The Five-0 helps a private investigator in the case of a kidnapped woman whose husband may have something to hide; Rachel tells Danny that she is getting a divorce from Stan.

McGarrett and the Five-0 are captured while tracking a dangerous nemesis to the island of Lanai; Grover takes his son to Chicago, where he testifies against a dirty cop.

McGarrett works the murder case of one of the last survivors of the USS Arizona; Adam uncovers bone fragments at his new construction job.

Team Scorpion tries to help a father and his daughter when their plane crashes nearby; Paige helps Walter navigate his feelings about Cabe's possible future in prison.

The team anxiously awaits the verdict of Cabe's trial which could send him to prison; they use their nervous energy to try saving a dog stuck in a cistern.

On Christmas Eve, Walter becomes unconscious after falling down the stairs and enters a dream world where Team Scorpion never existed.

The team must work with Toby's nemesis and his wife -- Toby's ex-fiancée -- when they are locked inside an artificially intelligent doomsday bunker that aims to kill them; Walter is distracted by a dream in which he married Florence instead of Paige.

Pride's father, Cassius Pride, is wrapped up in an NCIS case involving a notorious unsolved casino heist; Pride meets a family member he never knew existed.

After Pride's assistant escapes from a kidnapper, the team uncovers evidence of a suspect who is harvesting organs from multiple victims; Pride turns to a friend for guidance as he struggles with the ramifications of his recent brush with death.

Following a deadly car explosion in the French Quarter, the team interrogates a professor and former member of a student protest organization; Tammy discovers a secret about Hannah's personal life.

The team places Mateo Diaz, a high school gang member turned informant, in protective custody while they investigate the murder of his junior reserve officers' training corps instructor; Pride needs his brother's help to gain Mateo's trust.

The team investigates the murder of a Navy contractor who secretly lived two lives for decades.

Pride is given a series of tasks to complete by unknown assailants who are holding Wade and his father hostage.

Pride and the team hope to take down a secret and lethal group of former intelligence agents and avenge the death of someone close to them.

While undercover, Gregorio joins a social club for military wives after one of the members is contacted by an ex-boyfriend who is on the FBI's most wanted list.

NCIS investigates the disappearance of a Navy entomologist after a deadly shooting at a research lab; the team finds that a rare and deadly virus was stolen.

Pride and the team reunite with conspiracy journalist Oliver Crane after the source for his latest story is murdered; Hannah's former partner, Liam Somers, surprises her and shares a shocking revelation about an old case.

The team investigates multiple murders tied to a construction company that creates an experimental chemical that strengthens sea walls; evidence from Hannah's previous mission in Oman is used against her.

After an elusive terrorist with a personal vendetta against Hannah resurfaces, she and her family are placed in protective custody while the team searches for the suspect.

After a reshuffling of assignments, Pride returns to the New Orleans office during the investigation of a missing petty officer.

The NCIS team investigates the murder of Patton's friend, a former Navy SEAL gunned down in a drive-by shooting while Patton watched.

A Navy lieutenant from a well-connected and affluent family has a fatal fall down a flight of stairs at a charity gala; the team investigates whether his death was an accident or foul play.

When Elvis Bertrand's "daughter" is linked to a murder case, he asks Pride to prove her innocence.

Tammy is convinced that a con man committed the hit-and-run murder of a Navy doctor, even though the evidence shows otherwise; unbeknownst to Hannah, her husband approaches Pride with new intel on an underground spy network.

The NCIS team investigates a deadly bombing at a military museum event with over 1,000 people in attendance.

Pride and LaSalle travel to war-torn South Ossetia to locate an FBI agent who was kidnapped during a failed mission to apprehend the leader of Apollyon, the underground spy network responsible for murdering Pride's father.

After tracking Apollyon, a deadly underground spy network, to war-torn South Ossetia, Pride is separated from the team and faces grave danger; in order to save Pride, the NCIS team must locate a mole who continues to feed information to Apollyon.

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.

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.

Routine disposal of drug evidence goes horribly wrong, leaving two police officers dead and the CSI team under investigation.

Horatio wants to question a murder victim's boyfriend, but the FBI won't divulge his location; Calleigh's father pays a visit.

