The Steel City is awash with heroin, and a deadly batch has hit the streets; enhanced.

Following the Dallas gangs and cartel connections that feed the addicts of east Texas; enhanced.

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

In this enhanced episode, Mexican cartels dominate the meth market via superlabs, hitmen and smugglers.

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The Coast Guard investigates the whereabouts of some smugglers and makes a remarkable discovery; the Search and Rescue helicopter team carries out a dangerous rescue operation over a tanker.

The Search and Rescue helicopter searches for a missing girl on Bonaire; the Royal Navy has to pull out all the stops to catch a drug boat; the Coast Guard is trying to rescue the drivers of a sinking water scooter.

The Coast Guard conducts a drug check on a party boat; the Search and Rescue helicopter team attempts a dangerous rescue on Curaçao's highest mountain.

The Coast Guard investigates the whereabouts of some smugglers and makes a remarkable discovery; the Search and Rescue helicopter team carries out a dangerous rescue operation over a tanker.

The Search and Rescue helicopter team tries to rescue the crew of a sunken sailing boat; the Royal Netherlands Navy makes a spectacular drug seizure; the Coastguard spots suspicious persons in the marina and goes to investigate.

The Search and Rescue team assists a boy who may have broken his back.

The Coastguard inspects a suspicious Colombian ship with a concealed hatch; the Metal Shark team rescue a Swedish sailboat that went missing.

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

HSI runs a human trafficking sting; CBP arrests a domestic terror suspect.

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

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

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

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.

PR AMO team hunts down boat loaded with $41 million of coke; CBP gets a tip about money smugglers and finds cocaine and people inside car trunks.

HSI performs an undercover drug sting; CBP finds cocaine in Rio Grande Valley.

Agents arrest a woman carrying small purses loaded with cocaine; cocaine is found inside packets of hair bleach; a woman hides cocaine in her undergarments.

Two carriers, one flight; capsules taped to body parts and ingested; false compartments.

A woman smuggles cocaine inside packets of hair bleach; a man's photos of the pope act as a clever hiding place for drugs.

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

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

Smugglers will try anything to move their product through Colombia's biggest airport, El Dorado International Airport.

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Jacuzzi Bath Remodel and interior designer Christina Haack shares how to transform your bathroom into a gorgeous, safe, stylish space in as little as one day.

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Archaeologists excavate a buried city in Jordan, dive a sunken temple in Italy and explore Petra to shed new light on how Rome conquered the east.

Discoveries uncover how the Romans ruled the seas for four centuries.

Archaeologists reveal the discovery of a Nero megastructure.

Archaeologists excavate the vast frontier of the Roman Empire, investigating the battle to keep it safe.

New discoveries reveal the secrets of Roman gladiators' enduring appeal.

Archaeologists dig in Pompeii to uncover the dark side of the idyllic Roman city by finding the room of an enslaved person.

Chef Ramsay journeys to Louisiana to learn the secrets of Cajun cooking; he meets Eric Cook, a former Marine turned celebrated chef who sends him off to get lost in the marsh and see what he brings back.

Chef Ramsay explores Tasmania, off the coast of southern Australia; he discovers the purity of the island, diving into shark-infested waters for giant saltwater spiny lobsters; avoiding venomous snakes in the bush while foraging for local herbs.

Chef Ramsay gets up close with rhinos, giraffes, zebras and hippos in the dramatic wilderness of KwaZulu-Natal, South Africa, as he learns the secrets of the traditional cuisine of Zulu warriors and masters using a local braai.

In northwestern Norway, chef Ramsay masters the unforgiving elements and strong Viking traditions as he discovers the secrets of Nordic cuisine.

Chef Gordon Ramsay's quest to master the world's most fascinating cuisines lands him on the Indonesian island of Sumatra, where he risks his safety and his pride to acquire the ingredients he needs.

Stanley ventures beyond Rome to explore its less visited countryside.

