon in her daughter's room.

When a deliveryman is gunned down on his route, Briscoe and Green discover that he was active on a website for arranged liaisons and that his wife had just bought a gun.

Terms of the Geneva Convention come into play when the sister of a former inmate at Abu Ghraib prison is suspected of murdering a female Guardsman in the second Gulf War.

The ex-wife of a firefighter who married a rich Sept. 11 widow is suspected of murder.

Detectives investigate the poisoning death of a grief counselor who claimed to communicate with the dead in order to comfort clients.

When the owner of a clothing company is beaten to death in his office, Briscoe and Green believe the prime suspect entered the factory just before the murder.

Prosecutors go after a driver who struck a homeless man, went home with the victim trapped in her windshield and let him die in her garage.

Detectives investigate the murder of a mob informant who sent a kingpin to jail.

A motivational speaker is pushed off a hotel balcony, then her daughter is abducted.

Detectives uncover an extensive list of suspects after a gunman storms City Hall, killing a councilman and a water inspector.

Detectives investigate the strangling of a peace activist who had a very confrontational approach.

Sebastian goes undercover; Patton practices his old gambling skills; Pride and the team embark on a perilous plan to trap Garcia.

After Pride travels to a deep-sea oil rig for a murder investigation, the team uncovers a gas leak that's on the verge of causing a catastrophic explosion; Sebastian starts his NCIS special agent training.

After thousands of classified government files are stolen, the NCIS team searches for an underground group of hackers who were co-founded by Elvis Bertrand, Pride's old contact.

NCIS agents McGee and Torres head to New Orleans to partner with Pride and his team in the search for the missing homeland security theoretical terror playbook.

Gibbs must face the reality of his actions after he assists Ziva with "the one thing" she said she would need to take care of before returning to her family.

The NCIS team investigates an F-18 crash and the 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; 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 Intensive Care Unit.

The lead suspect in a murder investigation is a woman that Gibbs' friend met on a dating site; Sloane has a secret admirer on Valentine's Day.

The team tries to piece together how a retired Navy officer obtained a rare and valuable coin.

A Navy officer is murdered the same way his parents were murdered a decade ago; the team stumbles across a storage container filled with dollhouses that display re-creations of murder scenes; the team members agree to clean out their living spaces.

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.

The team hunts for a serial killer who is targeting young, homeless men; Tiffany and Scola don't see eye to eye on how to handle the case.

After a suburban woman is kidnapped from her home, the team looks into trysts on both sides of a seemingly perfect marriage; OA feels pressure from Mona to make changes in his career path.

The team must track down a shooter targeting detectives from the same precinct and unit while facing mounting tension from the NYPD; Tiffany finds that her NYPD roots may be influencing her view of the situation.

Based on the play about six Southern women who become close friends despite their eccentricities and complicated lives.

A nursing-home resident (Jessica Tandy) regales a visitor (Kathy Bates) with tales of the close friendship between two women in the 1930s Alabama.

Based on the play about six Southern women who become close friends despite their eccentricities and complicated lives.

Painful memories come flooding back when a gruesome copycat murder leads to the reopening of a case for Wade.

Pride's longtime friend, state and military attorney Rita Devereaux, asks NCIS to investigate the disappearance of a JAG lawyer who specializes in classified cases and volunteers at a private military academy.

A highly skilled special operations Marine assaults six men in a bar, sending the NCIS team on a city-wide manhunt.

Tammy is reunited with her ex-husband, Ethan McKinley - who embezzled millions in Katrina relief funds - after he's tied to the murder of a crime boss' son.

A deadly accident at a naval base exposes a unit of Seabees to a super virus and leaves the rest of the base and the city of New Orleans at risk for an outbreak; Wade is infected with the virus and given hours to live.

LaSalle must investigate his former partner in the Vice unit after the NCIS team finds a link between an international drug ring and the New Orleans Police Department; Rita looks into a connection between the mayor and illegal activity in Clearwater.

Pride listens in on a wiretap of Mayor Hamilton; the NCIS team investigates when Navy weapons get stolen in a train heist; featuring musical performances by Sheryl Crow.

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.

Flashbacks reveal the murder case that first introduced young Gibbs to NCIS and to Ducky.

The body of a well-regarded Navy technician is found floating in a lake, which isn't far from where a popular community event takes place; Sloane's daughter makes an unexpected request.

When Kasie and Jimmy are held hostage in a diner after a jewelry store robbery goes awry, they attempt to keep the other customers safe from the thieves.

The discovery of two dead bodies in a forest leads the NCIS team into the wild world of modern-day treasure hunting; Gibbs and Fornell get deeper into their search for the opioid kingpin.

After Ducky is stabbed at a crime scene, the team uncovers disturbing secrets from the doctor's past.

The team discovers a link between a sergeant's murder and his possibly treasonous private life.

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

A murder prompts the reopening of one of Tony's old investigations, leading Gibbs and DiNozzo to reverse roles to solve the case.

When an agent is gunned down, Gibbs and Tony try to locate a woman in the desert who might have answers about his murder.

A boxer's death leads to Vance starting his own investigation; Gibbs looks into Vance's past.

A military family comes under suspicion when a boy finds a murder weapon and the team must track ownership of the gun.

When an anger-driven, unknown subject targets successful businessmen in Detroit, the BAU must investigate.

The BAU must find out what several missing women have in common to find them.

Morgan returns to the BAU to help Penelope deal with a case that has affected her emotionally.

When Reid fears his mother has been abducted, he asks the BAU to investigate while he's stuck in prison.

Morgan brings the BAU new information in the case against Mr. Scratch, a serial killer and escaped convict who has been wreaking havoc on the team.

Agent Matt Simmons joins the BAU team in a race to take down Mr. Scratch and save one of their own in the process.

The BAU is called to investigate a series of homicides in which cryptic messages are found inside the mouths of the victims.

The BAU is called when the New Orleans Police Department discovers a mass grave inside a vandalized above-ground crypt in a local cemetery.

The murder of a Navy chaplain leads Pride to uncover a possible connection between Mayor Hamilton and illegal activity taking place in the city of Clearwater; Percy continues to face repercussions of her choices on a previous case.

When Pride is spotted tracking one of Mayor Hamilton's accomplices on a crowded street, the suspect opens fire, putting innocent lives at risk before disappearing.

Unable to trust anyone in New Orleans, the NCIS team calls in FBI Assistant Director Isler to help expose and stop Mayor Hamilton's sinister scheme.

While Pride remains on probation after his rogue takedown of the corrupt Mayor Hamilton, his team is closely monitored by a strict supervisor; the team must secretly investigate after the FBI takes the lead on a case involving stolen nuclear waste.

An erratic whistleblower who calls Pride her mentor kidnaps him to help her locate a serial killer targeting young women in the Gulf of Mexico.

The team joins forces with FBI Director Isler after a Russian operative with intelligence on sleeper agents disappears; Tammy partners with former sleeper agent Eva Azarova to assist in the disappearance.