How the giant ice age mammoth became extinct.

A look into how prehistoric land mammals evolved into top ocean predators.

A look into how the T-Rex became king of the dinosaurs.

How the giant megalodon shark took over the oceans.

Aim for harmonious coexistence in spots where human and shark worlds collide.

Drop in at a pit stop for great whites and search for a north-south connection.

Contemplate shark community hierarchies and discover how they socialize.

Take a deep dive to find out what bull sharks and great whites do after sunset.

Hunt for signs of mating sharks and get a peek at their hidden pupping grounds.

Go on a risky tagging mission and get a 360-degree view of feeding hot spots.

Bertie Gregory decides to journey to South Africa to go swimming and diving with some great white sharks.

Bertie is in the Azores to film a spectacular predator feeding frenzy.

Hunt for signs of mating sharks and get a peek at their hidden pupping grounds.

Bertie Gregory decides to journey to South Africa to go swimming and diving with some great white sharks.

Bertie is in the Azores to film a spectacular predator feeding frenzy.

How the giant megalodon shark took over the oceans.

A look into how the T-Rex became king of the dinosaurs.

A look into how prehistoric land mammals evolved into top ocean predators.

How the giant ice age mammoth became extinct.

Taking a look at the excavations in the La Brea Tar Pits in Los Angeles and showcasing how the pits can help unravel the mystery of how the saber-toothed tiger hunted its prey.

Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

DraftKings Sportsbook, a top-rated sportsbook app!

Meet the new Shark PowerDetect Upright Vacuum with features like DuoClean Detect Technology, self-cleaning brush roll and odor neutralizing and you will be cleaning faster, smarter and better!

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Become a Dr. Seuss Coin Collector and secure all 8 releases featuring beloved classics, including an exclusive drop not available to anyone else. Each coin is struck from 1oz of .999 pure silver and graded MS70 with a mintage of just 5,000 coins.

Save thousands on car repairs.

The Medicare annual election period ends on December 7th. Watch and learn about Humana Medicare Advantage plans.

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Draining the Nile reveals lost secrets of the ancient Egyptian world.

The China seas are the most fiercely contested and mysterious waters on the planet.

Draining the oceans reveals wrecks awaiting treasure hunters.

Exploring evidence of underwater cities, which may be ancient archaeological sites or accidents of geology.

The secrets of lost ancient civilizations come to light when the Mediterranean is drained.

Draining the ocean reveals the Gulf of Mexico's most deadly secrets.

The hidden secrets of the Nazis are revealed when the oceans covering them are drained using CGI animation.

The Ring of Fire is an area in the Pacific Ocean where volcanoes, earthquakes and tsunamis form; the ocean is drained to reveal the geological forces behind natural disasters and to uncover threats along the coast of Seattle, Tokyo and New Zealand.

Agents at Jorge Chavez International Airport race to locate a suspect hiding in a surprising location; an arrogant smuggler with a stuffed suitcase has double the expected load.

A mother with a drug-saturated package in her suitcase says she is also being sent to work as a prostitute; a man claims drugs taped to his body are for personal use; a long-lost bag contains cocaine.

A divorced couple deny traveling together, but carry identical bags filled with cocaine; when a bag containing a white powder tests negative for cocaine, police decide to dig deeper.

Agents at Jorge Chavez International Airport detain a man with drugs in his suitcase who breaks down when speaking with his mother; a woman may be carrying cocaine-contaminated olives.

Agents arrest two traffickers carrying similarly branded bricks of cocaine; panicked asylum seekers refuse to cooperate, causing an uproar.

The anti-drug police must discover what is hidden by two women who try to leave the country with suspicious objects attached to their bodies; the immigration agents must unmask the true motives of the trip of three foreigners.

The Federal Police detect two passengers who could be traveling with drugs; immigration agents must use all their imagination to communicate and gain the trust of a group of passengers who enter the country under irregular circumstances.

Agents detain newlyweds smuggling cocaine on their bodies, a nervous woman has cocaine wrapped around her legs, and a designer bag has been strategically stuffed with drugs.

High-speed bombing tests raise doubts about one student's place in the course.

Trick-or-treating in Detroit on the scariest drug-fueled holiday of the year; enhanced.

Tales of dealers, police and snitches in Minnesota's Twin Cities; enhanced.

Thrill-seeking college students and money-hungry drug dealers collide during Florida's spring break; enhanced.

New Year's Eve revelry means drugs are hot commodities near Times Square.