Stanley Tucci revels in the culinary artistry of the picturesque region of Tuscany; the spirit of creativity is alive in the birthplace of the Renaissance.

Stanley discovers surprises in this wild region he has never visited before; he investigates how the rugged terrain influences the food and culture; high in sheep country, he prepares mutton on a traditional barbecue.

Stanley explores the revolutionary spirit of Italy's industrial heartland, where the cuisine and ingredients are unique and innovative.

Stanley delves into the identity of Italy's northernmost region, where many speak German as well as Italian, and the cuisine reflects both cultures.

Chef Gordon Ramsay's quest to master the world's most fascinating cuisines lands him on the Indonesian island of Sumatra, where he risks his safety and his pride to acquire the ingredients he needs.

In northwestern Norway, chef Ramsay masters the unforgiving elements and strong Viking traditions as he discovers the secrets of Nordic cuisine.

Chef Ramsay gets up close with rhinos, giraffes, zebras and hippos in the dramatic wilderness of KwaZulu-Natal, South Africa, as he learns the secrets of the traditional cuisine of Zulu warriors and masters using a local braai.

Chef Ramsay explores Tasmania, off the coast of southern Australia; he discovers the purity of the island, diving into shark-infested waters for giant saltwater spiny lobsters; avoiding venomous snakes in the bush while foraging for local herbs.

Chef Ramsay journeys to Louisiana to learn the secrets of Cajun cooking; he meets Eric Cook, a former Marine turned celebrated chef who sends him off to get lost in the marsh and see what he brings back.

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See how one company is changing people's lives by helping them put their tax problems to rest.

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At the onset of winter, Alaskans combat threats; a storm batters Kavik as Sue fortifies camp; Ricko searches for elusive wildlife; the Hailstones ice fish; Johnny secures food in the Brooks Range.

The winter season grows more erratic, and Alaskans are forced to adapt.

As the deep cold persists, Alaskans must carry on their way of life.

As daylight fades, Alaskans contend with threats lurking in the shadows.

Alaskans face long days and uncertain outcomes during trapping season.

Alaskans must adapt to new obstacles to survive in deep winter.

Alaskans are forced to embrace their inner warrior as winter deepens.

Alaskans soldier through the heart of dark winter in pursuit of the resources they desperately need for survival.

A new generation of survivalists are put to the test in the frozen Arctic.

Archaeologists explore life and death in Ancient Egypt's metropolis, Alexandria.

Archaeologists investigate the battle strategies of Ramses the Second, Egypt's Warrior Pharaoh.

Archaeologists explore hidden tombs and find spectacular mummies.

Archaeologists unearth new clues about a forgotten dynasty, the Sun Kings.

Archaeologists uncover the secrets and rivalries of Egypt's last dynasty.

Investigates the rise of Egypt's first pharaohs, how they united Upper and Lower Egypt and shaped early culture, politics and monumental architecture.

Drug dealers use extreme violence on the streets of Oakland, Calif., while elite undercover detectives aim to bring them down.

Baltimore is the heroin capital of the United States; everyone on the street is grinding for dope money; now, the hustle mind set is spreading to the suburbs; enhanced.

Cocaine and marijuana dominate a drug-fueled, 24-hour lifestyle for Londoners, who work hard and play even harder; enhanced.

The facts behind the illegal drug trade, from Mexican cartel trafficking to the tourist industry in Las Vegas; enhanced.

The clear and present danger of meth, crack and heroin on the streets of San Francisco; enhanced.

Chicago is saturated with record levels of overdoses and homicides as gangs fight over drug turf; enhanced.

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

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Alaskans must work day and night to ensure their survival.

Arctic residents must persevere no matter the hand they are dealt.

A long winter forever changes the paths of Port Protection's residents.

Carl hunts a deer; Troy dives and Curly and Veronica embrace danger.

In Port Protection, tools aren't always used for what they're intended.

Curly helps battle a group of deadly trees on his neighbor's property.

