After a father and daughter get kidnapped, a former foe of the BAU returns with very specific demands for Dr. Reid.

When the BAU team travels to Denver to investigate several murders, Prentiss is forced to evaluate her relationship with Special Agent Andrew Mendoza.

Prentiss and J.J. are faced with important decisions to make about their futures as the BAU travels to Texas to investigate a series of murdered businessmen.

After Oversight is almost killed in a bombing, he recruits Mac to help him find the suspected bomber; Mac meets his Aunt Gwendolyn.

Los Angeles' power grid is taken hostage in a ransomware attack resulting in a citywide blackout; the team discovers the ransomware code used was written by Riley years ago.

When Mac is put into a dream state to help him recall key evidence found in Nikola Tesla's secret lab that could stop Codex's deadly plot, he encounters Nikola Tesla, Alexander Graham Bell, Thomas Edison and his mother.

Mac is placed inside a fake prison cell with a top Codex operative, "The Merchant," to gain his trust and get intel on their next move.

The team is forever altered when MacGyver's Aunt Gwen gets into his head and convinces Mac and Riley to join Codex; Matty and Russ take their concerns about Codex to the White House.

Mac and Riley's mission is interrupted when Russ, Desi and the Phoenix team move to prevent Codex from detonating a weapon of mass destruction; the team discovers Russ' real reason for purchasing the Phoenix Foundation.

Mac and the team infiltrate a hotel used as a hideout for criminals and find a woman with vital information on Codex.

When Taylor's former protégé is killed while preventing a bioweapon from falling into the wrong hands, Mac and the team must find the weapon, so Desi can pull off the ultimate heist before it's sold to a terrorist cell.

Booth and Brennan go undercover into the world of underground poker to investigate the death of a high-stakes gambler -- putting Booth at risk of relapsing; Hodgins creates a new lab-related product; Booth and Brennan receive exciting news.

The team investigates when the remains of a celebrity chef are discovered at a local park; Booth and Brennan must question the staff at the Royal diner; Hodgins sells his invention for millions; Brennan teaches Christine about bones.

Brennan and Booth suspect bullying as a factor in the death of a private high school student.

With 48 hours until Alex Rockwell is executed, the team races to prove Brennan's suspicion that he didn't commit the murders of which he was convicted.

When a member of the Iranian parliament kidnaps Arastoo to have him help with a murder case, the team races to identify the killer; Brennan turns to Aubrey for help when she learns the truth about Booth's gambling.

A well-known cookie jar collector's corpse is discovered in a riverbank; Booth struggles with Brennan's decision; Aubrey is interested in one of the "squinterns."

The team must navigate the two very different worlds while investigating the death of an ex-con turned yoga instructor; Booth works to regain Brennan's trust; Angela and Hodgins make a major decision.

The team investigates a killing in which the crime scene points to a possible protégé of Pelant; Angela second-guesses the decision to move to Paris; Brennan and Booth consider employment options.

Six months after starting a new life with her family, Brennan becomes interested in a case to which she has personal ties; an FBI investigation begins when Booth goes missing.

Booth's location and condition become more mysterious when it's discovered that FBI Agent Miller has been hiding vital information; Arastoo makes a significant decision.

When Brennan officially returns to work at the Jeffersonian and Booth resumes his position at the FBI, remains are found at a fish farm; Hodgins encourages Angela to exhibit her photography work; Cam faces a difficult decision.

Brennan enlists the help of a fellow forensic anthropologist; investigating the death of a real estate agent whose remains appear to have been destroyed by coyote-wolf hybrids.

While investigating a case involving a headless corpse, Brennan and Booth encounter Ichabod Crane and Abbie Mills searching for answers of their own; Brennan and Booth come up with Halloween pranks.

Two sanitation workers (Sal Vulcano and James Murray) find a U.S. senator's corpse in a street sweeper; Aubrey looks into Jessica's past.

An escape artist's corpse is found in the woods; Booth and Brennan try to decide if the tooth fairy should visit Christine; Angela works on her photography with Sebastian Kohl (Gil Darnell).

A political journalist is murdered after publishing an article regarding corruption in the NSA; Hodgins' paranoia increases as members of the team realize they are being monitored; Brennan plans a surprise for Booth; a Thanksgiving celebration.

