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.

Witness the 10 worst sports crashes from the high-risk world of sport racing.

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.

Thord Paulsen and his colleagues must fight against snow and icy winds as they rescue cars and trucks on Norway's slippery mountain roads.

Racing to a rescue, rookie Terje runs into trouble when he crashes Thord's tow-truck; Thord risks it all to rescue a garbage truck.

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

Thord Paulsen and his colleagues must fight against snow and icy winds as they rescue cars and trucks on Norway's slippery mountain roads.

Racing to a rescue, rookie Terje runs into trouble when he crashes Thord's tow-truck; Thord risks it all to rescue a garbage truck.

Ranking history's 10 most dramatic global disasters.

Ten of history's worst maritime disasters at sea.

Explore the 10 most dramatic structural collapses in history, from bridges to buildings.

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

A woman with protruding pants attracts the attention of Customs; a passenger would rather go to court than pay a fine.

A woman tries to smuggle an expensive gift into Australia; a package from Hong Kong looks suspicious.

A fidgety passenger has officers on high alert because of what's found under his home's floorboards.

A musician claims to have special powers that help her see the future.

The Dawson City Fire Department struggles in the absence of their chief; Ray is stuck in deep snow on a remote backroad and Colin races against an incoming storm to keep the travelling public safe.

Rookie Steph Custance tries to complete the first ice road mission of her career; Alex Debogorski runs into a road block as temperatures soar; Art Burke attempts to deliver to a new community; Darrell Ward braves an unregulated winter road.

Ken's wife gets some surprising news when she arrives for a visit; Big Al has trouble with his excavator; Karl's season is threatened by permafrost.

A woman with protruding pants attracts the attention of Customs; a passenger would rather go to court than pay a fine.

A woman tries to smuggle an expensive gift into Australia; a package from Hong Kong looks suspicious.

A fidgety passenger has officers on high alert because of what's found under his home's floorboards.

A musician claims to have special powers that help her see the future.

Cesar rehabs an overprotective Great Dane mix.

A Chihuahua poses a threat to a pet mom's romantic life.

Cesar finds a dog to help a woman heal; he helps a territorial Maltipom.

Cesar rehabs two aggressive German Shepherds, and one very loud Min Pin Mix.

Cesar helps a rottweiler on house arrest and a Pom Terrier to socialize.

A cattle dog protects her fearful owner, and a family finds a perfect pal.

Cesar rehabs a boxer with an aggressive obsession with attacking handbags.

Cesar finds a match for a young couple and helps with separation anxiety.

A pride of lions corners a leopard; a hippo hurls a young impala into the air; two hyenas try to drown each other; an aardvark runs for its life from a brown hyena.

A challenging farm call turns into an emergency for one of the team.

Cesar finds a match for a young couple and helps with separation anxiety.

A pride of lions corners a leopard; a hippo hurls a young impala into the air; two hyenas try to drown each other; an aardvark runs for its life from a brown hyena.

A challenging farm call turns into an emergency for one of the team.

Cesar rehabs an overprotective Great Dane mix.

A Chihuahua poses a threat to a pet mom's romantic life.

Cesar finds a dog to help a woman heal; he helps a territorial Maltipom.

Cesar rehabs two aggressive German Shepherds, and one very loud Min Pin Mix.

A father and son from China have four suitcases full of undeclared food; an immigration raid targets illegal workers.

An American tourist is caught renting by the hour, but insists she needs to meet up with her boyfriend.

At O'Hare International, a returning American's bananas cause a slip-up in secondary; a mother covers for her kid at Detroit's Ambassador Bridge; a car search is brought to a head in Washington State.

Officers search for a fugitive in Washington State; a cook is questioned on his way to Las Vegas; a canine flags several packages in Chicago; x-rays discover anomalies in Port Huron cargo.

The Yukon's Civil Air Search and Rescue Association battles flying conditions in their search for a historic missing plane that had 44 people on board; the Dawson City Fire Department responds to a 911 call that puts the town in jeopardy.

Darrell Ward faces a trail known as "the obstacle course"; Todd Dewey strives to clear a melting ice bridge; Alex Debogorski hauls an oversized fuel tank; Art Burke stumbles onto an ice crossing in the middle of the night.