An ex-con asks Horatio to help him find his missing son; Speedle investigates a man's death by asphyxia.

Marks on a female corpse on a beach lead Horatio to think the perpetrator is a serial killer who bites victims; Calleigh and Delko investigate a murder at a motel pool.

The team investigates when a fire engulfs a popular nightclub, killing 16 people and injuring 58 others.

The daughter of a macadamia nut tycoon is killed with a stiletto heel during Chin's high school reunion.

Danny and McGarrett are trapped inside an abandoned building rigged to explode.

A murder investigation leads the team to uncover a possible terrorist cell planning an attack on U.S. soil.

Catherine and McGarrett go to Afghanistan to help a young boy, whose family saved Catherine years earlier.

Grover is forced to steal $100 million when a nemesis kidnaps his daughter; Wo Fat goes back to Oahu after escaping from prison.

O'ahu goes on lockdown as the team looks for a terrorist who is using weaponized drones on civilians; McGarrett and Danno attend a review with a psychologist.

While a Navy SEAL is on a secret mission, his young daughter is kidnapped; Danny must find $18.5 million in order to save his brother.

Three female thieves unwittingly make themselves serious targets when they take something during a tour bus robbery; Danny searches for his brother's money.

When a man from Detroit is killed on the streets of Oahu, the team is shocked to discover the killer's motives; Chin risks everything to help Danny.

McGarrett meets a woman who helps him reopen the last cold case his father investigated before dying.

On Halloween, the team hunts a serial killer who mimics murders from a cult slasher film; Jerry is abducted by counterfeiters.

McGarrett experiences what would have happened to the team had they taken a different path when he is kidnapped by Wo Fat.

Sons become the prime suspects in the murder of their parents; Aunt Deb shocks McGarrett when she returns to the island with her new fiancé.

When a cowboy is poisoned, Max must work with a rival medical examiner; McGarrett wants Danny to steal a Christmas tree.

An old-school private detective helps the Five-0 solve the murder of a young woman who secretly worked as an escort.

The LAPD interrupts the team's Christmas celebration to arrest Mac for terrorism when they find a body in a building destroyed by a bomb Mac built.

When Mac's nemesis rigs Mac's house with explosives and traps him and Jack inside, Mac uses a karaoke mic and an audio transformer to let the team know that the bomb is a distraction for a bigger one.

Mac participates in a challenge to create robotic combat machines; Mac must help a competitor when her vehicle is hacked and heads for the Pentagon; Jack attends his high school reunion.

The team heads to New Orleans to track down a con artist posing as the wife of one of Jack's old CIA aliases; enemies of his old alias resurface looking for revenge.

One of Murdoc's assassins agrees to hand over Murdoc to MacGyver in exchange for $10 million; the team finds itself protecting Murdoc from a former mentor who wants him dead; Jack realizes he may still have feelings for Riley's mother.

The team members pose as honeymoon couples at a resort in an attempt to befriend the son of a Serbian war criminal; Bozer wonders if Matty knows about his relationship with Leanna; Jack recruits Elwood to help him break into Matty's home.

Mac, Jack and Riley set out to find a mobster-turned-informant after he's kidnapped and taken to Chernobyl by an international crime boss; Bozer struggles to keep a secret from Matty.

Mac and the team reunite with the Coltons, a family of bounty hunters, as they all search for a thief of classified intelligence.

Morgan's visit with a survivor of unusual stabbings in upstate New York leads to more questions about the case.

The discovery of two murder victims in West Virginia uncovers a long-simmering feud between two families.

The team searches for a commonality when a series of target abductions take place; Savannah is frustrated with Morgan's traveling.

When people are killed by arsenic poisoning and handwritten death threats are found, the team pursues a suspect fascinated by Greek mythology; Hotch is worried about participating in a Career Day at Jack's school.

When prostitutes are murdered in Texas, their deaths seem to have religious overtones; members of the team are put at risk throughout the course of the investigation.

The investigation in Texas reveals a deep web of corruption; Garcia must save a friend.

The team investigates a series of murders with unidentifiable victims in Bakersfield, Calif.; agent Kate Callahan joins the team.

The team members search for a vengeful suspect who was once abused; Garcia travels to Texas to confront the person she shot.

