Cassidy (Jessica Steen) blames herself when the team learns that a tip on terrorist activity was a trap that resulted in the deaths of two agents.

When a petty officer on whom McGee based a character for his latest book is murdered, McGee must figure out who could have accessed his secret manuscript.

Gibbs and the team must take action after the director's risky solo meeting with an informant ends with a death.

The team turns to a blind photographer (John Billingsley) to use his heightened senses of hearing and smell to re-create a crime scene and track down a petty officer's killer.

Gibbs leads the investigation into a murder victim found in a taxi headed to NCIS headquarters; Jenny discovers a secret about her past.

Upon the director's return from a European junket, the team's secrets unravel; a merciless drug dealer holds Dinozzo and his girlfriend captive.

The boys, as three traveling salesmen, vow never to wed, but unbeknownst to Moe and Curly, Larry has recently been married.

The Three Stooges gain control of Moronica.

The boys track gem thieves.

Brennan and Booth investigate a young beauty queen's remains that are discovered at a water filtration plant; Hodgins asks Angela out on a date, which she accepts.

The skeletal remains of a federal prosecutor, who disappeared five years earlier, are discovered in the desert outside Las Vegas; an anonymous lead takes Booth and Brennan to the world of gambling and underground ultimate fighting.

Booth and Brennan search for a killer who buries his victims alive and leaves them to die if ransom demands are not met.

Brennan and Booth investigate when a headless corpse appears in the woods along with a frightening videotape of events on the night of the murder.

A freewheeling Detroit cop pursuing a murder investigation finds himself dealing with the very different culture of Beverly Hills.

The hard-nosed Detroit cop returns to Los Angeles to help solve another case. This time he must direct his efforts towards unraveling the Alphabet Crimes, a series of robberies committed by leather-jacketed punks.

Survivors (Woody Harrelson, Jesse Eisenberg, Emma Stone) of a zombie apocalypse use creative means to dispatch the undead as they make their way toward a rumored safe haven in Los Angeles.

The detectives sort through a murdered tenant's long-running battle with her landlord in order to find a possible suspect.

Detectives investigate the shooting death of a once-popular singer's wife.

Lt. Van Buren discovers that someone may have tampered with evidence she used to convict a man 12 years earlier.

Environmental extremists are accused of starting a lethal blaze that destroys a high-rise and kills a young woman.

When a guest winds up dead at a club, the detectives believe that a popular rapper has something to do with the murder.

To solve the murder of a black publisher, the detectives reconstruct an argument he had with a man over a taxi.

Briscoe and Green search for a suspect with a grudge against God after a priest is murdered while taking a confession.

The detectives suspect a man caring for a dying daughter may be responsible for the murder of an insurance executive.

Southerlyn risks her life and career to negotiate the release of a murder suspect's hostage.

Frantic parents urge detectives to find their missing 24-year-old daughter, who worked as an aide to a state senator.

The Internet and computer files are linked to the vicious stabbing death of a female psychologist during a probe by Detectives Briscoe and Green.

A troubled girl suffocates when her adoptive mother and an unlicensed counselor resort to an extreme therapy simulating birth.

When a teenager is murdered, the detectives suspect two male classmates who resented her exposing their pornographic Website.

High above the city of Gibraltar, Barbary macaques, Europe's only non-human primates, live lives full of kidnappings and high drama; in the cemeteries of Vienna Grave Robbing European hamsters do battle with each other for food.

Oceans dominate the world's weather systems while supporting a wide range of life.

Half-moon fish; loggerhead turtles; schools of sardines and tuna; vastness of the ocean.

Predators utilize marshes created by tides; finback and humpback whales; sand crabs; surfing snails; dolphins.

Examining the fragile ecosystems and colorful life surrounding coral reefs.

Plankton use sunlight as an energy source in temperate-sea habitats.

Life on the edge of frozen seas near the North and South poles.

Breeding forces animals to come onto land; eagles; marine iguana; Olive Ridley turtles; killer whales hunt sea lion pups; rockhopper penguins.

Faced with a tight budget, a baseball manager and his partner recruit bargain-bin players that scouts have labeled as flawed, but have game-winning potential.

U.S. soldiers encounter heavy fire while trying to capture a warlord's associates in Mogadishu, Somalia.

Astronauts Jim Lovell, Fred Haise and Jack Swigert try to return to Earth after an explosion aborts the April 1970 moonshot.

Hiding out with help from his allies, Layton lays track for revolution; an engineering emergency threatens every soul on Snowpiercer.

On a divided Snowpiercer, Melanie intensifies her search for Layton; Layton is weaponizing her secret; Third Class faces a reckoning when he presents them with a choice.

Revolution has finally come and Layton leads the lower classes forward in armed rebellion; Melanie's house of cards collapses and she's in danger of becoming the first casualty.