Dennis' hunt for gold proves unsuccessful; Ken breaks a machine in his haste to sluice; Karl's season is threatened by floods.

A father and son from China have four suitcases full of undeclared food; an immigration raid targets illegal workers.

An American tourist is caught renting by the hour, but insists she needs to meet up with her boyfriend.

At O'Hare International, a returning American's bananas cause a slip-up in secondary; a mother covers for her kid at Detroit's Ambassador Bridge; a car search is brought to a head in Washington State.

Officers search for a fugitive in Washington State; a cook is questioned on his way to Las Vegas; a canine flags several packages in Chicago; x-rays discover anomalies in Port Huron cargo.

Just weeks before the war ends, USS Indianapolis is violently sunk; hundreds of men are lost at sea as they fight off exposure and shark attacks; it is the worst disaster at sea in U.S. Naval history.

Undersea explorers aboard the research vessel Petrel detect a wreck off the coast of the Philippines that fits the profile of an American destroyer.

Hours after emerging victorious in the first carrier-to-carrier battle of World War II, the USS Lexington erupts in flames due to enemy fire; after 80 years, Petrel hopes to spot the wreck and the planes that went down with the ship.

The Petrel team searches for the American aircraft carrier USS Hornet; the ship's life is cut short when the Hornet sails into a hornet's nest of Japanese ships.

What happened aboard the USS Juneau; five brothers are lost, but not all perish when the ship goes down; at least one brother is among scores of men stranded at sea for eight days.

In one night, over 1000 Allied sailors perish when four cruisers go down in flames; Petrel searches for the cruisers in a graveyard littered with ships.

Rob Kraft hunts for Musashi, the biggest battleship ever built and considered to be unsinkable by the Japanese.

Research vessel Petrel picks up what they believe to be the debris trail of the USS Johnston; a manned submersible is deployed to potentially put eyes on the deepest shipwreck in the world.

A 48-hour sting leads HSI to a stash house; CBP finds drugs in gas tanks.

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

Research vessel Petrel picks up what they believe to be the debris trail of the USS Johnston; a manned submersible is deployed to potentially put eyes on the deepest shipwreck in the world.

A 48-hour sting leads HSI to a stash house; CBP finds drugs in gas tanks.

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

Just weeks before the war ends, USS Indianapolis is violently sunk; hundreds of men are lost at sea as they fight off exposure and shark attacks; it is the worst disaster at sea in U.S. Naval history.

Undersea explorers aboard the research vessel Petrel detect a wreck off the coast of the Philippines that fits the profile of an American destroyer.

Hours after emerging victorious in the first carrier-to-carrier battle of World War II, the USS Lexington erupts in flames due to enemy fire; after 80 years, Petrel hopes to spot the wreck and the planes that went down with the ship.

The Petrel team searches for the American aircraft carrier USS Hornet; the ship's life is cut short when the Hornet sails into a hornet's nest of Japanese ships.

On her first solo trip, Steph Custance braves one of the longest ice crossings on the map; Darrell Ward attempts a triple delivery in a single day; an engine fire stops Lisa Kelly in her tracks; Todd Dewey celebrates his birthday stuck on a road.

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

An officer's expertise in body language pays off; a German rock band in Detroit; a hole in a traveler's story.

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

Dr. Oakley treats a sheep with a large growth and the eye of a tiny owl.

Dr. Oakley treats a pair of neglected dogs, and Willow rescues feral cats.

Dr. Oakley lassos a calf, shears an overgrown sheep and treats a dog with an eye injury.

Dr. Oakley treats an emaciated chicken and a dog with a lacerated paw.

Dr. Oakley treats a cherished breeding bull and a cat with a worrying lump.

Dr. Oakley vaccinates a jet-setting chihuahua, tries to outsmart a shifty coyote and meets a cow with an unusual growth.

Dr. Oakley treats a baby elk with a limp, performs a dental on a musk ox and gives a roadside pedicure to a pig.

Dr. Oakley transports baby bison to their new home and treats a pair of therapy reindeer that help a veteran with PTSD.

Dr. Oakley treats a pair of debilitated chickens and a Highland cow that loves to give hugs; a reindeer farm hopes to turn its luck around.