The team investigates the deadly bar bombing and impending criminal turf war involving Sasha Broussard; Pride must come to terms with having Connor in his life; Carter and Hannah work to define their new relationship.

Pride directs the team to link Sasha to the recent attacks in New Orleans; Carter and Tammy search for a stolen highly trained military dog; Pride and Rita make an important decision about their wedding.

Pride and Rita plan their wedding; the FBI arrests Connor in connection to the bar's firebombing.

On the eve of his wedding to Rita -- and Connor leaving for the Witness Protection Program -- Pride must track down who attacked Jimmy and Connor, while he navigates Sasha's ulterior motives regarding her son.

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.

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.

McGarrett thinks a smart, seductive therapist (Vanessa Marcil) murdered one of her patients; one of Doris' former targets seeks revenge.

A botched robbery puts Max and his crush (Rumer Willis) in danger; when a stalker targets a supermodel, Danny must come to her rescue.

McGarrett and a little girl are taken hostage by an armed man (Tom Arnold) during a camping trip with Grace; Kono meets Adam's brother, who was recently released from prison.

McGarret and Catherine meet a boy whose father is missing and could be in grave danger.

When a professor is murdered, his boss, his teaching assistant and a student all come under suspicion.

When Chin is kidnapped and left in Halawa prison dressed as an inmate, he must escape before the other prisoners recognize him.

The night before an election, the governor asks the team to investigate when a prostitute is found dead in a missing congressman's bed; Danny waits for a custody decision.

A double amputee (Peter Weller) goes after the police officers responsible for his injuries -- including McGarrett.

The team investigates the murder of a Lua master; McGarrett has a private investigator tail his mother.

Danny obsesses about the big game during all-pro weekend in Hawaii; a star football player helps the team investigate the murder of a tech executive.

When a murder victim lands in Dog the Bounty Hunter's vehicle, Catherine goes undercover and investigates at a local roller derby.

The team struggles to narrow down a suspect when threats against a company that endangers sharks turn deadly; Kamekona tries to earn his helicopter license.

McGarrett tells the story of his last mission in North Korea as he and Catherine cross into the country to retrieve a friend's remains.

Steve and the team allow a talk-show host (Aisha Tyler) and her crew to follow them for a day, but a run-in with Wo Fat leads to danger.

When a young girl's body is discovered 10 years after being kidnapped, the team searches for her abductors -- who have taken their next victim; Kono asks Catherine for a favor that could impact her relationship with Adam.

McGarrett helps his mother with a covert op in hope of retrieving an incriminating microfiche; Kono runs into danger as she closes in on Adam's secret.

When the only witness to a double murder is unable to speak, Toby reads his mind to determine what happened.

Toby and Olivia learn that Oz's parents' restaurant is in trouble; Toby uses his telepathy to try to solve a missing persons case.

When a patient dies after a hit-and-run accident, Toby discovers that the man was convicted of embezzling millions of dollars.

Toby helps a woman regain her memory and draws the attention of the Integrated Investigative Bureau.

LaSalle hopes to avenge his brother's murder by tracking a drug ring in Alabama he believes is responsible; when Pride assists with the case, he crosses paths with Eddie Barrett, an elusive individual who knows more than he is sharing.

Following a natural gas explosion at a movie theater, the team discovers the gas company has been hacked, and more explosions could be triggered.

Sebastian calls the team to assist with a possible kidnapping case when a dignitary's son he was assigned to protect disappears from a local concert venue.

After Eddie Barrett provides an alibi witness, Pride and the team are more determined than ever to find a break in the case and avenge LaSalle's murder.

Pride is cut off from the team and backed into a corner after the investigation into Eddie Barrett uncovers a malicious plot.

The team is concerned when Sebastian becomes unreachable while undercover as a new recruit.

The team must track down a mysterious female assassin responsible for murders in Athens, Rome and London; Wade's son begs her to allow him to go on a police ride-along for an article he's writing on a youth outreach program.

The team investigates the murder of a JAG captain who was discovered at home by his daughter, the only heir to his large estate; Sebastian is intimidated when he is put in charge of a team on his first day of training.

When Pride is unable to sleep due to continuing nightmares about the mysterious man in the red suit; he undergoes a specialized treatment to help him figure out the man's identity; an arrogant new officer joins the team.

Tammy must protect a teenage girl after her father is shot in their home; the rest of the team searches for a motive.