The rebel forces are on the ropes when a dangerous foe defects to their side; they hatch a final plan to take control of Snowpiercer once and for all, but it comes at a grave, moral cost.

In the revolution's aftermath, Layton struggles to govern the shell-shocked survivors; Melanie finally makes peace with her demons.

The boys hit on vaudeville.

The boys trail burglars to a Scottish castle.

Oceans dominate the world's weather systems while supporting a wide range of life.

Predators utilize marshes created by tides; finback and humpback whales; sand crabs; surfing snails; dolphins.

Examining the fragile ecosystems and colorful life surrounding coral reefs.

Plankton use sunlight as an energy source in temperate-sea habitats.

Life on the edge of frozen seas near the North and South poles.

Breeding forces animals to come onto land; eagles; marine iguana; Olive Ridley turtles; killer whales hunt sea lion pups; rockhopper penguins.

U.S. soldiers encounter heavy fire while trying to capture a warlord's associates in Mogadishu, Somalia.

Astronauts Jim Lovell, Fred Haise and Jack Swigert try to return to Earth after an explosion aborts the April 1970 moonshot.

Navy lawyers defend two Marines accused of killing a private at the naval station at Guantánamo Bay, Cuba.

Duncan, almost tech titan, must prove he and his company are F-able; JoAnne provides therapy with benefits; Orson lands from Baltimore; the party for Dr. Green ends in a cat burglary.

Navy lawyers defend two Marines accused of killing a private at the naval station at Guantánamo Bay, Cuba.

The son of an honest bus driver looks up to a local mob boss amid racial tension in the 1960s New York.

Four rival families leopards, hyena, wild dogs and lions all trying to claim a rich corner of Zambian paradise as their home; who will succeed in ruling this precious kingdom?

Leopard Mutima's relationship with her mother is at breaking point, and as the balance of power in Nsefu tips towards the lions, the hyena and wild dogs fight to raise their young.

Wolves are released into Yellowstone National Park after a 70-year absence, setting off a series of events within the food chain.

Okavango is rich in diverse wildlife; a cycling inland delta.

In 1992 Bogotá, a little girl watches crime lord Don Luis and his henchman Marco murder her parents. Fifteen years later, the now-grown Cataleya, who is named for a Colombian orchid, works as a contract killer for her Chicago-based uncle.

Jake goes to live with Judith and Herb after learning that Alan has been dating Eldridge's mom; Charlie decides to cut back on his drinking.

When Lindsey asks Alan to move in with her, Charlie will do anything to get him to agree to it.

After moving in with Lyndsey, Alan continues to have a rendezvous with Melissa at Charlie's house.

Lyndsey and Eldridge move into Charlie's house after their home burns down.

Alan pretends to be Charlie when he goes out on the town; Charlie sneaks off for cosmetic surgery.

Charlie has difficulty dealing with dating a slightly older woman.

Charlie's girlfriend gets fed up with his stalker, Rose.

Charlie and Alan try to set Evelyn up with the pharmacist, Russell.

Charlie falls for the woman who replaces Berta on her days off; Alan thinks Lyndsey's ex-husband is stalking him.

Charlie goes on a spending spree for old fling Courtney when she shows up after being in prison for three years.

Ashamed that he can't afford to buy a birthday present for Lyndsey, Alan gets creative.

Depressed after his breakup from Courtney (Jenny McCarthy), Charlie goes to see his psychiatrist (Jane Lynch).

Survivors (Woody Harrelson, Jesse Eisenberg, Emma Stone) of a zombie apocalypse use creative means to dispatch the undead as they make their way toward a rumored safe haven in Los Angeles.

Six years after creating Facebook in his dorm room, Mark Zuckerberg becomes a billionaire, but his great success leads to personal and legal complications.

Faced with a tight budget, a baseball manager and his partner recruit bargain-bin players that scouts have labeled as flawed, but have game-winning potential.

The detectives investigate the murder of an investment analyst who was recommending stock in a company now in high-profile bankruptcy.

Briscoe and Green probe the stabbing death of a young activist who was investigating a beef supplier known for operating in unsanitary conditions.

When the young wife of an investment banker plunges to her death, the discovery of a controlled substance in her system leads the murder investigation to several people displeased with the marriage.

A coach, a youth-baseball player and a desperate father are the prime suspects in the murder of a private investigator.

When murder strikes the family of a defense attorney, the detectives compile a list of suspects that includes a disgruntled client (Lord Jamar) and a former lover (Annie Parisse) with a dangerous ex-boyfriend.

Deals complicate a murder investigation when a mob boss' son offers to incriminate his father, while the father counters with information.

When a man suspects a neighbor is a terrorist waiting to strike, he resorts to vigilantism, then says he acted in self-defense.

Circumstances force an over-matched Curly into a wrestling ring against a superior opponent; a woman's perfume proves to be his secret weapon and saves him.

