A group of wild sea turtles needs medical attention before being released back into the sea; a rhino receives special treatment after cracking his horn; a zebra gives birth.

Powerful orca matriarchs pass down their unique hunting traditions to the next generation.

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

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

Cesar rehabs an overprotective Belgian Malinois and a puppy with no leadership.

A pet parent unknowingly trains his pit bull to attack cleaning objects.

Cesar rehabs a sound sensitive sheepdog and a confused golden retriever.

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; Bailey 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.

A couple and their girlfriend, with a loaded weapon on board, reach the border by mistake; in San Francisco, a man wandering aimlessly around the airport after his flight arrives is questioned about the contents of his luggage.

Harsh flying conditions threaten the search for a historic missing plane.

A sudden warm-up threatens to derail the ice road season; Art Burke faces scary and slick roads; Lisa Kelly is forced to ask her former boss for financial help; Alex Debogorski encounters a mystery man walking alone on an isolated winter road.

Big Al risks his health to break even; Nika's brother makes a surprising decision; Ken and Guillaume dig deep; Karl tries to top his goal.

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; Bailey 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.

A couple and their girlfriend, with a loaded weapon on board, reach the border by mistake; in San Francisco, a man wandering aimlessly around the airport after his flight arrives is questioned about the contents of his luggage.

Albert Lin explores Oman in search of the Legendary Land of Magan.

Albert Lin travels to the deserts of Sudan to search for a forgotten kingdom.

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.".

Hannah Fry visits Ireland, exploring her ancestry and examining the country's economic changes and ties to land and sea.

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

Hannah Fry visits Ireland, exploring her ancestry and examining the country's economic changes and ties to land and sea.

Albert Lin explores Oman in search of the Legendary Land of Magan.

Albert Lin travels to the deserts of Sudan to search for a forgotten kingdom.

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.

A blast of arctic air reopens the ice roads; Steph Custance falls victim to severe icing and winds up in a ditch; truckers set out to see if the newly reopened ice crossings are really ready for their big rigs.

Devastating flash floods threaten Dawson City.

A blast of arctic air reopens the ice roads; Steph Custance falls victim to severe icing and winds up in a ditch; truckers set out to see if the newly reopened ice crossings are really ready for their big rigs.

Devastating flash floods threaten Dawson City.

Dr. K's clinic fills up with mysterious cases, including a sugar glider who isn't eating.

A bunny is rushed in after a vicious attack; a pig arrives after eating rat poison.

A baby chicken is missing a wing after an attack; a hedgehog has a bulging eye.

Dr. K's staff has their hands full with a turtle hit by a car and a dehydrated pig.

A lemur is rushed into the clinic barely breathing, and a mouse gets an eye lift.

Dr. K helps Marshmallow, a dwarf hamster, who is having trouble breathing.

Dr. K treats Buddy, a baby skunk with a bloated belly.

A day of mystery unfolds at the clinic as a bearded dragon suffers a peculiar, hard-to-diagnose illness.

A variety of exotic and chaotic patients come in to the clinic.

Animal moms in need from reptiles to bunnies get a little help at Dr. K's.

The stakes are high as Dr. K's team works to save a prairie dog from a life-threatening infection; a potbellied pig is rushed in, and a rabbit needs surgery.

The team works to discover why a rabbit is wobbly after getting her head stuck in a cage.

Animals having an unlucky very bad day are lucky to find Dr. K's clinic.

The stakes are high as Dr. K's team works to save a prairie dog from a life-threatening infection; a potbellied pig is rushed in, and a rabbit needs surgery.

The team works to discover why a rabbit is wobbly after getting her head stuck in a cage.

Animals having an unlucky very bad day are lucky to find Dr. K's clinic.

Dr. K's staff has their hands full with a turtle hit by a car and a dehydrated pig.

A lemur is rushed into the clinic barely breathing, and a mouse gets an eye lift.

Dr. K helps Marshmallow, a dwarf hamster, who is having trouble breathing.

Dr. K treats Buddy, a baby skunk with a bloated belly.

Polar Industries must deliver an oversized load hundreds of miles north on the winter roads; owner Mark Koyhaykewych recruits Lisa Kelly, then calls in Reno Ward, the 23-year-old son of the late Darrell Ward; a blizzard adds a new layer of danger.