When a man impersonating LaSalle attempts to free a young woman from jail, the team investigates both the impostor and the prisoner; Pride's daughter pays him a surprise visit.

Racial tensions rise in New Orleans when a white officer shoots a black Navy officer he believed was armed in the middle of a busy street party.

When a Navy sailor is found dead, the team tracks the suspicious movements of people in his life prior to his death; Hannah comes to terms with her daughter's relationship with her ex's new girlfriend.

When Sebastian is injured while unsuccessfully trying to prevent a kidnapping, NCIS races to find the missing woman and her abductors; the team gets a peek into Agent Carter's personal life.

The team investigates the death of a Naval microbiologist whose hobby as a "myth buster" resulted in his death at the hands of a legendary bayou creature; Agent Khoury conducts an investigation into previous actions of Deputy Director Van Cleef.

As New Orleans grapples with the effects of COVID-19, Pride sends Tammy and Carter to investigate a suspicious death aboard an offshore humanitarian ship; Wade is overwhelmed by the high volume in the morgue due to COVID-19.

Tammy and Carter continue to investigate a suspicious death aboard a COVID-infected humanitarian ship; Pride and the team discover what may be the key to finding the killer; Wade helps a grieving woman.

Pride and the team take on a group of dirty cops when they discover that a murder victim was also a key witness in multiple excessive force cases; Tammy faces the reality of being in a new relationship.

The team continue to investigate the murder of an officer who was about to blow the whistle on police misconduct; Pride must get creative in order to finally get rid of the dirty cops; the mayor asks Pride to join her new task force.

The team investigates a suspicious death and the missing key piece of evidence is a top secret, high-tech battery; Pride and the team realize there could be deadly consequences if it falls into the wrong hands.

The team members set aside their personal and romantic issues when hackers take over targeted U.S. military aircraft and war ships, pointing the weaponry at American cities.

The team members set aside their personal and romantic issues when hackers take over targeted U.S. military aircraft and war ships, pointing the weaponry at American cities.

When Walter is accidentally launched into space in a rocket, Team Scorpion must find a way to bring him home before his oxygen runs out.

A boy from Ralph's class goes missing after having a run-in with a deadly criminal; Toby comes closer to discovering the identity of Happy's husband.

The team must protect a ruthless dictator from an assassination.

A ring of thieves pulls off the heist of an armored car, killing two security guards and leaving the money behind; Danny must seek his ex-wife's help in the case.

The abduction of a woman and the murder of her husband on their honeymoon becomes the case of the Five-0 team; Dr. Max Bergman (Masi Oka) recognizes similarities to a string of unsolved homicides.

The man who murdered McGarrett's father resurfaces; Chin Ho's life is put in danger during a hostage situation.

McGarrett discovers new clues in his mother's murder when his sister is kidnapped.

After a high-speed chase, the team makes a gruesome discovery; Chin Ho and his former fiancée awkwardly reunite.

The head of the Tsunami Warning Center disappears just as the island is being evacuated for a terrible storm.

The team heads into the jungle to try to find a missing witness in a high-profile murder case before the assassins that are after her.

An afternoon pleasure cruise turns into a nightmare when pirates attack and take hostages.

The team must stop a vengeful bomber; Danny's fun-loving brother (Dane Cook) visits unexpectedly.

A science-fiction fan dressed as a superhero is murdered; McGarrett receives a visit from a CIA agent interested in finding Yakuza.

While on a hike, Danny and McGarrett find a murder victim; Chin Ho and Kono go home to visit their ailing aunt.

After a famous photographer is murdered while doing a magazine shoot, Danny is happy to learn that he will be interviewing the swimsuit models.

After receiving valuable information from Agent Jenna Kaye, the team closes in on Wo Fat; Danny is exposed to a deadly neurological agent.

The Five-0 is targeted by Wo Fat after getting too close to the truth about the criminal mastermind and his associates.

While McGarrett awaits trial for the murder of the governor, he receives an unexpected visit; Kono is suspended.

Lori Weston, an officer with excellent profiling skills, joins the Five-0 to ensure McGarrett and the team follow new rules set in place by Gov. Denning; a teenage paddleboard champion is abducted.