Matt's pain from his 20 year old lost limb is solved.

Cut up to HALF the cost of your monthly cell phone bill. Same Towers. Same Coverage. But a LOT less money. It sounds great but is it too good to be true? Join myth-busting legend Kari Byron as she takes on Big Wireless to save you money.

Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

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Meet the new Shark PowerDetect Upright Vacuum with features like DuoClean Detect Technology, self-cleaning brush roll and odor neutralizing and you will be cleaning faster, smarter and better!

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Plexaderm helps reduce Under Eye Bags, Dark Circles, and Wrinkles in just 10 minutes!

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Gold has been the best long-term asset class for thousands of years. Find out how you can protect your financial future by diversifying your nest-egg with physical Gold today.

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The coastguard receives a call to help people stuck on a dangerous cliff.

A suspicious speedboat immediately raises a red flag at headquarters.

Divers abandon their anti-drug operation to attend to a potential drowning.

The Coastguard and other security teams battle enemies on all fronts.

The team chases a notorious drug trafficker who tries his luck again.

A high-speed chase tests the limits of the Coastguard's fastest boats.

Mariana delves into the world's most dangerous underground drug trades.

Mariana investigates the deadly world of illegal street racing.

Mariana travels to Vietnam to investigate reports that young women are being trafficked into China to be sold as unwilling brides.

Mariana investigates the mysterious next wave of America's opioid crisis.

Mariana heads to a Southeast Asian hotbed of scamming, where criminal organizations are holding thousands of hostages and forcing them to scam.

Mariana explores the growing influence of Mexican cartels in the U.S.

Mariana investigates the illegal trade in shark fins, going face-to-face with hunters and smugglers and undercover to explore the demand in the U.S.

Mariana retraces one of the world's most intractable smuggling routes, following cocaine's path around the world, from the Peruvian jungles to the Colombian coastline and to the streets of Miami.

Mariana dives into the world of international scamming to understand how it all works.

Mariana investigates the illegal trade in shark fins, going face-to-face with hunters and smugglers and undercover to explore the demand in the U.S.

CBP seizes $500K worth of coke; HSI arrests an importer of illegal pills.

CBP detains a man suspected of swallowing drugs; AMO agents find $51 million of coke.

LA HSI executes undercover drug buys; CBP intercepts Coyotes at the border.

SD HSI follows a loaded car; CBP and HSI test out a drug detection device.

CBP finds 100 kilos of coke in a banana shipment bound for a Philly bodega.

Legal professionals standing by to answer your questions.

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DraftKings Sportsbook, a top-rated sportsbook app!

Meet the new Shark PowerDetect Upright Vacuum with features like DuoClean Detect Technology, self-cleaning brush roll and odor neutralizing and you will be cleaning faster, smarter and better!

Paid programming.

Cut up to HALF the cost of your monthly cell phone bill. Same Towers. Same Coverage. But a LOT less money. It sounds great but is it too good to be true? Join myth-busting legend Kari Byron as she takes on Big Wireless to save you money.

Matt's pain from his 20 year old lost limb is solved.

Plexaderm helps reduce Under Eye Bags, Dark Circles, and Wrinkles in just 10 minutes!

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Experts reveal novel 2,000-year-old engineering secrets of ancient Rome.

Archaeologists investigate looting of pyramids and tombs of ancient Egypt.

Archaeologists investigate Cleopatra's downfall and hunt for her lost tomb.

Archaeologists investigate the mysterious Pyramid Kings and discover a lost temple.

Archaeologists investigate the rise of mummification and discover an intact ancient tomb.

Archaeologists unearth new evidence about the reign of Ramses the Great.

Archaeologists investigate the queens of ancient Egypt and excavate a pyramid.

Archaeologists investigate the mystery of King Tutankhamun's strange tomb.

Archaeologists investigate the secrets of the Boy King Tutankhamun.

Gordon Ramsay journeys to the Alaskan Panhandle to discover Alaskan cuisine; he learns how to cook seal with a native Tlingit elder, climbs a rock face in a snowstorm and goes grouse hunting before preparing a feast with local chef Lionel Uddipa.

Chef Gordon Ramsay travels to the island of Maui, Hawaii, to explore the secrets of Hawaiian cuisine along the rugged Hana coastline; he learns how to hunt deer with a bow, produce Hawaiian taro and spearfish with free diver Kimi Werner.

Deep in Morocco's Middle Atlas Mountains, Gordon Ramsay embarks on an adventure to unlock the secrets of the ancient Berber cuisine; he rappels over a waterfall to meet mushroom hunters, milks a camel and experiences the life of the Berber people.