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

Polar Industries must deliver an oversized load hundreds of miles north on the winter roads; owner Mark Koyhaykewych recruits Lisa Kelly, then calls in Reno Ward, the 23-year-old son of the late Darrell Ward; a blizzard adds a new layer of danger.

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

Nika's brother quits, leaving her and Chris in the lurch at the end of the season; Ken and Guillaume dig deep to get one final big pay day.

Explore the engineering wonders of Europe's lands of ice and fire.

Embark on a thrilling journey through Spain's greatest feats of engineering.

This film reveals the secrets of the UK's engineering wonders.

Dive into the awe-inspiring world of Dutch engineering.

The train station is severely tested during the Formula 1 Grand Prix.

On King's Day, it is all hands-on deck for the staff at Amsterdam Central Station; while Menno and Carolien resuscitate a girl, the rest of the team tries to control the chaos at the station.

The security team has its hands full with a fare dodger.

An explosion of an old railway bridge shakes the station; officers help a woman who fell on an escalator.

Emergency services evacuate passengers from a stranded train without power.

The installation of the new railway bridge attracts a lot of attention.

Venture into the heart of Poland's most awe-inspiring engineering marvels.

Dive into the awe-inspiring world of Dutch engineering.

The installation of the new railway bridge attracts a lot of attention.

Venture into the heart of Poland's most awe-inspiring engineering marvels.

Dive into the awe-inspiring world of Dutch engineering.

This film reveals the secrets of the UK's engineering wonders.

Dive into the awe-inspiring world of Dutch engineering.

The train station is severely tested during the Formula 1 Grand Prix.

On King's Day, it is all hands-on deck for the staff at Amsterdam Central Station; while Menno and Carolien resuscitate a girl, the rest of the team tries to control the chaos at the station.

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

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.

An angry businessman hides the real reason for his hostility; officers try to process some unusual Mexican migrants.

Officers drill an American oil worker with a shady past; a British traveler's proposed reunion with a girlfriend could be cut short.

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.

The final words of a lifelong gold hunter send Adam, Kru and Daryl Friesen through an icy gauntlet high above Pitt Lake.

Harsh flying conditions threaten the search for a historic missing plane.

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

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.

An angry businessman hides the real reason for his hostility; officers try to process some unusual Mexican migrants.

Officers drill an American oil worker with a shady past; a British traveler's proposed reunion with a girlfriend could be cut short.

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

The villagers of Port Protection are back to paving with good intentions.

Curly shoots a bear; Troy and Sarah struggle with a new water system.

Residents tackle tasks at the height of summer's season of productivity.

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

Port Protection's canine community takes center stage.

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

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

USCG stops over 13,000 kg of cocaine and works with HSI to detain smugglers.

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

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

USCG stops over 13,000 kg of cocaine and works with HSI to detain smugglers.

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

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

The villagers of Port Protection are back to paving with good intentions.

Curly shoots a bear; Troy and Sarah struggle with a new water system.

Residents tackle tasks at the height of summer's season of productivity.

A sloshed snowboarder causes trouble at the airport; a pair of packages add up to a deadly surprise.

A bad-tempered drill worker returning home from Japan goes one step too far with officers; a Californian woman hides something in her child's stroller.

A Korean bride-to-be tries to enter Canada as a tourist; the Marine Enforcement Team tackles a massive Japanese freighter carrying an illegal passenger.

Officers suspect an IT consultant has arrived for more than just a holiday; a surfer returns from Southeast Asia with a strange souvenir.

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

An old map connected to testimony from an 1891 eyewitness account of Slumach's hanging sheds light on the legend.

Devastating flash floods threaten Dawson City.

A sloshed snowboarder causes trouble at the airport; a pair of packages add up to a deadly surprise.

A bad-tempered drill worker returning home from Japan goes one step too far with officers; a Californian woman hides something in her child's stroller.

A Korean bride-to-be tries to enter Canada as a tourist; the Marine Enforcement Team tackles a massive Japanese freighter carrying an illegal passenger.