After Booth's gun is taken away because he maliciously shot a clown ornament on an ice-cream truck, Brennan must go to Florida alone to investigate the death of a college student whose body is found inside an alligator.

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.

Survivors (Woody Harrelson, Jesse Eisenberg, Emma Stone) of a zombie apocalypse use creative means to dispatch the undead as they make their way toward a rumored safe haven in Los Angeles.

Six years after creating Facebook in his dorm room, Mark Zuckerberg becomes a billionaire, but his great success leads to personal and legal complications.

Faced with a tight budget, a baseball manager and his partner recruit bargain-bin players that scouts have labeled as flawed, but have game-winning potential.

A trainer (Kevin Costner) in a Coast Guard program for rescue swimmers turns a cocky recruit (Ashton Kutcher) into his protégé and takes him on a mission to the Bering Strait.

An upstart stock-car driver goes to the edge for his manager, his brain-surgeon girlfriend and himself.

A troubled young man (guest star Wil Horneff) motivated by his religious beliefs becomes the prime suspect in a double homicide.

The murder of a high-school English teacher reveals a love triangle involving a 16-year-old and her faculty lover.

A rock singer's body is found in a garbage can with large amounts of heroin and cocaine in her system.

Detectives hope vacation video shot by a couple will help lead them to the murderer of an actress found shot to death in her apartment, but matters get complicated when the tourists decide to make a quick buck by selling the tape to a TV station.

A diamond ring identifies the skeletal remains of a murder victim who was believed killed in the World Trade Center collapse.

Detectives suspect a young bride and her reputed lover (guest stars Gretchen Egolf and Bobby Cannavale) hired a hit on her husband.

The acquittal of an alleged cop-killer leads to the murder of a defense attorney and a suspect who may belong to a white supremacy group.

Frightened promoters fix a fight.

Peeping Tom's ghost wants to meet Lady Godiva.

Hannibal devises an elaborate escape plan after B.A. and Murdock are mistaken for accomplices in a robbery and sentenced to work on a chain gang.

B.A. and Murdock help a diner owner and his daughter fight a corrupt tycoon who wants their land for an off-ramp.

The team works from a pub to stop a loan shark (Joseph Sirola) from terrorizing small businesses; guest Wings Hauser.

To stop a mobster's takeover of local boxing events, Hannibal sets up a syndicate with B.A. fighting as Volcano Johnson.

Infatuated B.A. volunteers the team to help a Kenyan game warden (Daphne Maxwell) find the poachers who killed her brother.

As payment for a debt, the mob demands a reformed gambler (Jason Evers) sign over a foster home he and his daughter run.

Rebels pursue an Arabian princess (Sue Kiel) the team is escorting to her wedding; guests John Saxon, Frank Annese.

A trainer (Kevin Costner) in a Coast Guard program for rescue swimmers turns a cocky recruit (Ashton Kutcher) into his protégé and takes him on a mission to the Bering Strait.

An upstart stock-car driver goes to the edge for his manager, his brain-surgeon girlfriend and himself.

A former drug agent (Steven Seagal) and his old Army buddy (Keith David) exterminate a so-called Jamaican drug posse.

An archcriminal (Armand Assante) escapes in 22nd-century New York and seeks revenge on the lawman (Sylvester Stallone) who sent him to prison.

The team tracks a suspect targeting people in Detroit; Blake receives a life-changing proposition from her husband (D.W. Moffett).

The team investigates a series of deaths in Manhattan that seem to be related to ecstasy overdoses; Hotch makes a discovery about his estranged brother.

When the Replicator returns, a member of the BAU team is targeted.

The team tracks an increasingly devolving killer to Arizona; the team suspects Hotch is in the running to be the unit chief.

As the hunt for a ritualistic killer continues, a bizarre familial connection could help the team zero in on the suspect.

The BAU team must determine if the anniversary of the Kennedy assassination is a motivating factor when a sniper strikes Dallas.

The BAU team meets the new section chief (Esai Morales), who shares a long history with J.J.; an unknown subject leaves victims unable to communicate.

The summer melt of Arctic ice provides opportunities for millions of animals, but grave dangers for others, including polar bears.

Every summer in the seas of Alaska, humpback whales, sea lions and killer whales depend on an explosion of plant life, the plankton bloom; it transforms these seas into the richest on Earth, but these animals may not survive to enjoy the great feast.

The great flood in the Okavango turns 4,000 square miles of arid plains into a wetland, drawing in millions of animals including elephants and hippos.

A teen taps his computer into the NORAD missile-defense system and plays a video game, "Global Thermonuclear War.".

A former drug agent (Steven Seagal) and his old Army buddy (Keith David) exterminate a so-called Jamaican drug posse.

