In Antarctica, emperor penguins reveal secret bonds they need to survive.

Simon and Sioux join local snake catchers to capture and remove snakes sheltering people's homes and places of work; along the way, they face off with India's most dangerous snakes, including a giant King Cobra.

The docs at Critter Fixer operate on an eel and perform a snake C-section.

In the Southern Ocean, courageous penguins break the rules to survive.

The Docs are awarded keys to the city for years of community service; helping a red tail boa; introducing a kid to a kid.

Looking into the journey and the story behind the notorious Stanford Prison Experiment, as told by its prisoners and guards.

The Docs at Critter Fixer treat a rescued pigeon with a surprising injury.

Hazen Audel descends sheer slopes into the Great Rift Valley in search of elephants.

The Docs at Critter Fixer attempt to remove an egg from a cockatiel.

Hazen Audel battles Lake Baringo's wild waters on an epic wildlife mission.

The docs at Critter Fixer attempt to MacGyver a turtle's broken shell.

Hazen Audel hits Hell's Gate Gorge in search of rare black rhinos while local foragers provide him with hints on how to locate the endangered species.

Hazen Audel is on a mission to reach a legendary coastal bat colony.

The Docs at Critter Fixer provide inspiration to animals and humans alike.

A faceoff develops over luxury counterfeits; agents detect potentially lethal powder; a CBP beagle finds the mother load of meat.

Suspected of smuggling narcotics, a jittery traveler's next stop is a medical facility; a pair arrives bearing a trophy; CBP question a DJ's find.

A tourist's uncertain vacation plans make him suspicious; two backpackers return with more than just memories; in Port Huron, a traveler carries a concealed weapon.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Scott visits a collector with plenty of outbuildings but soon discovers it has already been picked.

Polar boss Mark Kohaykewych mixes things up when he brings new soldier Mike Simmons into the winter roads battle; Todd Dewey and rival Darrell Ward both hit a newly opened trail.

The guys hope to find some great deals to sell out west in southern Ontario.

A faceoff develops over luxury counterfeits; agents detect potentially lethal powder; a CBP beagle finds the mother load of meat.

Suspected of smuggling narcotics, a jittery traveler's next stop is a medical facility; a pair arrives bearing a trophy; CBP question a DJ's find.

A tourist's uncertain vacation plans make him suspicious; two backpackers return with more than just memories; in Port Huron, a traveler carries a concealed weapon.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

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

Customs and Border Protection finds $1 million of cocaine in a cargo truck; Homeland Security Investigations cracks down on a date rape drug.

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.

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

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

HSI Colombia chases illegal gold; CBP thwarts cartel activity in Texas.

Port Protection's canine community takes center stage.

All around Port Protection, neighbors lend each other helping hands.

HSI Colombia chases illegal gold; CBP thwarts cartel activity in Texas.

Port Protection's canine community takes center stage.

All around Port Protection, neighbors lend each other helping hands.

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

Customs and Border Protection finds $1 million of cocaine in a cargo truck; Homeland Security Investigations cracks down on a date rape drug.

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.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

The guys go to a 70-mile garage sale in Prince Edward Island that has plenty of treasures and junk.

Polar's top dog Todd Dewey gets into trouble with a government contract; truck problems have Polar driver Art Burke's season headed for the gutter; ice road rookie Mike Simmons has his first solo delivery.

After stopping in Peggy's Cove, the guys bet to see who will find the ultimate East Coast prize.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Mariana journeys into gangland to understand the violence plaguing LA.

Mariana investigates how illicit oil is fueling terrorist groups worldwide.

Mariana embeds with crypto scammers who show her how they make millions.

Mariana investigates the growing popularity of bare-knuckle fighting.

Mariana tracks the illicit path of hashish from Morocco into Europe; a world of shadowy dealers, fast smuggling boats and endless wealth.

Health care costs have pushed millions of Americans to the black market.

Mariana investigates the dangerous, high-stakes world of illegal gambling.