Joe White, McGarrett's mentor, asks the team to investigate the death of a Navy SEAL, which was previously ruled a suicide; Chin Ho is concerned when Kono starts fraternizing with a group of dirty ex-cops.

The team investigates the murder of a deep-sea diver famous for the valuable treasure he finds.

The team's investigation into a volleyball coach's murder reveals more bad news about Kono; Chin Ho reconnects with his ex-fiancée.

When Russ is kidnapped, Mac and the team must break out a previously murderous psychopath, now pacifist, from prison to help find him; while on the run, Mac and Desi are forced to confront their relationship issues.

Mac's meeting with Desi's parents goes sideways when her brother finds himself in trouble and needing their help; Russ and Matty must ask an old nemesis for assistance when their new recruitment candidate is kidnapped.

Using a cryptic postcard as their only clue, Mac and the team must solve a fallen friend's final case and bring him justice.

During COVID-19's first stay-at-home order, Mac, Bozer and Riley must stop a crime in progress at their neighbor's house; Russ' romantic fling takes on a longer and more complicated turn when they quarantine together.

A secret experimental cancer treatment Mac's developing with a friend is discovered when culprits ransack their lab, kidnap Mac's partner and plan to use the research to create a powerful new nerve agent.

Mac and team rush to help when Matty's former mentor, Ian Cain, and his embassy staff come down with a deadly, mysterious illness; Taylor and Bozer work with Jerry Ortega to infiltrate a Codex cell.

When Mac and the team are unable to prevent sensitive intel from falling into Codex's hands, Mac must scale a vertical cliff using only gear he can cobble together himself to prevent the info's transmission.

While on a mission to hunt down a Codex lead, Mac and the team discover Murdoc hacked their comms and has recorded them for months.

A Senate committee questions the members of the BAU team; a familiar face may help keep the team united.

The BAU team investigates a series of murders in Oklahoma; Reid gives JJ and Prentiss the cold shoulder.

After a mass murder at an Internet security company, evidence indicates that the person responsible is not a typical serial killer; Prentiss is required to complete recertification training.

A killer targets survivors of a high-school massacre, who have gathered for a reunion; Hotch fears that his son is being bullied.

A series of children are abducted from troubled women in St. Louis; Rossi's first wife shares shocking news.

The team investigates when multiple bodies are found in a national forest; Rossi faces an agonizing decision.

The BAU investigates when bodies are exposed by tornadoes in Kansas; pressure at work affects J.J. at home.

A woman in Garcia's survivors' support group goes missing on the seventh anniversary of her daughter's disappearance.

The team investigates when an apparent mass suicide takes place at a military academy; Morgan and Hotch clash.

The investigation of a series of bludgeoning attacks in Philadelphia leads the team to the city's boxing scene; Hotch connects with a fellow runner while training for the triathlon.

A series of murders makes the team wonder if a notorious killer has returned; Reid wonders if he could be doing more with his abilities.

A serial rapist resurfaces in Houston and assaults his past victims; Prentiss attempts to overcome last year's trauma.

The team investigates ritualistic casino-related murders in New Jersey; a fight with her boyfriend makes Garcia think she and Morgan have gotten too close.

The team discovers multiple bodies hidden in lifeguard towers along the coast of Southern California.

The team uncovers a sinister motive for a string of brutal home invasions.

The BAU goes to Atlanta to investigate a series of murders, which they believe are being committed by more than one unsub.

McCluskey recruits Toby on a case involving smuggled weapons.

Toby investigates an assassination threat against a Conservative leadership frontrunner.

Toby and Michelle investigate a suspicious homicide.

Toby is brought in to investigate some corrupt cops, but finds himself in over his head when one of them ends up dead from a suspected drug overdose.

Bull helps a doctor who illegally purchased a marijuana-derived oil to treat her patients; the case gets complicated when she is arrested for having intent to distribute.

Bull helps a man who changed his identity after unwittingly assisting in a robbery; Bull must convince the jury that the man has redeemed himself by living an upstanding life for years.

A friend from Bull's past enlists his services to help convince a jury that a domestic abuse survivor who shot her husband in his sleep is not guilty of murder because she feared for her life and the life of her unborn child.

Bull's team takes on a seemingly unwinnable case; a mute man faces the death penalty if he's found guilty of murder and arson; Bull is stunned to learn that his ex-wife is remarrying.