High in Peru's Sacred Valley of the Incas, Gordon Ramsay travels by motorbike to unlock the secrets of high altitude cuisine.

Gordon Ramsay heads to New Zealand on a mission to discover the secrets of Maori cuisine.

Gordon Ramsay travels to Laos, where he kayaks down the Mekong in search of culinary inspiration; he samples the eggs of the weaver ant, dives for freshwater snails and hunts for water bugs; Ramsay cooks a banquet for monks at a temple.

The Ring of Fire is an area in the Pacific Ocean where volcanoes, earthquakes and tsunamis form; the ocean is drained to reveal the geological forces behind natural disasters and to uncover threats along the coast of Seattle, Tokyo and New Zealand.

The hidden secrets of the Nazis are revealed when the oceans covering them are drained using CGI animation.

Draining the ocean reveals the Gulf of Mexico's most deadly secrets.

The secrets of lost ancient civilizations come to light when the Mediterranean is drained.

Exploring evidence of underwater cities, which may be ancient archaeological sites or accidents of geology.

Draining the oceans reveals wrecks awaiting treasure hunters.

Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

Even if YOU do everything right to protect yourself, company and institutional data breaches are out of your control. Nearly 1 out of 4 US consumers have been a victim of identity theft. Find out how LifeLock can help protect your identity.

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Matt's pain from his 20 year old lost limb is solved.

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Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

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An archeologist makes the 22,000-foot journey to the peak of an Argentinian mountain near an active volcano and discovers the remains of children perfectly preserved as though they are asleep.

A German village is shocked when a body is found mutilated beyond recognition; when archaeologists investigate further, they find evidence of human sacrifice.

Human remains are found in the bog near Yde, Drenthe; the locals are quite shocked when they see her fiery red hair, which reminds them of the devil.

Peat diggers find a head near Silkeborg, Denmark and authorities investigate whether it is related to the missing boy; the police discover that the body is much older than the missing person and call the museum to investigate.

The human remains of a woman are found near Vejle, Denmark; an archaeologist begins to tell a story about who she was and why she was murdered, connecting her to ancient fairy tales and even King Harald Bluetooth.

Two bodies are discovered near the town of Weerdinger, Netherlands; locals jump to conclusions that the two bodies belong to a man and woman united in life and death.

Human remains are discovered near Croghan Hill, Ireland, a significant place for ancient kings; the investigation takes a turn when authorities realize the body is not a current missing person or murder victim.

In the mountains of Northern Italy, a discovery is made by a couple of mountaineers; in a nearly unreachable part of the world, human remains are found sticking out from a glacier; these turn out to be those of the oldest mummified human ever found.

Abandoned structures and machinery point to brief human occupations; disturbing noises make researchers explore a global psychological phenomenon; rubber-like slabs emerge on European beaches; a stone pattern is found in the waters of Florida.

Coastal erosion exposes skeletal remains; researchers discover a special type of spider; new evidence leads archaeologists to unravel the unsolved mystery of the lost Roanoke settlers; thousands of dead seals confound a wildlife enigma.

Ancient terraces made of volcanic rock in Indonesia leave their origin still in enigma; hundreds of human skeletal remains are unearthed; a blood-red beach on Hormuz Island ignites speculations; penguin remains are discovered.

Poveglia, a small island near Venice, Italy, is investigated; an exploration of Japan's Battleship Island reveals a troubled history; strange trees are found on the Yemeni island of Socotra; on Indonesia's Flores Island, a skull is found in a cave.

Human remains are unearthed on Daksa island; flying objects are spotted above Maury Island; on Isle of Wight, remains of a previously unknown species of dinosaur is found; strange ritual artifacts are uncovered on Sweden's Bla Jungfrun Island.

A volcanic island unveils its dark past; some burials shed light on a powerful ancient egyptian family; marble head is discovered off a Greek island; investigating the sudden disappearance of tagged sharks.

Stone artifacts, burial grounds, and temple ruins shed light on an unknown civilization; the discovery of a green light emitting in a dark forest; the remains of a long-lost temple are found; coral rubble is unearthed on Suakin Island.

In the mountains of Northern Italy, a discovery is made by a couple of mountaineers; in a nearly unreachable part of the world, human remains are found sticking out from a glacier; these turn out to be those of the oldest mummified human ever found.