Ahead of Sierra's departure for vet school, the team treats an emu, a dog with a bulging eye and a reindeer with a cracked antler.

It's all hands on deck as Dr. Michelle Oakley treats canines of all kinds.

In Alaska, winter conditions are tough, but Dr. Michelle Oakley is tougher.

Making house calls in the far reaches of Northern Canada is a daunting task in the least, considering the houses may be separated by hundreds of miles. That challenge doesn't stop Dr. Michelle Oakley from performing her many duties as a veterinarian in one of the most rugged environments on Earth. In addition to running an animal clinic out of her home in Haines Junction, Yukon - where she lives with husband Shane and their three daughters - Dr. Oakley also operates a satellite clinic 150 miles away and is the on-call vet for the Yukon Wildlife Preserve, which is about 100 miles from Haines Junction. She also makes house calls, sometimes driving for long stretches through desolate wilderness to check on a patient. This series documents how Dr. Oakley juggles being a full-time vet, wife and mom, and does so with a sense of humor and devotion.

It's all hands on deck as Dr. Michelle Oakley treats canines of all kinds.

In Alaska, winter conditions are tough, but Dr. Michelle Oakley is tougher.

Making house calls in the far reaches of Northern Canada is a daunting task in the least, considering the houses may be separated by hundreds of miles. That challenge doesn't stop Dr. Michelle Oakley from performing her many duties as a veterinarian in one of the most rugged environments on Earth. In addition to running an animal clinic out of her home in Haines Junction, Yukon - where she lives with husband Shane and their three daughters - Dr. Oakley also operates a satellite clinic 150 miles away and is the on-call vet for the Yukon Wildlife Preserve, which is about 100 miles from Haines Junction. She also makes house calls, sometimes driving for long stretches through desolate wilderness to check on a patient. This series documents how Dr. Oakley juggles being a full-time vet, wife and mom, and does so with a sense of humor and devotion.

Dr. Oakley treats a sheep with a large growth and the eye of a tiny owl.

Dr. Oakley treats a pair of neglected dogs, and Willow rescues feral cats.

Dr. Oakley lassos a calf, shears an overgrown sheep and treats a dog with an eye injury.

Dr. Oakley treats an emaciated chicken and a dog with a lacerated paw.

Todd Dewey must fix his truck or find himself stranded a hundred miles from the nearest town; Alex Debogorski confronts a creek in the middle of the road; Art Burke receives bad news; Lisa Kelly battles an ice crossing unlike any she's seen.

Ken takes a roll in his bulldozer; beavers threaten Big Al's operation; Karl's loader springs a leak.

Todd Dewey must fix his truck or find himself stranded a hundred miles from the nearest town; Alex Debogorski confronts a creek in the middle of the road; Art Burke receives bad news; Lisa Kelly battles an ice crossing unlike any she's seen.

Ken takes a roll in his bulldozer; beavers threaten Big Al's operation; Karl's loader springs a leak.

The Dawson City Fire Department races to protect the town from devastating flash floods; officers track down a dangerous and destructive bison herd, have a run-in with a bear and set up a sting to catch a suspected serial over-fisher.

Amateur sleuths discover famous serial killer expert is not what he seems.

The investigation of Bourgoin unearths something darker beneath his fame.

The mysteries of Bourgoin's past reveal the genesis of his dark obsessions.

The team tackles a difficult interception of drug traffickers.

The Coastguards come across an unexpected find at sea.

The Search and Rescue helicopter searches for a missing girl on Bonaire.

The Coast Guard traces smugglers' tracks and stumbles upon a remarkable discovery; a Coast Guard plane searches for a missing fishermen.

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

The Royal Navy orchestrates a spectacular drug bust, and the Coastguard spots suspicious people in the marina, which triggers an investigation.

Exploring and investigating the Amazon's diverse ecosystems and species, from mangrove forests to pink dolphins and Andean bears, revealing urgent challenges and hopeful solutions for conserving this vital freshwater resource.

Four kids survive a plane crash and endure 40 days in the Colombian jungle.

Exploring and investigating the Amazon's diverse ecosystems and species, from mangrove forests to pink dolphins and Andean bears, revealing urgent challenges and hopeful solutions for conserving this vital freshwater resource.

Four kids survive a plane crash and endure 40 days in the Colombian jungle.