An archcriminal (Armand Assante) escapes in 22nd-century New York and seeks revenge on the lawman (Sylvester Stallone) who sent him to prison.

An English aristocrat hires Billy the Kid (Emilio Estevez) and five other outcasts to guard his New Mexico ranch.

Billy the Kid (Emilio Estevez) and his gang (Kiefer Sutherland, Lou Diamond Phillips) gallop to Mexico, chased by a federal posse led by Pat Garrett.

Doc Holliday joins Wyatt Earp and his brothers for an OK Corral showdown with the Clanton gang in Arizona.

A showdown between the NCIS team and an elusive arms dealer reaches an explosive conclusion.

Ducky makes a startling discovery that leads to the search for a missing child; Tony struggles to deal with his feelings for Jeanne.

Gibbs and Lt. Col. Mann investigate the murder of a Marine captain who had access to highly classified information; a witness in the case turns out to be Gibbs' ex-wife.

Gibbs and the team realize that a cadaver mistakenly tagged as a John Doe is actually that of a career felon with ties to a criminal mastermind.

A suicide attempt turns into a murder investigation when the team must talk a distraught naval officer out of jumping off a roof.

While investigating a death aboard a top-secret naval research ship in the middle of the ocean, the team discovers an abandoned ship and a deadly secret.

The boys seek relaxation at a sanitarium run by a quack named Doc Mallard.

A teen taps his computer into the NORAD missile-defense system and plays a video game, "Global Thermonuclear War.".

An English aristocrat hires Billy the Kid (Emilio Estevez) and five other outcasts to guard his New Mexico ranch.

Billy the Kid (Emilio Estevez) and his gang (Kiefer Sutherland, Lou Diamond Phillips) gallop to Mexico, chased by a federal posse led by Pat Garrett.

Doc Holliday joins Wyatt Earp and his brothers for an OK Corral showdown with the Clanton gang in Arizona.

Detectives accuse a professional ballplayer of killing the limousine driver who supplied him with steroids.

The smoldering corpse of an Asian girl is found outside the Chinese consul general's apartment, and detectives suspect she immolated herself as a political statement.

Detectives suspect foul play when a teenager dies after being struck by a vehicle in front of a coffee shop.

When half of a two-man gambling operation is found murdered, the detectives finger his partner as the prime suspect.

A vigilante priest kills a notorious drug dealer in the name of God; Briscoe is reminded of his daughter's death at the hands of a trafficker.

Two seemingly unrelated murders, stolen jewels and a case of mistaken identity lead to a defendant being tried for a crime without being present at the trial. Mandy Patinkin and Andrew McCarthy guest star.

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 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).

From the bone-dry deserts of the Atacama, where penguins weave their way through a minefield of snapping sea lions, to the lush cloud forests of the Andes, South America is full of unusual and ingenious wildlife.

A humpback whale and her calf; pygmy seahorses; seals attack king penguins.

Spring in the polar regions; the greatest seasonal transformation of the planet begins with the return of the sun.

Mountain ranges, perpetual night, pressure and temperature extremes create unusual life forms.

After being raised on the ice in winter, emperor penguin chicks find themselves abandoned by their parents in spring; to survive, they must find their own way across the treacherous sea ice to the rich waters of the Southern Ocean.

The descent of rivers from their mountain sources to the sea.

Remote islands offer sanctuary; pygmy three-toed sloth resides on a Caribbean island; nesting albatross thrive in isolation.

Asia's jungles are beautiful and exceptionally diverse, but whilst they provide shelter, food, and opportunity, they are also full of dangers and hidden threats.

In green seas, competition is fierce. Sunlight powers vast kelp forests, mangroves, prairies of seagrass and blooms of algae. Here, animals must fight for space and food. In kelp forests, a common octopus must become the ultimate escape artist.

Deserts sit side-by-side in the southwest corner of Africa, and in spite of the lack of water, they are teeming with life.

A child psychologist (Bruce Willis) tries to help a boy (Haley Joel Osment) who is traumatized by visitations from troubled spirits.

An FBI trainee (Jodie Foster) seeks advice from a brilliant, psychopathic prisoner (Anthony Hopkins) to catch a killer who skins his victims.

With the help of his brother (Joaquin Phoenix), a Pennsylvanian (Mel Gibson) investigates the appearance of 500-foot-diameter circles in his crop fields.

Mr. Wilford arrives; as this new threat rattles Snowpiercer to its core, Melanie makes a move that can't be undone.

An exchange is made between the two trains, but a far greater revelation might be just over the horizon.

Melanie embarks on her most dangerous mission yet, while Layton reckons with his personal choices.

As the Big Alice crew is granted shore leave on Snowpiercer, Layton and Wilford have differing opinions on the future.

Layton and Miss Audrey make a risky play for Big Alice, but Wilford has his own plans.

Plumber Stooges flood a garden party.