The BAU team goes to Colorado to investigate when a passenger jet crashes; the incident reminds Kate of a family tragedy.

A body is found covered in scratches, leading the BAU to believe that the person responsible has a chronic skin disorder.

A child reappears one year after he went missing -- but the team must work quickly when a trick-or-treater disappears under similar circumstances.

The team has a difficult time finding a common denominator among several male victims in Montana; J.J. struggles with feelings about her sister's death.

The team believes a suspect is taking on the persona of an Internet urban legend when people with substantial social media followings are found dead; Savannah and Morgan try to find time for each other.

As the team investigates the disappearance of a prominent Boston attorney, secrets of the man's past are revealed.

The BAU tracks a conflicted killer in Virginia who feels remorseful after committing crimes; Rossi receives a visitor.

When the BAU heads to Salt Lake City to look into a triple homicide, their investigation may lead to a fugitive.

The team investigates the death of a professor, who was found hanging from a tree after being tortured.

The team investigates the murder of a man found stabbed in a peep-show booth, finding non-human hairs on the victim's body.

The team delves into "tweaker" culture after a brutal murder is followed by a near-fatal explosion at the home of a methamphetamine addict.

Horatio witnesses a dramatic prison break and later discovers one of the escapees is a child molester/murderer he put away six months earlier.

A playboy who enjoys diplomatic immunity becomes Horatio's prime suspect after a model is killed in a hit-and-run accident during Fashion Week.

Horatio delves into the world of modern treasure-hunting after a victim is found skewered to his yacht with a harpoon.

The team finds a rape victim clinging to life after being beaten, and Horatio suspects an imprisoned rapist is somehow responsible for the attack.

The team responds after a gifted 14-year-old tennis player is kidnapped from her bedroom in the middle of the night.

A masked gunman opens fire at a bar, leaving its two owners dead and a third man wounded. Jay Mohr and John Heard guest star.

The CSI team investigates when three people are found dead after a hurricane strikes Miami; Calleigh finds a woman shot to death in a house that was recently looted.

A gas man is engulfed in invisible flames and dies during a qualifying race at the Grand Prix Americas.

Horatio must find his brother's killer and protect a niece he never knew existed; the team explores voyeuristic Internet sites in connection with a stockbroker's murder.

A man's corpse disguised as a scarecrow is found in a cornfield; Booth and Brennan question the victim's three wives, who are also sisters; Cam doubts her relationship.

The team analyzes a BMX rider's remains, discovered on the roof of a warehouse; Sweets asks Booth for advice; Booth makes a decision about Hannah.

When the liquefied remains of a wedding planner are found in a tanning bed on Valentine's Day, Cam pressures the team to work fast so she can spend the holiday with her boyfriend; Clark helps Hodgins realize the best gifts come from the heart.

Sniper Jacob Broadsky takes out a victim who escaped from the justice system; Booth uses his military training to try to stop Broadsky before he strikes again; Angela's father visits the Jeffersonian.

During a blizzard that causes a citywide blackout, the team must solve a murder case that could be connected to a possible viral outbreak; Sweets starts a touchy conversation about Brennan and Booth's relationship.

Brennan teams up with a forensic podiatrist to match seven pairs of severed feet with bodies that wash ashore after a flood; Cam makes college plans for her daughter behind her back.

A TV-show host's remains are found in the wilderness; Vincent Nigel-Murray makes surprising confessions while making amends with each member of the team.

The remains of a maritime museum security guard are found in the Florida Everglades after an attempt to steal a 17th century nautical chart to find treasures; Booth asks a former Iraqi soldier for help with the case.

The remains of a successful ad man are found in a new community center playground; the members of the team try to communicate more honestly.

An unidentified 15-year-old girl, who is hearing impaired and not able to communicate, is found covered in blood and wielding a knife; Angela hides the details of her pregnancy.

Booth becomes more determined to catch Jacob Broadsky after he takes out another victim.

Booth and Brennan go undercover to find out what happened to a man whose remains were found lodged in the pinsetter at a bowling lane.

Becker's involvement in a criminal conspiracy sparks an investigation by Toby, Michelle and Dev.

Toby rescues a woman who has been in a car accident and uses his abilities to solve a kidnapping.