Amateur sleuths discover famous serial killer expert is not what he seems.

The investigation of Bourgoin unearths something darker beneath his fame.

The mysteries of Bourgoin's past reveal the genesis of his dark obsessions.

The team tackles a difficult interception of drug traffickers.

A Chicago canine unit discovers smugglers; officers enter a high-speed chase in Port Huron; a traveler triggers radiation alarms; bullets in Blaine, Washington.

In Detroit airport, a family travelling from the UK, may need to corroborate their story. Also a tip from authorities, puts officers at the Chicago International Mail facility on high alert.

Border officers stop a young British visitor meeting an American cyber pal at Detroit Metro Airport, and a Chinese traveller is caught using his mobile phone in a secondary inspection in Chicago.

A strong odor leads to a secondary inspection for two Americans in Port Huron; an officer finds gold at Chicago's O'Hare Airport.

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.

Conservation Officer Logan has a close call while investigating a case of poaching; an aggressive grizzly bear ransacks a remote trapper's cabin.

The guys look through a hangar-sized collection; Henry's retro service station.

A Chicago canine unit discovers smugglers; officers enter a high-speed chase in Port Huron; a traveler triggers radiation alarms; bullets in Blaine, Washington.

In Detroit airport, a family travelling from the UK, may need to corroborate their story. Also a tip from authorities, puts officers at the Chicago International Mail facility on high alert.

Border officers stop a young British visitor meeting an American cyber pal at Detroit Metro Airport, and a Chinese traveller is caught using his mobile phone in a secondary inspection in Chicago.

A strong odor leads to a secondary inspection for two Americans in Port Huron; an officer finds gold at Chicago's O'Hare Airport.

Homeland Security Investigations surprises coke smugglers mid-handoff; CBP seizes shipments of money, drugs and ketamine.

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

HSI chase down a drug smuggler during a cocaine transfer at a parking lot; CBP discovers gold coins and ancient artifacts in mail parcels.

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.

Homeland Security Investigations Miami uncovers a mysterious new drug; CBP discovers invasive African snails in mail.

CBP uncovers smuggled human remains; Border Patrol stops migrant smugglers.

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

Darkness conceals illegal tobacco traffickers with a surprising twist.

CBP uncovers smuggled human remains; Border Patrol stops migrant smugglers.

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

Darkness conceals illegal tobacco traffickers with a surprising twist.

Homeland Security Investigations surprises coke smugglers mid-handoff; CBP seizes shipments of money, drugs and ketamine.

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

HSI chase down a drug smuggler during a cocaine transfer at a parking lot; CBP discovers gold coins and ancient artifacts in mail parcels.

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

Authorities find a traveler's pot pipe in Blaine; in Port Huron, a traveler's past may come back to haunt him.

A Canadian must deliver the truth before visiting his wife and child; an officer finds a skull at the JFK mail facility.

A Ukrainian traveler may split after divorcing her husband; a suspicious package is sent to the lab for narcotics testing.

A Canadian is interviewed after officers find pictures of pot plants on his phone; a canine team detects marijuana on a couple.

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.

When a bear charges a group of remote researchers, a Conservation Officer deals with the potentially life-threatening situation, and Ray takes on a challenging recovery that bested two tow companies before him.

A bell possibly from the train crash that killed Jumbo the Elephant in the late 1800s.

Authorities find a traveler's pot pipe in Blaine; in Port Huron, a traveler's past may come back to haunt him.

A Canadian must deliver the truth before visiting his wife and child; an officer finds a skull at the JFK mail facility.

A Ukrainian traveler may split after divorcing her husband; a suspicious package is sent to the lab for narcotics testing.

A Canadian is interviewed after officers find pictures of pot plants on his phone; a canine team detects marijuana on a couple.

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

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

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

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

Mariana investigates the explosive world of armored car heists.

Mariana investigates the growing influence of heavily armed militias.

Mariana investigates the dirty business of bogus addiction treatment.

Mariana investigates a wave of anti-LGBTQ+ violence and uncovers a well-funded global network pushing an anti-gay agenda around the world.

Curious minds discover how the British Midland Flight 92 crashes on a freeway embankment near the village of Kegworth, resulting in tragedy.

Mariana investigates the deadly world of illegal street racing.