Bull's team is rocked when a client is found guilty of murder; the team finds new evidence but must find a way to present it in court without being found in contempt; Marissa faces hard truths about her relationship with Bull.

Bull returns to work with a new rich client for the firm to represent: an insurance company being sued by a dying mother for denying coverage of her liver transplant.

Bull finds himself serving jury duty while simultaneously mounting a defense for a woman on trial for killing her daughter's murderer.

When the team consults for the NYPD on the defense of a police officer accused of excessive force in the shooting of an unarmed man, the social politics surrounding the case create tension within their own ranks.

The Bancroft family calls on Brennan and Booth to investigate the stabbing death of Terence Bancroft; Agent Sullivan invites Brennan to his basketball game.

During a murder investigation at the marina, Booth notices similarities between the case and a murder in Brennan's latest book.

Booth interrupts Brennan's vacation with her boyfriend to get help with the case of a woman whose boneless body was found in a river.

When a water main bursts at a cemetery, Brennan must identify and help reinter the remains that litter the grounds.

Booth suspects an organized-crime family when a partial skeleton is found encased in concrete, and he tries to lure the suspected killer out of hiding; Brennan gets a surprise visit from her father (Ryan O'Neal) while visiting her mother's grave.

When Brennan and Booth investigate a body that was found in a crater, evidence suggests that it had been in outer space.

Potentially radioactive remains emit a green glow at the crime scene.

Brennan and Booth investigate a small skeleton assumed to be that of a 10-year-old girl; Brennan's father (Ryan O'Neal) reappears in her life to deliver information from her past.

A skull smashes the windshield of a car driven by a group of teenagers on the freeway; a trail of suspects leads Brennan and Booth to a strange cannibalistic society; Cam suggests that Angela hire a private investigator to find her ex-husband.

Brennan and Booth investigate when a soccer mom is blown up in her minivan; the investigation uncovers that the woman was a member of the National Liberation Army.

The team investigates a footless corpse that was found in the woods; Brennan and Booth's questioning leads to several suspects, including the victim's wife; Angela agrees to undergo hypnosis to remember her former husband's name.

When the founder of an organic supermarket chain is found dead, Brennan and Booth suspect foul play by a rival farmer; the two agents visit a new psychiatrist, who warns that the FBI may separate them.

An imprisoned criminal mastermind holds the key to the whereabouts of a kidnapped judge.

When Michelle and Dev investigate the suspicious death of a CSIS agent, the IIB uncovers a breach of classified intelligence.

A routine trip to the hospital leads a wealthy businessman to lose his baby daughter after his SUV is hijacked.

A break in a six-month cyber crime investigation leads Michelle and Dev to pursue a reckless hacker.

Rossi develops some new theories about Everett Lynch, aka The Chameleon; the team sets out on an epic hunt to capture Lynch.

While hallucinating after he gets a brain injury, Dr. Reid is visited by ghosts from his past; the BAU makes a shocking discovery about Lynch that affects Rossi personally; the team comes together to celebrate Rossi's retirement.

The team closes in on a serial killer (Tim Curry) holding Detective Spicer's daughter hostage.

JJ tries to reunite parents with their missing daughter; the team braces for the loss of one of its own.

When several women are murdered, Rossi revisits a 25-year-old case that causes him to suspect a killer is at work again.

The team searches for a serial killer who is preying on married couples; Hotchner looks to a team member to fill JJ's vacant role.

The team pursues a serial killer targeting families in the Midwest; Morgan receives a visit from Ellie after she runs away from her foster family.

The team searches for a killer who has struck the past three years during Detroit's raucous pre-Halloween celebrations.

When bodies turn up in Indiana cornfields, the team must catch a pack of serial killers targeting exotic dancers.

The team tries to stop a killer from striking again after the body of a kidnapped woman is found in an alley.

When an 8-year-old is found dead on the Appalachian Trail, the team searches the forests for a man targeting children.

The team pursues a killer who targets women; Hotchner turns to an FBI cadet for help.

After helping a man get parole, Morgan regrets his decision when the man murders someone shortly after being released.

A series of bizarre, ritualistic murders brings the team to Miami; Reid experiences hallucinations and blinding headaches.

The team pursues two young lovers on a killing spree; Prentiss receives frightening news.

The team investigates unusual murders in Los Angeles, and more information about Prentiss' past arises.