Toby tracks down an arsonist after saving a childhood friend from a burning building.

Toby has visions of a missing girl after he bumps into a homeless man.

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 bludgeonings 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.

Multiple married couples fostering young children are murdered in Seattle; Garcia worries that Kevin is about to propose.

When a young boy is found in the Arizona desert and another goes missing, the team searches for the kidnapper; Morgan draws on his difficult past to connect with the found child.

The team investigates a series of gothic, ritualistic murders in Oregon.

When Morgan's sister sees a woman who looks like their presumed-dead cousin, the BAU reopens the case of her disappearance.

After an infamous serial murderer is executed, women in the same Oklahoma town are attacked by a copycat; Prentiss gets nervous about making a major real estate purchase.

The team leads a class of college students through the nearly 20-year chase for a serial killer.

When the BAU is called to negotiate a situation at a federal bank, one of their own becomes a hostage; Prentiss says goodbye.

When the BAU is called to negotiate a situation at a federal bank, one of their own becomes a hostage; Prentiss says goodbye.

As Mac and the team investigate the suspicious death of Dawn's CIA supervisor, the evidence leads to a dirty CIA agent and a massive counterfeiting ring.

Mac and Jack attempt to rescue a billionaire's son after he is kidnapped by a former Navy SEAL.

While helping a friend in Puerto Rico, MacGyver is taken hostage by robbers who are attempting to steal $2 million from the bank his friend manages.

Mac and Riley are called in to examine a mysterious object that crash-landed in the Nevada desert; Riley uncovers new information about Mac's father but questions whether to deliver it to him after he says he needs to move on.

MacGyver gets a shocking surprise when he tries to tell Matty he's quitting the Phoenix Foundation.

Three months after quitting the Phoenix Foundation and moving to Nigeria, Mac puts aside his differences with his father and returns when he hears Jack is the target of a murderous dictator he double-crossed.

Jack receives an emergency distress signal from one of his old Delta buddies who has been accused of terrorism in a foreign country; MacGyver and Jack quickly recruit the rest of Jack's old Delta team and stage an unsanctioned rescue operation.

MacGyver and the team go undercover on a college campus to find an operative who is recruiting students to carry out deadly attacks; Jack joins bounty hunter Billy Colton in the hunt for a bail jumper.

Booth and Brennan investigate when pulverized human remains are found in a garbage bag; Angela's father (Billy F. Gibbons) seeks revenge on Hodgins.

A flattened body is discovered in a bale of compressed cardboard; Booth and Brennan get suspicious when they see Sweets' girlfriend with another man.

Booth and Brennan look for a killer and a motive when it is discovered that a human skeleton is being used as a prop for a death metal band.

Brennan is suspicious when a Jeffersonian co-worker dies of heart failure; Cam tries to get her newly adopted teenager to stop smoking.

A friend of Booth's, Ken Nakamura, asks for help when his sister goes missing in Washington.

The body of a fraternity brother is discovered inside a rival school's mascot uniform; Booth tries to help his brother find a new job.

Brennan asks Booth to be the father of her child; Stewie Griffin (Seth MacFarlane) offers the couple advice.

When a body is discovered at a popular nightclub, everyone is a suspect.

Angela's psychic, Avalon Harmonia (Cyndi Lauper), alerts Brennan and Booth to the presence of a mass grave beneath a fountain.

Booth and Brennan investigate when a man is murdered for the undisclosed contents of his briefcase; the team looks for alternate funding for Wendell when he loses his scholarship.

Human remains are found next to a railroad; Cam deals with the stress of being a new parent; Booth tries to keep Cam's stepdaughter in line.

When human remains are found at a neighborhood block party, scandals and suburban politics give many people a motive; Booth's son tries to find a girlfriend for his father.

Brennan and Booth investigate what appear to be charred human remains on an electrical fence; Brennan goes on a date with Booth's supervisor; Sweets' girlfriend returns to the Jeffersonian.

The Jeffersonian team investigates when the mutilated remains of a chicken farmer are found near a river; the case prompts Angela to launch an animal-rights campaign.

Booth must be recertified for FBI marksmanship, but he is not the accurate shot he was before having brain surgery; Brennan and Booth investigate the death of a little person who was a wrestler.