Mariana heads to the Congo to investigate the illegal trading of wild apes that have apes on the brink of extinction.

Mariana investigates the dangerous, high-stakes world of illegal gambling.

The risk of a second bomb explosion causes widespread panic and leads to the evacuation of the bomb site; despite their convictions, rescuers must leave the trapped and frightened survivors behind.

Mariana heads to the Congo to investigate the illegal trading of wild apes that have apes on the brink of extinction.

Mariana investigates the dangerous, high-stakes world of illegal gambling.

The risk of a second bomb explosion causes widespread panic and leads to the evacuation of the bomb site; despite their convictions, rescuers must leave the trapped and frightened survivors behind.

Mariana journeys into gangland to understand the violence plaguing LA.

Mariana investigates how illicit oil is fueling terrorist groups worldwide.

Mariana embeds with crypto scammers who show her how they make millions.

Mariana investigates the growing popularity of bare-knuckle fighting.

In the American border, agents questions an African traveler with a one-way ticket; in Detroit, a passenger receives a special surprise; officers wait for a drug-smuggler to expulse a pack of cocaine.

An Asian woman arrives with an American man who is not her husband; CBP discover a large collection of vapes and vape oils in a traveler's luggage; an officer discovers undeclared items belonging to an American couple returning from Europe.

A traveler is suspected of smuggling cocaine; an officer questions a traveler with low funds and a lengthy travel plan; a family from Canada traveling with a puppy is barking up the wrong tree.

CBP has beef with a traveler when they discover undeclared meat in his fiancé's luggage.

The guys come across an old Victorian home while freestyling in Nova Scotia.

Darrell Ward and Lisa Kelly work to make good on a power play for their young company but could lose it all when Darrell's truck breaks down; Polar driver Todd Dewey has to backtrack hundreds of miles to recover lost freight.

A collector welcomes the guys into his home, garage and bar in Hudson, Quebec.

In the American border, agents questions an African traveler with a one-way ticket; in Detroit, a passenger receives a special surprise; officers wait for a drug-smuggler to expulse a pack of cocaine.

An Asian woman arrives with an American man who is not her husband; CBP discover a large collection of vapes and vape oils in a traveler's luggage; an officer discovers undeclared items belonging to an American couple returning from Europe.

A traveler is suspected of smuggling cocaine; an officer questions a traveler with low funds and a lengthy travel plan; a family from Canada traveling with a puppy is barking up the wrong tree.

CBP has beef with a traveler when they discover undeclared meat in his fiancé's luggage.

Time-honored methods outshine new technology in Alaska's brutal winters.

Alaska Natives live in balance with the animals of their shared lands.

Unpredictable winter weather challenges food security for Alaska Natives.

Alaska's Indigenous Peoples rely upon the lessons and values of their ancestors to harvest resources for their families and neighbors.

Alaska natives rely on the land as source of life in this enhanced episode.

An approaching spring brings new opportunities for subsistence living.

Generations of Indigenous peoples work to revive cultural practices once lost to colonization and raise the culture bearers of the future.

Alaska Natives use methods passed down from their ancestors to search for resources.

The doctors at Critter Fixer teach fish surgery at Tuskegee University.

Dr. Oakley operates on an unusual mass and investigates a musk ox with a hair loss problem.

Alaska Natives use methods passed down from their ancestors to search for resources.

The doctors at Critter Fixer teach fish surgery at Tuskegee University.

Dr. Oakley operates on an unusual mass and investigates a musk ox with a hair loss problem.

Time-honored methods outshine new technology in Alaska's brutal winters.

Alaska Natives live in balance with the animals of their shared lands.

Unpredictable winter weather challenges food security for Alaska Natives.

Alaska's Indigenous Peoples rely upon the lessons and values of their ancestors to harvest resources for their families and neighbors.

In Buffalo, officers search the vehicle of an American permanent resident; CBP are perplexed by a batch of ceramic pastries.