Officers suspect an IT consultant has arrived for more than just a holiday; a surfer returns from Southeast Asia with a strange souvenir.

Vintage Jordans, a mobile barber van and a stuffed animal are left behind.

A lone diamond, $3,000 in cash and cosplay costumes get left behind.

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

Vintage rackets, a live dog and a soldier's uniform are returned to owners.

Airport workers work to reunite travelers with their family's heirloom gold Rolex, a $5000 Gucci bag, an espresso maker and a missing prosthetic eye.

Airport lost-and-found workers strive to reunite travelers with a wrestling championship ring, Native American regalia and a white taxidermied rat.

Lost and Found agents return a pair of Shriners fezzes, a designer watch worth $12,000 and a bride's pearl necklace to their owners.

Lost and found workers return a bag full of old family photos and a wallet.

A CIA veteran helps rescue people during the 2021 Afghanistan withdrawal.

Mariana investigates the growing influence of heavily armed militias.

Lost and found workers return a bag full of old family photos and a wallet.

A CIA veteran helps rescue people during the 2021 Afghanistan withdrawal.

Mariana investigates the growing influence of heavily armed militias.

Vintage Jordans, a mobile barber van and a stuffed animal are left behind.

A lone diamond, $3,000 in cash and cosplay costumes get left behind.

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

Vintage rackets, a live dog and a soldier's uniform are returned to owners.

The Inland Enforcement Team track down an alleged German sex offender; a detector dog sniffs out trouble in an unclaimed suitcase from Dubai.

A Canadian wanted in Alberta is stopped en route to Ecuador; a parcel of baby food contains surprising ingredients.

A Russian dissident's complicated past raises questions for officers; a Korean tourist's resume and school diplomas raise eyebrows.

The Inland Enforcement Unit tracks a pair of Honduran drug runners; an American tourist seems to have already put down roots in Canada.

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.

A recurring mine marker points the team east to neighboring Harrison Lake as leads and legend line up; clues found in a 1950s article by an investigative reporter place a lost Spanish gold mine directly on Slumach's path.

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

The Inland Enforcement Team track down an alleged German sex offender; a detector dog sniffs out trouble in an unclaimed suitcase from Dubai.

A Canadian wanted in Alberta is stopped en route to Ecuador; a parcel of baby food contains surprising ingredients.

A Russian dissident's complicated past raises questions for officers; a Korean tourist's resume and school diplomas raise eyebrows.

The Inland Enforcement Unit tracks a pair of Honduran drug runners; an American tourist seems to have already put down roots in Canada.

As spring begins, the next generation races to finish vital tasks.

The next generation must adapt to the ever-changing demands spring brings.

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 journey behind the scenes of Melbourne Airport to observe the team of dedicated professionals who work around the clock to ensure the airport runs safely and efficiently.

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

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 journey behind the scenes of Melbourne Airport to observe the team of dedicated professionals who work around the clock to ensure the airport runs safely and efficiently.

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

As spring begins, the next generation races to finish vital tasks.

The next generation must adapt to the ever-changing demands spring brings.

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.

Trouble looms for a young Asian woman carrying someone else's bag, and a pair of Canadians return from a concert in California with more than a T-shirt.

A street performer is caught in the middle of an escape act; a cheeky bus passenger answers questions about his mischievous past.

A distinctive bag has officers seeing double; a photographer misses the big picture; a heavily-modified truck causes concern.

A traveler's textbooks teach him an unexpected lesson; a tourist hits a snag instead of the slopes; officers inspect a shipment of cosmetics.

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 source of Slumach's lost gold.

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.

Trouble looms for a young Asian woman carrying someone else's bag, and a pair of Canadians return from a concert in California with more than a T-shirt.

A street performer is caught in the middle of an escape act; a cheeky bus passenger answers questions about his mischievous past.

A distinctive bag has officers seeing double; a photographer misses the big picture; a heavily-modified truck causes concern.

A traveler's textbooks teach him an unexpected lesson; a tourist hits a snag instead of the slopes; officers inspect a shipment of cosmetics.

Spring brings a baby boom of goats, reindeer, and puppies to the clinic.

Dr. Pol and Charles cook up a special treat for Mother's Day.

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

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

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