The BAU heads to upstate New York to investigate mysterious disappearances; Prentiss receives troubling news about a former colleague.

Reid's ability to connect with an autistic child may prove helpful in finding the boy's missing parents; two former colleagues help Prentiss search for an old adversary.

After a series of murders, Prentiss becomes suspicious of a former nemesis (Sebastian Roché) and fears for the safety of her team.

Prentiss prepares to confront her nemesis at last; the team asks J.J. to help find Prentiss and capture Doyle.

Mac and Riley head overseas together to prevent a governmental collapse and inadvertently inhale new, deadly microscopic technology.

Mac, Desi and Russ go undercover during a royal Indian wedding to protect a princess whose policies could put her life in danger; Bozer suspects Riley is up to her old hacking ways.

Mac and the team delve into the world of Italian car culture to track down a crime boss; Mac must lean on Desi when he discovers that he's losing the ability to control his hands; Mac and Desi move in together.

Mac and Desi travel with Bozer to his childhood home when his aunt dies in a tragic accident; they soon discover she may have been murdered for trying to expose the city's contaminated water supply.

Mac and Riley go missing and wake up 24 hours later in a cornfield with no memory of how they got there; they must unravel the mystery and find out how to get rid of the nanotrackers in their bodies, no matter the cost.

Special agents for the Department of External Services, Angus "Mac" MacGyver and Jack Dalton, work to recover a missing bioweapon.

MacGyver and the team attempt to rescue Jack's former CIA partner who went missing in Venezuela after finding evidence to take down an international arms dealer.

In Malaysia, MacGyver and the team extract a terrorist group's money man who has intel on an impending attack, but when the man is shot, MacGyver must keep him alive in order to learn the terrorists' plans.

Booth and Brennan go undercover at an Old West-style shooting competition; Angela and Hodgins talk about the future; Cam and Sebastian grow closer.

The team investigates a police officer's murder; the team decides what is important to their futures.

Hodgins navigates life in a wheelchair; when a public defender is murdered, several of her previous clients had motives to kill her.

The team investigates the death of a men's rights organization founder who may have been the victim of domestic abuse; Brennan loses her temper during an interrogation; Angela and the team struggle with Hodgins' bitterness.

The team hunts for a serial killer who appears to have sinister interactions with the victims' bodies before dumping them; Booth and Aubrey consult a behavioral analyst to help find clues to the killer's identity.

A suspect in the murder of a convicted felon who had been released to a halfway house has ties to Booth; Brennan testifies at an FBI hearing about her assault of an unarmed suspect from a previous case.

The team investigates the death of a private investigator found frozen after being dumped in the Potomac; Aubrey finds shocking information connected to his father's whereabouts.

The team investigates the death of an a cappella singer whose body was found in a lab rat; Hodgins applies for an experimental nerve regeneration study; Booth tries to plan a summer trip with Parker; a new intern joins the lab.

An intoxicated college student discovers the dead body of a Secret Service agent just before a scheduled presidential visit to the area; former intern Dr. Colin Fisher leads the investigation while Brennan battles a case of the flu.

A documentary crew producing a television segment on the Jeffersonian's Medico-Legal lab follows the team as it investigates a corpse found in a landfill.

Booth's hockey knowledge comes in handy when the team investigates the death of a player whose headless corpse was left in the river; Hodgins and Oliver use drones to see who can retrieve the victim's head.

The investigation into the murder of a billionaire explorer who went missing 10 years earlier reveals Dr. Clark Edison as a suspect; Cam's sister visits to help with wedding plans.

A diamond is found in the jaw of a corpse discovered at a glass recycling plant; Booth learns that he has a medical issue; Hodgins thinks a ghost is following him.

The team attempts to find The Puppeteer, a serial killer from the past, who lives with his victim's bodies before disposing of them; Brennan struggles with guilt over not stopping the killer earlier.

Booth and the lab team desperately search for Brennan after she's kidnapped by her former assistant, Zack Addy.

The team investigates whether an artificial intelligence bot was programmed to kill its creator; Bones plans a surprise for her birthday.

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.

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.

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.

Kono is blamed for a murder she did not commit; McGarrett's visit to Wo Fat leads to a shocking discovery.

Following McGarrett and Wo Fat's escape, gunmen hit Five-0 headquarters; McGarrett must turn on his own in order to find Catherine.