A family risks losing their stacks of cash; officers are on high alert after an American declares he is packing heat; CBP suspect a traveler is pulling a con job with his US work visa.

A CBP canine tracks a THC-toting traveler.

A traveler isn't blowing smoke when it comes to declaring her cigarettes.

The guys stop at an amateur historian's home in Quebec's Eastern townships.

Art Burke attempts to keep his rig above ground on a melting ice crossing; polar driver Alex Debogorski battles his way up a mud covered mountain.

On the way to Winnipeg, the van needs some mechanical TLC.

In Buffalo, officers search the vehicle of an American permanent resident; CBP are perplexed by a batch of ceramic pastries.

A family risks losing their stacks of cash; officers are on high alert after an American declares he is packing heat; CBP suspect a traveler is pulling a con job with his US work visa.

A CBP canine tracks a THC-toting traveler.

A traveler isn't blowing smoke when it comes to declaring her cigarettes.

A Border Collie causes isolation and a Chihuahua bites the hand that feeds her.

Cesar rehabilitates a loud, anti-social Chihuahua and her inexperienced pet parents.

Cesar helps sequestered sisters and a woman preparing for surgery.

A Boston terrier fights with an Akita next door; two terriers hunt dogs.

Cesar rehabs an overexcited labrador and a pushy adolescent doberman.

Fueled by fear, two brothers turn against each other in deadly attacks.

Cesar rehabs an aggressive Labradoodle with an alarming history of biting.

A documentary-style look into the personal lives of the country vets.

Back in the Yukon, the Oakleys help over 100 cattle and a rowdy mini mule.

Dr. Pol welcomes a new vet, Dr. Olivia, to the clinic.

A documentary-style look into the personal lives of the country vets.

Back in the Yukon, the Oakleys help over 100 cattle and a rowdy mini mule.

Dr. Pol welcomes a new vet, Dr. Olivia, to the clinic.

A Border Collie causes isolation and a Chihuahua bites the hand that feeds her.

Cesar rehabilitates a loud, anti-social Chihuahua and her inexperienced pet parents.

Cesar helps sequestered sisters and a woman preparing for surgery.

A Boston terrier fights with an Akita next door; two terriers hunt dogs.

A South American surfer's vague travel plans make waves with CBP.

A CBP canine is on the hunt for concealed contraband.

Planning a surprise visit to a married man could cause one traveler to be left at the airport; shocked by an undeclared stun gun, CBP race against time to find the owner before the plane boards.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

An 84-year-old collector in Balzac, Alberta has a property jam-packed with odd artifacts.

Darrell and Lisa fight to make it home over the hardest-hit trail; Art and the King of Obsolete reunite to haul a huge double trailer over a slick path; veteran Alex Debogorski races against the clock to deliver to a town in need.

Picking their way through Ontario, the guys may have hit the jackpot on a sprawling property full of outbuildings.

A South American surfer's vague travel plans make waves with CBP.

A CBP canine is on the hunt for concealed contraband.

Planning a surprise visit to a married man could cause one traveler to be left at the airport; shocked by an undeclared stun gun, CBP race against time to find the owner before the plane boards.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Hunting Egypt's lost treasures in the Valley of the Kings.

Hunting Egypt's lost treasures in the Valley of the Kings.

Archaeologists investigate Egypt s most famous female pharaoh, Cleopatra.

Archaeologists unearth new evidence of how the iconic pyramids evolved.

Archaeologists investigate the suspicious death of Tutankhamun.

Archaeologists investigate how the river Nile transformed ancient Egypt.

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

A monkey breaks a window; a bear crashes a party; a boy escapes sharks.

A monkey steals food, a lizard surprises a lady and a bear breaks a gate.

A cheetah steals a camera; a dog honks a horn; a rat plays a harmonica.

A monkey breaks a window; a bear crashes a party; a boy escapes sharks.

A monkey steals food, a lizard surprises a lady and a bear breaks a gate.

