National Geographic (Canada)

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

Honesty is the best policy, even for ex-cons; A student gets the dish on declaring items properly.

Airport officers let the khat out of the bag; A repeat offender must prove he's learned his lesson.

A traveler has suitcases full of surprises; A Canadian couple returns home with a man-eating beast; two Americans tow their friend's boat to Alaska.

The dogs are brought in to assist officers; A traveler goes gaga at Vancouver International Airport.

The team tackles a difficult interception of drug traffickers.

The crew of a Metal Shark investigates a tip about the possible dealing of laughing gas on a party boat; an abandoned dinghy with possible human remains is located.

The crew of the DASH-8 aircraft face a challenging rescue operation of 14 drowning people from a sunken oil tanker; in Aruba, the Coast Guard searches for drugs on a local fisherman's boat.

A Coastguard naval vessel is involved in the interception of a drug boat; the crew of the helicopter is called out to perform a dangerous rescue.

A naval vessel is involved in two thrilling interceptions of drug boats; the helicopter crew attempts a rescue of a mysterious man at sea.

The interception of a drug boat by a Navy helicopter leads to a dangerous situation; the DASH-8 attempts to rescue two fishermen.

An NH-90 naval helicopter intercepts a fleeing drug boat; the Metal Shark crew attempts to save undocumented migrants from a sinking boat.

Residents of Port Protection use both brain and brawn to survive.

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.

Matt and Carl prepare for adventure; Oliver chases after deer.

Residents of Port Protection use both brain and brawn to survive.

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.

Matt and Carl prepare for adventure; Oliver chases after deer.

The team tackles a difficult interception of drug traffickers.

The crew of a Metal Shark investigates a tip about the possible dealing of laughing gas on a party boat; an abandoned dinghy with possible human remains is located.

The crew of the DASH-8 aircraft face a challenging rescue operation of 14 drowning people from a sunken oil tanker; in Aruba, the Coast Guard searches for drugs on a local fisherman's boat.

A Coastguard naval vessel is involved in the interception of a drug boat; the crew of the helicopter is called out to perform a dangerous rescue.

Officers question a nervous traveler; a trampoline installer hopes to avoid the bounce around; undeclared dogs from Hungary.

A chef with limited funds and no return ticket; serial numbers aren't piecing together in a gun shipment; a travel agent's last-minute Caribbean booking raises red flags; a boat owner fails to report to CBSA.

Officers get the dope on a traveler's rap sheet; A passenger is unsure of his luggage contents.

Suspicious x-rays; an MMA fighter's story; an RV search that reveals unusual weapons; a cross-border car sale.

Polar drivers Lisa, Art and Todd start on an epic journey up the longest seasonal winter road in the world; VP stays closer to home, traveling dangerous roads in a late attempt to boost their load count.

The early arrival of winter forces Ken on a dangerous drive for fuel; Karl deals with a frozen sluice plant, a broken vehicle, and other assorted troubles; Bernie loses his pay streak and a crew member.

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

Officers question a nervous traveler; a trampoline installer hopes to avoid the bounce around; undeclared dogs from Hungary.

A chef with limited funds and no return ticket; serial numbers aren't piecing together in a gun shipment; a travel agent's last-minute Caribbean booking raises red flags; a boat owner fails to report to CBSA.

Officers get the dope on a traveler's rap sheet; A passenger is unsure of his luggage contents.

Suspicious x-rays; an MMA fighter's story; an RV search that reveals unusual weapons; a cross-border car sale.

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 goes inside the dangerous, high-stakes world of illegal gambling to try and understand its allure, its growth and its dark side.

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

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.

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.

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.

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.

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 goes inside the dangerous, high-stakes world of illegal gambling to try and understand its allure, its growth and its dark side.

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

A businesswoman's personal items sound alarms; a cargo ship crew member who has been concealing in the ceiling; a puppeteer couple; an American seeking legal advice in Ontario.

Partygoers receive rave reviews at the Coutts crossing; officers delve into an international affair.

Cookies can be more trouble than treat; twins with matching beers take a wrong turn.

Officers make a stunning discovery; a tourist's papers hint at her true plans for coming to Canada.

Lisa has to decide help a competitor push further into the arctic unknown or go back to Polar headquarters with her teammates.

Ken uncovers a mother lode of gold after he changes the Beast's location; breakdowns threaten to bring an early end to Bernie's season; Big Al selects a final site for his sluice plant.

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

A businesswoman's personal items sound alarms; a cargo ship crew member who has been concealing in the ceiling; a puppeteer couple; an American seeking legal advice in Ontario.

Partygoers receive rave reviews at the Coutts crossing; officers delve into an international affair.

Cookies can be more trouble than treat; twins with matching beers take a wrong turn.

Officers make a stunning discovery; a tourist's papers hint at her true plans for coming to Canada.

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.

The team is in the crystal-clear waters of Bimini in the Bahamas to witness the incredible journey of the great hammerhead shark; as the team follows the shark's migration, they discover the secrets of how these animals navigate the vast ocean.

The team travels to the Dominican Republic in the Caribbean to reveal the greatest secrets in the lives of the North Atlantic humpback whale; they witness a mother defend her calf in the ultimate ocean battle with a pack of orcas.

The team is in the Azores to tag the sixgill shark and learn more about its nightly patterns hunting for food in the abyss; the team tags and retrieves valuable data, uncovering why this shark undertakes its epic journey from the depths at night.

In the Azores, the team follows the elusive sperm whales to their hunting grounds a mile beneath the surface, where they discover the secret lives of these deep-diving whales.