Mariana investigates a wave of anti-LGBTQ+ violence and uncovers a well-funded global network pushing an anti-gay agenda around the world.

Curious minds discover how the British Midland Flight 92 crashes on a freeway embankment near the village of Kegworth, resulting in tragedy.

Mariana investigates the deadly world of illegal street racing.

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

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

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

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

A conductor arrives to lead a symphony orchestra; a drug dealer tries to enter the United States.

CBP worries a man from Nicaragua may not leave the U.S.; a traveler's plan to start an e-vape business may go up in smoke.

A traveler must make a difficult decision; a bus passenger is busted with bud in her bag.

Officers find cocaine inside a Caribbean cocktail; officers sift through packages of pills.

The world is literally buzzing with insects; bees, spiders and insects of all shapes and sizes touch every aspect of life, they're the essential workers that pollinate food, clean up the dead and are an integral part of the ecosystem.

Frigid temperatures wreak havoc on Dawson City, putting the fire department in danger; an avalanche shuts down the Klondike Highway and a tow operator races to find a driver who has plunged off-road and into an icy river.

The guys get a sneak peek of an auction with antique cars, retro gas pumps and collectibles.

A conductor arrives to lead a symphony orchestra; a drug dealer tries to enter the United States.

CBP worries a man from Nicaragua may not leave the U.S.; a traveler's plan to start an e-vape business may go up in smoke.

A traveler must make a difficult decision; a bus passenger is busted with bud in her bag.

Officers find cocaine inside a Caribbean cocktail; officers sift through packages of pills.

The work never ends as Alaskans prepare for another brutally harsh winter.

It's a hierarchy of predator versus prey, for all who live in Alaska.

The next generation is tireless in the hunt to secure Alaska's resources.

Alaska provides, but the next generation must be able to reap its rewards.

Alaskans must master trapping, fishing, construction and mechanical repair in order to survive.

Alaskans work hard to prepare for winter's brutally harsh elements.

Alaska's next generation must respect the land and its inhabitants to survive.

The next generation of remote Alaskans must secure food in bleak winter.

Thord Paulsen and his colleagues must fight against snow and icy winds as they rescue cars and trucks on Norway's slippery mountain roads.

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.

The next generation of remote Alaskans must secure food in bleak winter.

Thord Paulsen and his colleagues must fight against snow and icy winds as they rescue cars and trucks on Norway's slippery mountain roads.

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.

The work never ends as Alaskans prepare for another brutally harsh winter.

It's a hierarchy of predator versus prey, for all who live in Alaska.

The next generation is tireless in the hunt to secure Alaska's resources.

Alaska provides, but the next generation must be able to reap its rewards.

Real estate entrepreneurs are questioned; a traveler's investments in the U.S. raises alarms; suspicious Mexican souvenirs.

A traveler is caught driving without a license; a U.S. resident returns from the Dominican Republic.

Human bones are found inside luggage; a pair fails to declare thousands of dollars in jewelry; a mysterious powder is masked by beauty products.

A traveler is caught with injections; officers smoke out marijuana residue; a mom may end up in jail due to a wrong turn.

Examining the history of cats and dogs and how they have been helpful companions to humankind all over the globe.

Multiple 911 calls push Dawson City to the brink as they battle to save a family home and a historic building, while snowstorms pummel Whitehorse, causing chaos and forcing a dangerous backcountry helicopter rescue mission.

A showroom full of antique cars, jukeboxes and tin trucks in central Alberta.

Real estate entrepreneurs are questioned; a traveler's investments in the U.S. raises alarms; suspicious Mexican souvenirs.

A traveler is caught driving without a license; a U.S. resident returns from the Dominican Republic.

Human bones are found inside luggage; a pair fails to declare thousands of dollars in jewelry; a mysterious powder is masked by beauty products.

A traveler is caught with injections; officers smoke out marijuana residue; a mom may end up in jail due to a wrong turn.

A Chihuahuas labor stalls, and a curious cat gets hooked.

A family tradition for the generations, it's time for an incredible fair.

A new addition; Doc and Diane welcome a Friesian filly to the family.

Dr. Pol and his team handle animal emergencies in Central Michigan.

A cow requires the doctor's assistance.