A cheetah steals a camera; a dog honks a horn; a rat plays a harmonica.

Hunting Egypt's lost treasures in the Valley of the Kings.

Hunting Egypt's lost treasures in the Valley of the Kings.

Archaeologists investigate Egypt s most famous female pharaoh, Cleopatra.

Archaeologists unearth new evidence of how the iconic pyramids evolved.

The two rival companies work together to take on the biggest challenge in Ice Road Truckers history, pulling a cat train across the frozen Hudson Bay, but the untested ice shatters under the weight of the heavy haul.

Snow leopard comes from Halifax; an elk has a broken leg.

Baby gorilla is nurtured; Rebeca is trained.

The two rival companies work together to take on the biggest challenge in Ice Road Truckers history, pulling a cat train across the frozen Hudson Bay, but the untested ice shatters under the weight of the heavy haul.

Snow leopard comes from Halifax; an elk has a broken leg.

Baby gorilla is nurtured; Rebeca is trained.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs at Critter Fixer help a greyhound suffering from seizures and a kitten in need.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs at Critter Fixer help a greyhound suffering from seizures and a kitten in need.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

The docs help fifteen celebrity chihuahuas and a duckling.

Lisa and Todd struggle to complete their daring joint venture across the frozen Hudson Bay; Darrell braves the most torn up trail remaining on the winter roads; Art must face the last open ice crossing.

The baby gorilla goes back to holding; Zoofari debut; released fruit bat.

A camel's birthday celebration; Sumatran tiger; a seal fights for its life.

Lisa and Todd struggle to complete their daring joint venture across the frozen Hudson Bay; Darrell braves the most torn up trail remaining on the winter roads; Art must face the last open ice crossing.

The baby gorilla goes back to holding; Zoofari debut; released fruit bat.

A camel's birthday celebration; Sumatran tiger; a seal fights for its life.

Evidence reveals who really killed Rasputin; curators hide treasures from Hitler.

Ranking history's 10 most dramatic global disasters.

Ten of history's worst maritime disasters at sea.

Towers, bridges, cranes: ranking history's 10 most dramatic collapses.

When a dam fails, catastrophe follows; history's 10 worst dam failures.

Exploring various catastrophies that has happened in mankind's quest to conquer space, from the Apollo 1 tragedy to the Challenger and the Columbia disasters.

In motorsports, tiny mistakes cause disaster; exploring 10 crashes.

Trains, planes, and ships collide; exploring ten global collisions.

Earhart, Everest and the Lost City of Z; uncovering the causes behind the top 10 tragic expeditions in history.

Across the globe lies unseen but widely known threats that can change the world as people know it, from the Yellowstone Supervolcano, the San Andreas fault to nuclear armageddon, climate change, artificial intelligence and global pandemics.

An investigation into abuse and missing children at an Indian residential school sparks a reckoning on the nearby Sugarcane Reserve.

Secrets that unravel Dr. Zimbardo's official story come to light.

An investigation into abuse and missing children at an Indian residential school sparks a reckoning on the nearby Sugarcane Reserve.

Secrets that unravel Dr. Zimbardo's official story come to light.

Ten of history's worst maritime disasters at sea.

Towers, bridges, cranes: ranking history's 10 most dramatic collapses.

When a dam fails, catastrophe follows; history's 10 worst dam failures.

Exploring various catastrophies that has happened in mankind's quest to conquer space, from the Apollo 1 tragedy to the Challenger and the Columbia disasters.

Two French festival-goers may have to say au revoir to their travel plans; at the Port Huron border, routine questions reveal a traveler has a long criminal history; in San Francisco, a traveler with boring plans comes under heavy scrutiny.

Officers question a man from Texas who arrives with his hunting equipment.

Two travelers on a world tour are questioned about their packs, plans and partygoing; at Port Huron, a woman hoping to meet her boyfriend for the first time is scrutinized over the contents in her car.