Human remains are discovered near Croghan Hill, Ireland, a significant place for ancient kings; the investigation takes a turn when authorities realize the body is not a current missing person or murder victim.

Two bodies are discovered near the town of Weerdinger, Netherlands; locals jump to conclusions that the two bodies belong to a man and woman united in life and death.

The human remains of a woman are found near Vejle, Denmark; an archaeologist begins to tell a story about who she was and why she was murdered, connecting her to ancient fairy tales and even King Harald Bluetooth.

Peat diggers find a head near Silkeborg, Denmark and authorities investigate whether it is related to the missing boy; the police discover that the body is much older than the missing person and call the museum to investigate.

Human remains are found in the bog near Yde, Drenthe; the locals are quite shocked when they see her fiery red hair, which reminds them of the devil.

A look at the migration patterns of millions of animals on this planet that have been passed down for generations.

Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

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Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

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Port Protection's canine community takes center stage.

Curly takes advantage of a break between storms to hunt for deer.

Curly's deer hunt comes to a thrilling end with a shot gone awry; Sam, Troy and Terry struggle with uneven ground to build Troy a bathroom.

Eager to prove herself, Breanna splits from Oliver in search of deer; Terry helps Troy and Sarah while Squibb attacks Veronica's parking problem.

With big plans for the future, Oliver sets out to bring home some massive cedar trees that will help him turn his float house home into a kingdom.

Sam's desire to silence his generators ignites a fire that threatens to burn his house to the ground.

Winter approaches while young Alaskans navigate extreme circumstances to live off the land.

The Alaskans search for ways to survive the winter.

Alaskans must overcome nature's challenges to continue living their off-grid lifestyles.

Alaskans face challenges while living off the grid.

The next generation of Alaskans must break new ground to acquire valuable resources to survive the unforgiving winter.

High-speed bombing tests raise doubts about one student's place in the course.

Aircraft carrier landing is the most technical test yet for the students.

Take the ultimate guided tour onboard this global command center in the sky.

High-speed bombing tests raise doubts about one student's place in the course.

Aircraft carrier landing is the most technical test yet for the students.

Sam and Squibb attempt to salvage an unwieldy boat mast.

Hoping to add a new weapon to his fishing arsenal, Oliver hits the water with Carl, Matt and a new set of slinky pots, and they're in for a shock.

Milestone achievements are only possible with steep challenges in Port Protection; Carl and Matt pull a 3,000-gallon barrel up a cliff.

With the help of Troy and Sarah, Squibb tackles a ticking time bomb that threatens to kill all life in the Bay.

Curly Leach spends some final moments with a very dear old friend, leaving Port Protection for an easier life back on the grid.

Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

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Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

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Designer drugs are the new battleground in the war on narcotics.

An exploration into ecstasy's underworld.

How ketamine became the drug of choice for a new generation.

Boston students and dealers get ready for National Weed Day; enhanced episode.

In this enhanced episode, Hash is one of the most commonly used drugs on the planet.

Wall Street drug dealers attempt to be the first to close a sale; enhanced episode.

In this enhanced episode, every other drug used in Thailand is overtaken by a candy-colored pill.

Inmates find ways to get illicit drugs inside jailhouse walls.

CBP's K9 sniffs out hidden cash; HSI intercepts a $2 million drug deal.

HSI partners with Colombian National Police to dismantle illegal gold mining operations; CBP thwarts cartel activity in Texas.

HSI money laundering stings; CBP's largest drug seizure in LAX history.

CBP in JFK and HSI in San Diego tackle fentanyl crisis on opposite coasts.

In this enhanced episode, CBP finds meth in a shipment of chili peppers.

A brief holiday, a shady past, and goods in a woman's bag cause concerns.

A weapon raid, a tobacco smuggler returns, and a pork concealment fails.

An HSI stakeout leads to nearly $500,000 of meth and fentanyl in San Diego; CBP finds concealed cash and a carload of cocaine at the El Paso border.

In this enhanced episode, CBP finds meth in a shipment of chili peppers.

A brief holiday, a shady past, and goods in a woman's bag cause concerns.

A weapon raid, a tobacco smuggler returns, and a pork concealment fails.

Inmates find ways to get illicit drugs inside jailhouse walls.

Wall Street drug dealers attempt to be the first to close a sale; enhanced episode.

Boston students and dealers get ready for National Weed Day; enhanced episode.

How ketamine became the drug of choice for a new generation.

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Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

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The story of the Korean Peninsula and the effort to find lasting peace as told by the people who have tried.