Dr. Pol needs to take blood samples from a flock of sheep to test for Ovine Progressive Pneumonia, a progressive, incurable and highly contagious disease.

Dr. Pol examines a goat that has been refusing to eat.

An ice storm shuts down the clinic, and newborn labs are melting hearts.

Golden eagles, otters, wild boars and cormorants struggle to survive the harsh winter in the land of the Iberian lynx.

Doctors from Pol Veterinary Services rush to help a distressed cow and her calf.

An ice storm shuts down the clinic, and newborn labs are melting hearts.

Golden eagles, otters, wild boars and cormorants struggle to survive the harsh winter in the land of the Iberian lynx.

Doctors from Pol Veterinary Services rush to help a distressed cow and her calf.

A Chihuahuas labor stalls, and a curious cat gets hooked.

A family tradition for the generations, it's time for an incredible fair.

A new addition; Doc and Diane welcome a Friesian filly to the family.

Dr. Pol and his team handle animal emergencies in Central Michigan.

A one-way ticket raises red flags; a traveler is caught with undeclared meat; officers find a loaded gun and live crab.

Officers find white powder in tea sacks; pills marked ICE are frozen; some furry foreigners arrive to spread good will.

A traveler is caught with cocaine-filled pen caps; a long stay alerts CBP; a probation-breaking welder feels the heat.

A fake ID is comes to light at the border; a young traveler's stories don't jibe; CBP hounds sniff out forbidden food.

Gold, the shiny precious metal that has been cherished through all recorded time, is vital to the modern world; if gold was suddenly stripped away, the technological and cultural world would be left reeling.

As winter tightens its icy grip, the small, isolated community of West Dawson finds itself completely cut off from emergency services. Alone, Ray faces a string of dangerous solo vehicle retrieval missions on a storm-battered highway.

The guys haggle with a teenage girl over classic old Canadian canoes.

A one-way ticket raises red flags; a traveler is caught with undeclared meat; officers find a loaded gun and live crab.

Officers find white powder in tea sacks; pills marked ICE are frozen; some furry foreigners arrive to spread good will.

A traveler is caught with cocaine-filled pen caps; a long stay alerts CBP; a probation-breaking welder feels the heat.

A fake ID is comes to light at the border; a young traveler's stories don't jibe; CBP hounds sniff out forbidden food.

In the shadow of the Great Pyramid, archaeologists unearth a royal palace.

Archeologists excavate an unexplored burial chamber inside a pyramid.

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

Archaeologists explore hidden tombs and find spectacular mummies.

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

Archaeologists investigate Egypt's last legendary Queen, Cleopatra.

Archaeologists investigate the mysterious mega tombs of a forgotten era.

Experts investigate a forgotten valley hiding a hoard of royal mummies.

In this enhanced episode, CBP seizes looted Ukrainian antiques.

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

Experts investigate a forgotten valley hiding a hoard of royal mummies.

In this enhanced episode, CBP seizes looted Ukrainian antiques.

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

In the shadow of the Great Pyramid, archaeologists unearth a royal palace.

Archeologists excavate an unexplored burial chamber inside a pyramid.

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

Archaeologists explore hidden tombs and find spectacular mummies.

As the end of the season nears, Mark Kohaykewych makes a deal with rivals Darrell Ward and Lisa Kelly to join forces for a four-truck convoy; Alex Debogorski must complete one of the longest trails; Art Burke's truck gives out on the ice.

The Pickers load up on Newfoundland collectibles.

Officers find a stash of luxury knockoffs; a drag race fan slows his roll; CBP catches a wanted duo.

The Pickers load up on Newfoundland collectibles.

The vets tackle a twisted calving, a flock of ducks and a pack of rats.

Pets in a jam with quills, fishhooks, and string go to PVS to get unstuck.

There's no time to rest with emergency calvings, rowdy pups, and ailing felines.

A new Pol family member is born.

A blocked bearded dragon; a feisty cow to dodge; a surprise for Tater.

A puppy tornado touches down at PVS; a cute kitten is rescued.

A snake with lumps, a cat with a sky-high temperature, and a goose on the loose.

Dr. Pol has the great honor of escorting U.S. veterans to Washington.

Dr. Pol and Diane celebrate a milestone that's been decades in the making.