A Dutch woman with a lot of luggage claims she's on a four-day holiday; a Chinese parcel contains a shocking surprise; actor Corey Feldman shows up.

Joe loses it after a screw-up; Devon's job offer; a Brit and his dog start a new life.

Glass brought light into homes and put the world into focus; people use glass to protect ourselves, cure disease, and create artistic masterpieces.

Greek ships fight off invaders; Alexander the Great wears cloth armor; philosopher Plato indulges in extracurricular activities; an ancient gadget foretells the future.

Two French festival-goers may have to say au revoir to their travel plans; at the Port Huron border, routine questions reveal a traveler has a long criminal history; in San Francisco, a traveler with boring plans comes under heavy scrutiny.

Officers question a man from Texas who arrives with his hunting equipment.

Two travelers on a world tour are questioned about their packs, plans and partygoing; at Port Huron, a woman hoping to meet her boyfriend for the first time is scrutinized over the contents in her car.

A Dutch woman with a lot of luggage claims she's on a four-day holiday; a Chinese parcel contains a shocking surprise; actor Corey Feldman shows up.

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

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

HSI surprises coke smugglers mid-handoff; CBP finds cash and ketamine.

A mom with kids in tow smuggles coke; AMO shoots out a drug boat's motor.

HSI runs down a drug smuggler in a parking lot; CBP finds ancient artifacts.

CBP finds $200k of weed in luggage; HSI disrupts a Colombian counterfeit ring.

Features HSI running multiple undercover drug deals; CBP discovers coke hidden in oatmeal.

HSI tracks shipment of 246kg of cocaine; CBP seizes illicit ammo and cash.

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

Port Protection's canine community takes center stage.

HSI tracks shipment of 246kg of cocaine; CBP seizes illicit ammo and cash.

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

Port Protection's canine community takes center stage.

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

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

HSI surprises coke smugglers mid-handoff; CBP finds cash and ketamine.

A mom with kids in tow smuggles coke; AMO shoots out a drug boat's motor.

In Boston, CPB stick their necks out to ask about a bottle of ostrich oil; in Detroit, a Canadian law student must explain why her car smells like marijuana.

A dentist from Kiev hopes for an extended stay in the U.S. after fleeing war in her home country; at the Detroit Border, a case of mistaken identity causes alarm; in Chicago, a metaphysical healer wishes a CBP officer good vibes.

A dentist from Kiev hopes for an extended stay in the U.S. after fleeing war in her home country; a traveler headed to Vegas points to a friend as the source of the extra cash he's carrying.

A Canadian landscaper forgets to tell CBP about his imminent flight; a trucker's day goes sideways when he makes a wrong turn and ends up at the border; at Chicago O'Hare a traveler is irate when he's taken to secondary.

Joe's flight is suspended; an unexpected injury; a risky cross-Canada journey to Turkey.

The fundamental creation of the wheel helps shape the human experience, but if the wheel suddenly stopped working and society lost the greatest, game-changing accomplishments made using wheel technology, the world would be vastly different.

Stories found within the walls of the Royal Palace of Madrid include a swordsman who bested 17 challengers, a clock powered by witchcraft, and a 20th-century king who outsmarted a fascist.

In Boston, CPB stick their necks out to ask about a bottle of ostrich oil; in Detroit, a Canadian law student must explain why her car smells like marijuana.

A dentist from Kiev hopes for an extended stay in the U.S. after fleeing war in her home country; at the Detroit Border, a case of mistaken identity causes alarm; in Chicago, a metaphysical healer wishes a CBP officer good vibes.

A dentist from Kiev hopes for an extended stay in the U.S. after fleeing war in her home country; a traveler headed to Vegas points to a friend as the source of the extra cash he's carrying.

A Canadian landscaper forgets to tell CBP about his imminent flight; a trucker's day goes sideways when he makes a wrong turn and ends up at the border; at Chicago O'Hare a traveler is irate when he's taken to secondary.