Examining the beginning of Adolf Hitler's rise in popularity.

Examining Adolf Hitler's rise to becoming chancellor and Fuhrer of Germany.

Examining how Hitler turned Germany into a dictatorship and his path to expanding the Reich.

Examining the beginning of Hitler's genocidal war.

Examining the height of the holocaust.

Examining the end of Hitler's reign.

Archaeologists unearth new evidence about Ramses the Great.

Archaeologists investigate the suspicious death of Tutankhamun.

Archaeologists investigate Egypt's famous warrior king, Alexander the Great.

Archaeologists investigate how the river Nile transformed ancient Egypt.

Archaeologists investigate Egypt s most famous female pharaoh, Cleopatra.

Host Dan Snow explores the discovery of Egypt's Valley of the Kings.

Kathleen Martinez's 20-year hunt for Cleopatra's tomb leads her and a team offshore to explore a mysterious sunken site.

Host Dan Snow explores the discovery of Egypt's Valley of the Kings.

Kathleen Martinez's 20-year hunt for Cleopatra's tomb leads her and a team offshore to explore a mysterious sunken site.

Meeting four women rulers of Ancient Egypt, each with her own path to power.

Examining the beginning of Adolf Hitler's rise in popularity.

Examining Adolf Hitler's rise to becoming chancellor and Fuhrer of Germany.

Examining how Hitler turned Germany into a dictatorship and his path to expanding the Reich.

Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen.

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Draining Alaskas extreme north reveals the graveyard of a tragic fleet.

From Patagonia to Canada, paleontologists uncover the Real Jurassic Americas.

Archaeologists on land and sea reveal secrets of the infamous Alamo siege.

New discoveries at Pompeii and Herculaneum reveal the identities and final moments of those trapped during the eruption of a volcano 2,000 years ago.

Secrets of Pearl Harbor are revealed in wrecks of ships, subs and planes.

Revealing the drug smuggling routes that make cartels billions each year.

A lost Kingdom and an underwater cave reveal secrets about the ancient Maya.

A new discovery in the Baltic Sea reveals the story of a lost treasure.

A man tricks his girlfriend into smuggling drugs, turning their romantic vacations into a nightmare; a passenger hides drugs in food containers.

Police officers handle a woman trying to smuggle cocaine inside her body; a passenger tries to intimidate police agents.

A woman is arrested with her two children while trying to smuggle drugs abroad; a young woman breaks out in tears; a young man is thoroughly searched.

A man claims the alpaca rugs he carries are souvenirs, but they conceal drugs; a young woman hides drugs in her bag.

A woman with cocaine in her suitcase comes clean; a Japanese karaoke star is carrying more than music; a carrier implicates her own mother.

Police officers handle an unusual incident; officers discover a suspicious element inside a Serb's bag; a man tries to smuggle liquid cocaine.

Police stop a suspected drug smuggler traveling with her child; officers find a new way to hide cocaine.

In the Jorge Chávez Airport, anything can happen: passengers try to transport illicit substances in their luggage or in their bodies, parcels with drugs hidden in their structures or impregnated in fabrics, and even innocent-looking old women.

In this enhanced episode, every other drug used in Thailand is overtaken by a candy-colored pill.

In this enhanced episode, Hash is one of the most commonly used drugs on the planet.

An exploration into ecstasy's underworld.

Designer drugs are the new battleground in the war on narcotics.

Vancouver's suburbs hide a drug trade, spawning a gang rivalry; enhanced episode.

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Mariana investigates the illegal trade in shark fins, going face-to-face with hunters and smugglers and undercover to explore the demand in the U.S.

Mariana investigates the explosive world of armored car heists.

Mariana investigates the dirty business of bogus addiction treatment.

Mariana investigates the growing influence of heavily armed militias.

CBP seizes counterfeit medications, and HSI pursues a series of maritime smuggling cases.

CBP cracks down on party drugs, prostitution and counterfeit goods during the Super Bowl.

HSI takes down a suspected weapons trafficker with ties to organized crime; CBP is on alert for popular club drugs being concealed in liquid form.

HSI surprises a potential cocaine dealer outside a fast-food restaurant in Brooklyn.

Hidden among the millions who enter the U.S. through JFK, MIA and ATL is dangerous contraband; the Department of Homeland Security will stop at nothing to catch these smugglers.

HSI investigates cocaine concealed in cakes, and CBP cracks down on contraband cash.

HSI conducts a controlled delivery of meth; while CBP deals with an unruly passenger.