In Port Protection, good friends equal survival, as one hand helps another.

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.

The Port Protection residents are back to paving with good intentions.

In Port Protection, the old guard passes on wisdom to a new generation.

Alaskans have a brief window of time to harvest vital resources to sustain themselves.

The Port Protection residents are back to paving with good intentions.

When a truck crashes into a snowbank in the mountains, Thord and rookie Terje must put their lives at risk to save its valuable cargo.

At the onset of winter, Alaskans combat threats; a storm batters Kavik as Sue fortifies camp; Ricko searches for elusive wildlife; the Hailstones ice fish; Johnny secures food in the Brooks Range.

The winter season grows more erratic, and Alaskans are forced to adapt.

As the deep cold persists, Alaskans must carry on their way of life.

As daylight fades, Alaskans contend with threats lurking in the shadows.

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Jacuzzi Bath Remodel and interior designer Christina Haack shares how to transform your bathroom into a gorgeous, safe, stylish space in as little as one day.

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The clear and present danger of meth, crack and heroin on the streets of San Francisco; enhanced.

The facts behind the illegal drug trade, from Mexican cartel trafficking to the tourist industry in Las Vegas; enhanced.

Cocaine and marijuana dominate a drug-fueled, 24-hour lifestyle for Londoners, who work hard and play even harder; enhanced.

Baltimore is the heroin capital of the United States; everyone on the street is grinding for dope money; now, the hustle mind set is spreading to the suburbs; enhanced.

Drug dealers use extreme violence on the streets of Oakland, Calif., while elite undercover detectives aim to bring them down.

HSI busts date-rape drug traffickers; CBP stops a car filled with cocaine.

CBP and HSI work together to take down traffickers of coke and marijuana.

CBP seizes fentanyl, coke and heroin; HSI Miami intercepts outbound guns.

CBP seizes suitcases of drugs bound for the UK and looted ancient statues.

CBP El Paso uncovers a massive meth load in a railcar; HSI Miami investigates a counterfeit passport ring, with a son implicating his own mother.

AMO Puerto Rico finds cocaine on a ferry; CBP stops travelers with opioids.

HSI busts meth smugglers in San Diego; CBP intercepts drug body carriers.

AMO chases a boat tossing cocaine overboard. CBP seizes pills from a pilot.

A young CIA officer is kidnapped abroad, triggering a tense 24-hour standoff.

HSI finds illegal guns in Miami; CBP in Texas seizes meth worth millions.

AMO chases a boat tossing cocaine overboard. CBP seizes pills from a pilot.

A young CIA officer is kidnapped abroad, triggering a tense 24-hour standoff.

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

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

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

A suspicious speedboat immediately raises a red flag at headquarters.

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

Join your hosts Kevin Cash & Cory Cady as we discuss the 250th Anniversary of America with the official "America 250" logo on a Silver American Eagle label. We are locking in orders for this iconic release, but coins are limited! Don't miss out!

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Every five seconds there's a victim of identity theft; LifeLock helps alert, restore identity, and reimburse lost funds-leading the way in protecting families every day.

See how one company is changing people's lives by helping them put their tax problems to rest.

Archaeologists explore life and death in Ancient Egypt's metropolis, Alexandria.

Archaeologists investigate the battle strategies of Ramses the Second, Egypt's Warrior Pharaoh.

Archaeologists explore hidden tombs and find spectacular mummies.

Archaeologists unearth new clues about a forgotten dynasty, the Sun Kings.

Investigates the rise of Egypt's first pharaohs, how they united Upper and Lower Egypt and shaped early culture, politics and monumental architecture.

Archaeologists uncover the secrets and rivalries of Egypt's last dynasty.

An epic journey around Mars, built from data, as one has never seen it before.

On Jan. 28, 1986, the Space Shuttle Challenger breaks apart 73 seconds into its flight, killing all seven crew members, including teacher Christa Mcauliffe, who was the first civilian to be launched into space.