The trafficking of human remains yields billions of dollars globally and remains clandestine; Mariana's investigation reveals the vulnerability of anyone to human remains trafficking.

Mariana heads to Mexico to investigate the billion-dollar business of people-smuggling to the U.S., a system fueled by cartels and corruption.

Mariana goes inside the world of contract killers.

Mariana delves into a new scheme called sextortion, where compromising photos are used to extort victims; while searching for the scammer who targeted a young American, she uncovers a scam culture even more terrifying than she had imagined.

Mariana investigates a scam that tricks seniors into becoming drug mules.

Mariana's investigation into how gold mining is funding terrorism gets interrupted by a military coup that strands the team in Niger.

Mariana reveals the most intense and unexpected moments from Trafficked.

An inside look into "Trafficked" and the world's shadow economy.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

Oklahomans and the nation seek justice as the bomber awaits his fate.

An inside look into "Trafficked" and the world's shadow economy.

In 1944 the Allied invasion of Nazi-occupied Europe brings the hope of freedom and the devastation of war to the people of France.

Oklahomans and the nation seek justice as the bomber awaits his fate.

The trafficking of human remains yields billions of dollars globally and remains clandestine; Mariana's investigation reveals the vulnerability of anyone to human remains trafficking.

Mariana heads to Mexico to investigate the billion-dollar business of people-smuggling to the U.S., a system fueled by cartels and corruption.

Mariana goes inside the world of contract killers.

Mariana delves into a new scheme called sextortion, where compromising photos are used to extort victims; while searching for the scammer who targeted a young American, she uncovers a scam culture even more terrifying than she had imagined.

A traveler with bags full of counterfeit merchandise isn't bothered by CBP's probing questions; a woman crossing the border finds herself in a salty situation; a journalist hoping to visit the US on vacation is interviewed about his work prospects.

Two women returning from a tropical vacation are questioned; at JFK cargo facility, a bounty of gold jewelry is apprehended when the manifesto seems to sell its value short; Baily the dog has a big day.

A traveler headed to Vegas rolls the dice on getting into the US for a vacation; a family immigrating from Vietnam hope their enthusiasm translates; at JFK cargo facility, boxes of pancake mix fall flat.

A man from Mexico is questioned when it is indicated his vacation plans may include a work component; at JFK cargo facility a shipment of live moth pupas is put under the microscope; in San Francisco, an angry traveler points a finger at CBP.

The Turkey waterbomber crew is rattled; a North Atlantic crossing; AJ gets married.

Exploring what the world would be like if salt and all of its vital contributions, from food preservation to enabling industry, were to suddenly disappear.

The Jewish origins of Mr. Spock; creating Cleopatra's perfume; new view of the Crucifixion; the tomb of Mary.

A traveler with bags full of counterfeit merchandise isn't bothered by CBP's probing questions; a woman crossing the border finds herself in a salty situation; a journalist hoping to visit the US on vacation is interviewed about his work prospects.

Two women returning from a tropical vacation are questioned; at JFK cargo facility, a bounty of gold jewelry is apprehended when the manifesto seems to sell its value short; Baily the dog has a big day.

A traveler headed to Vegas rolls the dice on getting into the US for a vacation; a family immigrating from Vietnam hope their enthusiasm translates; at JFK cargo facility, boxes of pancake mix fall flat.

A man from Mexico is questioned when it is indicated his vacation plans may include a work component; at JFK cargo facility a shipment of live moth pupas is put under the microscope; in San Francisco, an angry traveler points a finger at CBP.

Alaskans confront brutal elements while on the hunt for critical resources.

Alaskans engineer inventive solutions for survival in the harsh elements.

With surprises around every bend, Alaskans must be ready for anything.

Alaskans brave the deadly cold of winter to protect their way of life.

The next generation must be resourceful tackling late winter challenges.

The next generation of Alaskans risk it all to ensure their survival.

Alaskans must push their boundaries in hopes of a prosperous future.