Learning how a population of bowhead whales, once hunted almost to extinction, is faring today; the team is the first to observe the feeding strategies of the deep-sea Greenland shark, an animal that can live for more than 400 years.

The team's mission is to figure out if Svalbard's polar bears are adapting to their environment; they face this giant of the Arctic Ocean and scale a glacier to learn how much time is left for one of the most critical habitats for polar bears.

A 40th-anniversary gift, $1,500 in cash and a stuffed jewelry box get lost.

The students start the dogfighting phase to learn how to attack.

The team's mission is to figure out if Svalbard's polar bears are adapting to their environment; they face this giant of the Arctic Ocean and scale a glacier to learn how much time is left for one of the most critical habitats for polar bears.

A 40th-anniversary gift, $1,500 in cash and a stuffed jewelry box get lost.

The students start the dogfighting phase to learn how to attack.

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.

The team is in the crystal-clear waters of Bimini in the Bahamas to witness the incredible journey of the great hammerhead shark; as the team follows the shark's migration, they discover the secrets of how these animals navigate the vast ocean.

The team travels to the Dominican Republic in the Caribbean to reveal the greatest secrets in the lives of the North Atlantic humpback whale; they witness a mother defend her calf in the ultimate ocean battle with a pack of orcas.

A senior has some unfriendly gear in his RV; a Canadian returning from Panama tells all.

An American is busted trying to catch a different kind of trip; officers help a tipsy traveler.

A heavy automobile container hints at trouble; A student's stash of food brings him discomfort.

A traveler returns with a surprise; Marine officers come upon an infested container.

Experts predict one of the shortest and warmest winters on record; as a result, companies risk financial ruin and communities face deprivation unless the drivers can deliver vital supplies before their window of opportunity slams shut.

Snow threatens to bury Ken's pay dirt; Karl ignores his father's advice; Big Al deals with failing equipment and unhappy workers as his first season comes to an end.

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

A senior has some unfriendly gear in his RV; a Canadian returning from Panama tells all.

An American is busted trying to catch a different kind of trip; officers help a tipsy traveler.

A heavy automobile container hints at trouble; A student's stash of food brings him discomfort.

A traveler returns with a surprise; Marine officers come upon an infested container.

Cesar works with a confused Goldendoodle and a fearful pet parent.

Cesar's rehab of two violent dogs threatening to kill each other continues.

Cesar finds a perfect dog for a single mom and helps a biting mini pinscher.

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.

For the first time in the park's history, Hartmann's mountain zebras arrive on the savanna at Disney's Animal Kingdom; babirusa pig Betty is introduced to babirusa pig Mentari, with the hope they will give the park its first-ever babirusa piglet.

Bertie Gregory searches for deadly wave-washing killer whales in Antarctica.

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

For the first time in the park's history, Hartmann's mountain zebras arrive on the savanna at Disney's Animal Kingdom; babirusa pig Betty is introduced to babirusa pig Mentari, with the hope they will give the park its first-ever babirusa piglet.

Bertie Gregory searches for deadly wave-washing killer whales in Antarctica.

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

Cesar works with a confused Goldendoodle and a fearful pet parent.

Cesar's rehab of two violent dogs threatening to kill each other continues.

Cesar finds a perfect dog for a single mom and helps a biting mini pinscher.

Cesar rehabs an overprotective Great Dane mix.

A student is failing his customs exam; officers prevent an artifact from going down in history.

The canine unit brings home the bacon; A traveler discovers she's got a friend in high places.

Strange beetles and butterflies are mailed into Canada that may carry disease.

A captain navigates troubled waters when he forgets to declare himself to the authorities.

Art Burke crashes his truck into a snowbank; Alex Debogorski makes his return and faces off with an untested crossing; Mark Kohaykewych tests out new driver Steph Custance; Lisa Kelly faces a monster incline; Darrell Ward runs into rival Todd Dewey.

Karl hopes to score 100 ounces of gold in one week; Ken must deal with an eager employee who keeps breaking equipment.

The guys are ready to drop big bucks on some treasures in British Columbia.

A student is failing his customs exam; officers prevent an artifact from going down in history.

The canine unit brings home the bacon; A traveler discovers she's got a friend in high places.

Strange beetles and butterflies are mailed into Canada that may carry disease.

A captain navigates troubled waters when he forgets to declare himself to the authorities.

Albert Lin explores Peru in search of the Lost City of the Cloud Warriors.

In remote Scotland, Albert Lin uses technology to hunt for the powerbase of the Picts, a tribe of barbarians who fought off the Roman Empire.

The Bible describes Nineveh as a wicked city of sin; finding if new discoveries in Iraq and Israel can shed light on the events behind this fearsome reputation.

New discoveries unlock the origins of the Bible's flood story.

Archaeologists discover evidence that sheds fresh light on historical influences from Egypt for the biblical tale of the Exodus.

Archaeologists discover new evidence in Iraq that sheds light on the historical influences of the Bible's Tower of Babel story.

Archaeologists make groundbreaking discoveries about the world of Solomon.

Many persons revile King Herod as one of the evil characters in the Bible; later historians coin him Herod "the Great.".

Is a bog body a murder?; can physics find illness?; who is on an Egyptian bust?

Jeff meets master monster-maker Phil Tippett before venturing on a monster hunt in Bigfoot country.

Wildlife activists Benhail Antao and Louise Remedios attempt to rescue two enormous Indian rock pythons that fell into a well.

Many persons revile King Herod as one of the evil characters in the Bible; later historians coin him Herod "the Great.".

Is a bog body a murder?; can physics find illness?; who is on an Egyptian bust?