As the Five-0 team members investigate a murder, they are led to a Texas ranger (Tim Daly) who came to Hawaii to look for his daughter; Adam and Kono fight to stay alive.

When a missing artifact seems to be the key to solving a double murder, a conspiracy theorist (Jorge Garcia) helps the team.

When a wedding crasher is murdered, a runaway bride is the prime suspect; Danny makes a decision about his relationship with Gabby.

A seemingly harmless surveillance job turns deadly; in hope of saving Kono, Adam considers making a sacrifice.

When a zombielike man is shot, the team members are led to a madman who is performing experiments on humans.

When Mary gets sick, McGarrett and the team must watch her newly adopted baby while they investigate the murder of an undercover ATF agent.

The governor asks McGarrett and Grover to serve a warrant to a young computer hacker (Nick Jonas) in order to protect national security.

A Secret Service agent is murdered while the president is traveling to Oahu; as Thanksgiving approaches, McGarrett's Aunt Deb (Carol Burnett) visits and shares a stunning secret.

An attempted murder leads the team to investigate a deadly crime committed in Hawaii during World War II.

An investigation involving a potential serial killer puts Chin's life in danger; Grace and Danny find a mysterious puzzle box.

One of Grover's friends disappears after apparently committing a murder.

Chin is questioned about his father's murder and how his relationship with Malia and her family could have adversely affected the investigation.

An escaped convict who wants Five-0 to prove his innocence abducts Danny and McGarrett; Grace punches a person at school.

The team investigates the death of a real estate agent whose body was found in the walls of one of his listings; Danny's mother visits with unexpected news.

Toby and Oz are taken hostage by two men posing as security guards when they are dispatched to a routine call in the financial district.

A celebrated restaurant chef is a star witness in the trial of a mob boss charged with shooting his business partner.

A sex tape featuring the Minister of Foreign Affairs goes viral.

Toby connects with a gifted young woman whose mental powers appear to rival or even surpass his own.

When a torpedo hits a fishing trawler at sea, the entire Gulf Coast is in jeopardy as Pride and NCIS race to find the submarine before it can strike again.

A Navy therapist who is working to get justice for victims of sexual assault is murdered; Carter's mother confronts him when he refuses to talk to the FBI for a background check on her behalf.

As Pride and the team continue the investigation of an officer's assault and the murder of her therapist, NCIS zeroes in on a suspect who's been working the system for years; Carter and his mother talk about how they'll move forward after a mistake.

Pride and the team are on the hunt for a kidnapped 14-year-old and discover that her father, who will soon have custody of her, is a radical survivalist living off the grid.

When a petty officer is shot down by a sniper, Pride and NCIS hunt down the killer, only to find that he may not be acting alone; Rita tells Pride that she has been offered a compelling job.

Sebastian's life is in danger when a criminal he put behind bars escapes police custody; Carter is tasked with keeping Sebastian in protective custody; Carter and Hannah's flirtation is fun gossip fodder for Tammy and Sebastian.

After a Molotov cocktail is hurled into Pride's bar, evidence leads him to his old nemesis, Sasha Broussard; Tammy uses her profiling skills on Hannah and Carter with shocking accuracy.

The team investigates the deadly bar bombing and impending criminal turf war involving Sasha Broussard; Pride must come to terms with having Connor in his life; Carter and Hannah work to define their new relationship.

Pride directs the team to link Sasha to the recent attacks in New Orleans; Carter and Tammy search for a stolen highly trained military dog; Pride and Rita make an important decision about their wedding.

Pride and Rita plan their wedding; the FBI arrests Connor in connection to the bar's firebombing.

On the eve of his wedding to Rita -- and Connor leaving for the Witness Protection Program -- Pride must track down who attacked Jimmy and Connor, while he navigates Sasha's ulterior motives regarding her son.

The team investigates the death of a petty officer whom Pride had mentored; Brody searches for a place to call home.

When a Navy lieutenant on liberty dies of bubonic plague, NCIS Special Agent Tony DiNozzo helps the New Orleans team as they try to control a potential outbreak and find the source of the infectious disease.

An armored transport bus crashes, resulting in the escape of four prisoners -- including a black market broker topping the list of national security threats; Pride needs Gibbs' help with a case file full of redactions.