The history of the base's development, up-to-date information and expert interviews.

The U.S. Government's secret Pentagon program on UFOs is exposed.

Project Blue Book is launched to study the country's growing UFO problem.

U.S. nuclear missiles malfunction after a close encounter with UFOs.

More military and commercial pilots are reporting seeing UAPs in flight.

Area 51, shrouded in secrecy for decades, is the focus of many UFO rumors.

The history of the base's development, up-to-date information and expert interviews.

After exhausting all leads, coroner Scott McCord turns to the DNA Doe Project to try and identify one of the victims of serial killer Larry Eyler.

For 38 years, the identity of a Texas murder victim has been a mystery; police team up with the DNA Doe Project to find out who she was.

DNA detectives attempt to identify a young female found dead in the desert.

DNA detectives attempt to identify a man crushed under ice in a rail-car.

Detective Bryan Johnson's first case is a homicide; to solve it, he first needs to identify the victim, so he enlists the help of the DNA Doe Project.

A scientist challenges the traditional view of paleoanthropology.

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Save thousands on car repairs.

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A young CIA officer is kidnapped abroad, triggering a tense 24-hour standoff.

AMO chases a boat tossing cocaine overboard. CBP seizes pills from a pilot.

Trouble with mice, high winds, and possible explosives at Toronto Airport.

Toronto Airport takes safety seriously, as challenges impact operations.

Spring break brings new pressures for the airport and its staff.

Spring arrives, and Toronto airport faces new weather challenges.

Winter storms batter the U.S. and ground flights at Toronto Airport.

Toronto Airport is on high alert as intruders infiltrate restricted areas.

Winter slams Toronto International Airport as teams prep for a huge storm.

Emergency at Toronto International Airport as a flight crash lands.

A runway emergency, missing cargo, faulty brakes and wildlife on the runway; at Toronto International Airport, the fight to keep flights moving never stops.

Frozen planes, an injured flight attendant and a drunk trespasser keep the team on their toes as the big freeze hits Toronto International Airport.

Explore the extreme airport runways where landings push pilots to their limits.

Perilous roads worldwide reveal how travel can turn deadly in an instant.

A runway emergency, missing cargo, faulty brakes and wildlife on the runway; at Toronto International Airport, the fight to keep flights moving never stops.

Explore the extreme airport runways where landings push pilots to their limits.

Perilous roads worldwide reveal how travel can turn deadly in an instant.

Frozen planes, an injured flight attendant and a drunk trespasser keep the team on their toes as the big freeze hits Toronto International Airport.

Emergency at Toronto International Airport as a flight crash lands.

Winter slams Toronto International Airport as teams prep for a huge storm.

Toronto Airport is on high alert as intruders infiltrate restricted areas.

Discover the Nectar Tri-Comfort Cooling Pillow for the ultimate sleep experience! Adjustable to three firmness levels to provide customized support and cooling all night long. Order NOW to get a second pillow FREE, plus a 30-night home trial!

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Discover the Nectar Tri-Comfort Cooling Pillow for the ultimate sleep experience! Adjustable to three firmness levels to provide customized support and cooling all night long. Order NOW to get a second pillow FREE, plus a 30-night home trial!

The Coastguard seizes a boat carrying over 3 tons of drugs.

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

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

A suspicious speedboat immediately raises a red flag at headquarters.

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

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

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

HSI attempts a controlled delivery of meth in New York City, while CBP seizes party drugs in Florida.

CBP discovers abandoned fentanyl in Texas; HSI tracks an ecstasy package in Chicago.

CBP finds coke on cargo ships in Miami; HSI pursues a drug-loaded SUV in Texas.

AMO Puerto Rico finds cocaine on a ferry; CBP stops travelers with opioids.

AMO Puerto Rico sinks a marine smuggling op; HSI San Diego seals up a drug tunnel.

HSI Miami catches a load of cocaine-filled fish; CBP San Diego fights human smuggling.