Booth's grandfather comes to live with him and tags along as Brennan and Booth investigate human remains that were found by a real estate agent who was showing a property to prospective buyers.

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.

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.

Danny protects a coma patient who was the key witness from his last case at the Hawaiian Police Department.

McGarrett gets a tip that someone is plotting a terror attack on Oahu; Chin and Abby face a difficult decision.

McGarrett risks his life when Five-0 attempts to rescue the young girls trapped in the sex trafficking ring they have been tracking; Kono makes a life-changing decision.

McGarrett and Danny recruit Tani Rey to join the task force when a hacker releases a dangerous arsonist from prison.

McGarrett and the team work with an injured police dog that is the only witness to an ambushed drug bust; a former SEAL looks to join the task force.

The team enlists an old friend when a crime boss is murdered, triggering revenge killings across the island; McGarrett and Danny work out details concerning their new restaurant venture.

When the HPD system is hacked and one of the Five-0's informants ends up dead, McGarrett enlists the help of hacker Aaron Wright, whom he just imprisoned.

At Halloween, the team investigates a string of murders that mirrors stories from well-known Hawaiian folklore; Grover visits a man who is hours away from execution and may hold the key to a case that has plagued Grover for years.

The murder of two tourists leads the team to a man who has multiple personality disorder; Danny and the others hire a stress management consultant to help McGarrett.

A bank heist in progress forces Steve to make a potentially heartbreaking mistake; Adam faces an empty home without Kono.

McGarrett poses as a pilot to investigate a plane crash that led to the death of a pilot in an air race.

McGarrett, Danny, Tani, and Junior are exposed to a deadly biological weapon; the rest of the team has eight hours to find an antidote.

Danny is shot while quarantined in the hospital; unconscious, he clings to life and imagines a future for everyone.

Danny tells Charlie a bedtime story about a case involving bad Santas and a holiday miracle.

When an FBI agent who was cracking down on organized crime is killed, McGarrett rounds up every gang-related criminal on the island to find the culprit responsible for the murder.

Grover must prevent a man who is accused of killing his wife from committing suicide.

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.

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.

Pride must cut his vacation short when Hannah is suspended for breaking protocol during a joint investigation with the FBI.

A Navy pilot says she saw an unidentified object prior to a private plane crash; Pride suffers from insomnia and nightmares as a result of being kidnapped and drugged last year.

Pride travels to New York City after new DNA evidence is linked to a 20-year-old cold case from his past.

The team uncovers a sinister plot by a private detention center contracted by the government to house undocumented immigrants; Lasalle and Sebastian travel to Alabama to search for Lasalle's missing brother.

Navy Lt. Max Landry asks the New Orleans field office for help when he suspects his girlfriend is a spy; LaSalle faces another devastating dead end as he searches for his brother's last known whereabouts.

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.

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.

When a crisis at LAX prevents dozens of airplanes from landing, the government brings in a group of misfit geniuses to sort things out.

The team is called upon by the governor when a virus leaves his daughter with only 24 hours to live; Walter receives a letter about his sister.

After failing a military training mission, the team members are determined to prove themselves when an Internet infrastructure is threatened by a bomber.

A woman found eaten by a shark turns out to have been bait for a private investigator hired by wives to catch their unfaithful husbands.

Horatio investigates the murder of a thrill seeker who was abducted during the course of an extreme kind of role-playing game.

Horatio investigates the apparent suicide of an anesthesiologist and finds a link to a patient who died during routine plastic surgery.

A mentally impaired man is the only witness to the murder of a diamond broker gunned down in a parking garage; a body disappears on the way to the medical examiner's laboratory.

Horatio suspects revenge is behind the murder of a man who tortured Cuban refugees.

When a tourist unknowingly transporting a stolen Van Gogh is murdered, Kono and Chin go undercover into the world of black market art; McGarrett asks chef Masaharu Morimoto to train Kamekona for a shrimp cook-off.

When a neurosurgeon is murdered right before a procedure, the stunning truth about a decades-old disappearance of four school boys is revealed; McGarrett's car is stolen.

A patient with a contagious and deadly strain of bird flu is kidnapped -- and the people responsible plan to weaponize the virus.