HSI busts a ketamine smuggler, while CBP uncovers ancient gold looted from Afghanistan.

HSI busts a notorious dark web trafficker in France, while CPB finds fentanyl in Arizona.

HSI busts meth smugglers in San Diego; CBP intercepts drug body carriers.

AMO Puerto Rico finds cocaine on a ferry; CBP stops travelers with opioids.

CBP El Paso uncovers a massive meth load in a railcar; HSI Miami investigates a counterfeit passport ring, with a son implicating his own mother.

CBP seizes suitcases of drugs bound for the UK and looted ancient statues.

CBP seizes fentanyl, coke and heroin; HSI Miami intercepts outbound guns.

CBP and HSI work together to take down traffickers of coke and marijuana.

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Jacuzzi Bath Remodel and interior designer Christina Haack shares how to transform your bathroom into a gorgeous, safe, stylish space in as little as one day.

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Liz Bonnin travels to Africa's Kalahari Desert to witness the teamwork of meerkats and to the beaches of Mexico as sea turtles hatch in unison.

Gordon visits Iceland's west coast to discover ingredients and cooking techniques that utilize the land of fire and ice's native volcanic landscape.

Chef Ramsay explores the untouched peninsula of Istria, Croatia for ingredients; he fights for oxygen freediving for local mollusks, risks his pride fishing for rare cuttlefish and chases after goats for cheese and donkeys for milk.

Chef Ramsay discovers the rugged spirit and simplicity of cooking in seafaring Portugal; Gordon will chase black pigs across a farm to feed them, brave giant waves for barnacles and sail the open seas to fish for sardines.

Chef Ramsay journeys from the coast to the mountains of southern India to unlock the complex flavors of the spice capital of the world.

Gordon Ramsay journeys deep into the wild South American rainforest to hunt, fish and explore the culinary roots of Guyanese cooking.

Will Smith heads to the South Pole to meet remote scientists.

Will Smith ventures into the Amazon in search of deadly creatures.

Will travels deep into the Amazon in search of a giant green anaconda.

Will heads to the Himalayas in search of the secret to happiness.

Will travels to a remote South Pacific island threatened by rising seas.

Will travels to the Kalahari Desert to learn the secrets of the San people.

Will heads to the North Pole for his final and most dangerous mission.

Captain Bruce and the Wildcard crew target 45 tons of mackerel in four months.

The Wild Card crew heads into port with 10 tons of prized Spanish mackerel.

Will Smith heads to the South Pole to meet remote scientists.

Captain Bruce and the Wildcard crew target 45 tons of mackerel in four months.

The Wild Card crew heads into port with 10 tons of prized Spanish mackerel.

Gordon Ramsay journeys deep into the wild South American rainforest to hunt, fish and explore the culinary roots of Guyanese cooking.

Chef Ramsay journeys from the coast to the mountains of southern India to unlock the complex flavors of the spice capital of the world.

Chef Ramsay discovers the rugged spirit and simplicity of cooking in seafaring Portugal; Gordon will chase black pigs across a farm to feed them, brave giant waves for barnacles and sail the open seas to fish for sardines.

Gordon Ramsay and his daughter Tilly face off in a Costa Rican culinary showdown.

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See how a drug-free patch is helping people find relief-without medication.

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Alaskans look to restock their food supplies as spring brings longer days.

Alaskans push their limits amid the warming tundra and melting landscape.

Alaskans embrace the flowing waters and returning wildlife of spring.

Alaskans must overcome rising waters to capitalize on spring's offerings.

Alaskans seek opportunities that come with spring, no matter the cost.

With the waterways open, Alaskans navigate rivers for key resources.

Daylight returns to the Arctic, bringing new opportunities for residents.

Alaskans face uncertainty in their quest to thrive in the warm season.

Alaskans make the most of the endless sun as the last of the snow melts.

Egyptologists' breakthrough in the search for Cleopatra - unlocking secrets of her royal home.