Kono must fight for her life after discovering a notorious criminal's identity; Adam's ties to his formerly corrupt family business leave Kono feeling concerned.

The members of the Five-0 investigate a journalist's past after he is killed; as Valentine's Day draws near, a text mix-up causes Danny to overreact.

Five-0 and an ATF agent (Melina Kanakaredes) from California team up when a serial arsonist targets couples in Oahu; Amber's abusive ex tracks her down while she is on a romantic getaway with Danny.

Danny and McGarrett work on their relationship as they pursue a woman who escaped after a diamond robbery.

When Chin and Danny are taken into custody over past deadly transgressions, McGarrett turns to Joe for help.

McGarrett and Odell come under assault at the barbershop while trying to protect a young man being hunted by a gang; Jerry is accused of a series of home invasions.

The wife of one of Grover's closest friends falls to her death; Dr. Shaw and Danny are stuck in an elevator with a body that needs processing.

After a murder takes place at a convention of Elvis impersonators, the victim's body is stolen; Gabriel asks Chin for help.

When a dead woman is found in a hotel suite belonging to three married, hungover men, the team must help them retrace their steps as they try to remember what happened -- and find the killer.

During a solo outrigger trip, Kono encounters bad weather and must fight for her life; the Five-0 investigates a man in trouble for cooking meth.

After apprehending a fugitive, a bounty hunter is murdered; Rachel reveals a secret to Danny that has ramifications; Chin talks to McGarrett about his concerns regarding Adam.

On the eve of Adam and Kono's wedding, the Five-0 must stop a fanatical patriot who wants to detonate stolen nuclear warheads and place the blame on a terrorist -- resulting in a new war on terror.

MacGyver and Riley must find a way to drive a tanker filled with liquid oxygen through a region occupied by rebels and deliver it to a children's hospital; Riley helps MacGyver decide whether to allow his father back into his life.

Mac and Jack rush to Mexico to help capture the leader of a drug cartel while the country celebrates Día de Muertos.

Murdoc abducts MacGyver's girlfriend to force Mac to help him rescue his son from a kidnapper; a dangerous person from Murdoc's personal life shows up, giving Mac a glimpse into the villain's past.

Matty sends the team to Ghana to recover a hard drive from an e-waste landfill that is run by a powerful and violent man, leading them to speculate about what could be on the device.

An Irish military intelligence officer claims to know the whereabouts of a lethal bomb maker whom Mac has been hunting for years.

When a vial containing a deadly virus is stolen from the Center for Disease Control in Atlanta, MacGyver and team race to recover it before the thief unleashes a global pandemic.

Matty reveals the shocking secret that her husband has been undercover in a criminal organization for eight years; when his status as a CIA agent comes out, Matty needs MacGyver to find and extract her husband before it's too late.

Mac and Jack's mini-vacation is cut short when someone from their past abducts them and locks them in a concrete room; Matty tasks Riley, Bozer and Leanna with stealing a diamond encoded with terrorist intelligence from a princess in Milan.

The investigation into frozen bodies found floating in a body of water in Nevada leads the team to believe the victims were members of a cult; J.J. confronts her trauma over her abduction.

The team searches for a killer who calls the authorities before committing his crimes; as Rossi prepares for a visit with his daughter, he gets news about the death of an old friend.

The members of the BAU team are brought back to their origins as they look at one of Gideon and Rossi's old cases.

When a hero emerges from the wreckage of an explosion in Indianapolis, the BAU team members must protect him as they try to identify the person responsible before more bombings occur.

The members of the BAU team search for a suspect who may have witnessed abuse as a child; Kate is worried when her niece and a friend make plans with a boy they met online.

When two guards at a maximum security prison are murdered, the BAU team thinks one or more people within the prison walls may be responsible.

The BAU tracks a serial killer in Wisconsin; Kate is faced with trouble when her niece, Meg, starts acting out.

When an up-and-coming congressman's wife disappears, the team investigates his political enemies as potential suspects.

International Unit Chief Jack Garrett (Gary Sinise) and his team requires assistance from the BAU when a family of four is abducted during their Barbados vacation.

When the members of a family are found murdered at their dining room table, the team looks for secrets in their past; Hotch tries to make peace with his father-in-law (Ed Asner).