A birds-eye view of the Canaries and Balearic Islands of Spain showcasing marine mammals and unique vineyards; a gothic Cathedral welcomes a rare light phenomenon.

Antoni takes Issa to her father's homeland of Senegal, where they uncover ancestral stories of powerful women and royal connections; through this journey, Issa learns more about her family's epic history and how it all relates to her own identity.

Stanley ventures beyond Rome to explore its less visited countryside.

An aerial tour of the Mediterranean reveals a lonely lighthouse and Christmas celebrations in Malta.

A birds-eye view of the Canaries and Balearic Islands of Spain showcasing marine mammals and unique vineyards; a gothic Cathedral welcomes a rare light phenomenon.

This aerial tour of the Islands of Great Britain reveals a picturesque beach airport.

An aerial journey across the Benelux region reveals the world's biggest storm barrier, one of Europe's busiest ports and a mesmerizing giant flower carpet.

A pleasant American jumps the gun when he decides to go on a quick day-trip; a cheerful traveller's trip is in the bag; a baggage search turns cheesy; a traveller's odd luggage needs to go through the proper channels.

Two long boarders can't skate over their border exam; A traveler's phony story is exposed; a sailor's got more than pennies in his pockets; a rocker's lifestyle drums up some crucial questions.

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.

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

Paul has passport problems after David invites him to an elite-car auction in the United States; a 1959 Cadillac has more problems than expected.

Dutch inventions and innovators have changed the world, from artists like Rembrandt and Van Gogh to Anne Frank, the first stock exchange, telescopes, submarines, windmills, flowers and gin.

A pleasant American jumps the gun when he decides to go on a quick day-trip; a cheerful traveller's trip is in the bag; a baggage search turns cheesy; a traveller's odd luggage needs to go through the proper channels.

Two long boarders can't skate over their border exam; A traveler's phony story is exposed; a sailor's got more than pennies in his pockets; a rocker's lifestyle drums up some crucial questions.

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.

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.

As the seasons change, the next generation must adapt in order to survive.

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

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

Gary Muehlberger is clamming at night and keeps a big fire going to deter the wolves from getting too close; everyone is getting ready for the harsh winter that's on the way.

Gary Muehlberger is clamming at night and keeps a big fire going to deter the wolves from getting too close; everyone is getting ready for the harsh winter that's on the way.

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.

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.

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.

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

Jay clashes with the new guy; a 1972 Plymouth Road Runner GTX arrives at the shop; a one-of-kind Swiss car goes up for auction.

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.

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.

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.

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.

Dr. Pol celebrates turning 80 with a trip to the Netherlands with Diane.

The Pols welcome a fluffy addition to the family; Tater is not pleased.

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

The docs see a goat with severe bloating, a boa constrictor that refuses to feed, and a turtle infected with parasitic "vampire worms.".

In Costa Rica, Dr. Oakley handles a pair of jaguars and a sloth in heat.

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

The docs see a goat with severe bloating, a boa constrictor that refuses to feed, and a turtle infected with parasitic "vampire worms.".

In Costa Rica, Dr. Oakley handles a pair of jaguars and a sloth in heat.

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.

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.

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.

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

Guild owner David orders rivals Jay and Dave to join forces on a vehicle from a horror film; Paul risks his son's education fund on two cars.

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

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.

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.

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

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

Gordon embraces local ingenuity as he fishes and forages through Cuba's vibrant landscapes, discovering unique traditions and resourceful techniques.

Gordon takes on the Florida Keys, going to extremes as he dives into a culinary ocean to gather the ingredients and recipes of the Conch Republic.

Gordon finds big flavors on Hawai'i's Big Island.

Gordon battles it out at Petra to impress Jordan's royal family.

Gordon and his daughter Tilly explore centuries-old culinary traditions in Galicia, a largely overlooked but magnificent corner of Spain.

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

Gen Honoré leads rescue efforts post-Katrina amid pressure to use force; evacuees face discrimination, and tensions rise as violence increases.

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

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

Gen Honoré leads rescue efforts post-Katrina amid pressure to use force; evacuees face discrimination, and tensions rise as violence increases.

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

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

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

Gordon embraces local ingenuity as he fishes and forages through Cuba's vibrant landscapes, discovering unique traditions and resourceful techniques.

Gordon takes on the Florida Keys, going to extremes as he dives into a culinary ocean to gather the ingredients and recipes of the Conch Republic.

Darrell's calls in a surprising reinforcement; but can this new team member hack the treacherous ice roads; Hugh has a brush with near disaster.

Birth of a fragile muntjac fawn; training the elephants.

Vet Tech Jen hand-nurses a newborn fawn; three cheetahs arrive for breeding.

Darrell's calls in a surprising reinforcement; but can this new team member hack the treacherous ice roads; Hugh has a brush with near disaster.

Birth of a fragile muntjac fawn; training the elephants.

Vet Tech Jen hand-nurses a newborn fawn; three cheetahs arrive for breeding.

Dr. Oakley competes in a rodeo and treats a dog with persistent nosebleeds.

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.

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.

Dr. Oakley competes in a rodeo and treats a dog with persistent nosebleeds.

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.

Darrell continues to teach Reno how to drive the ice roads; bad wiring could sink Alex's cement load; Lisa and Todd run into a a road block.

A llama is in trouble; sibling rivalry between two barbary apes.

New keepers run their first bird show; a blind girl gets hands-on with snakes.

Darrell continues to teach Reno how to drive the ice roads; bad wiring could sink Alex's cement load; Lisa and Todd run into a a road block.

A llama is in trouble; sibling rivalry between two barbary apes.

New keepers run their first bird show; a blind girl gets hands-on with snakes.

Ian becomes upset when he is removed from working on a 1970 Datsun 510; the multimillion-dollar Bugatti Aerolithe is damaged.

Australia is home to weird and wonderful creatures that have evolved extraordinary adaptations due to being isolated from the rest of the world.

Australia's coastline is a true natural wonder, encompassing bountiful habitats where mesmerizing and surprising creatures reign supreme.

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.

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

A navy vessel opens fire on a drug boat that won't stop; a Metal Shark crew in Aruba tries to calm down a captain's temper.

A unique look into the mission and inner workings of Greenpeace through its legal campaigns, top-level scientific work and lobbying, and follows the work of activists and campaigners in their mission to save the planet.

The octopus is like an alien on Earth but with shapeshifting superpowers.

A navy vessel opens fire on a drug boat that won't stop; a Metal Shark crew in Aruba tries to calm down a captain's temper.

A unique look into the mission and inner workings of Greenpeace through its legal campaigns, top-level scientific work and lobbying, and follows the work of activists and campaigners in their mission to save the planet.

The octopus is like an alien on Earth but with shapeshifting superpowers.

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.

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.

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.

Alex's ego is crushed when the Bugatti fails to perform; a damaged Alfa Romeo gets a cosmetic overhaul; David attempts to figure out what is wrong with Larry's new Ferrari.

Ken believes his gold camp may be cursed; Karl contends with his crew's mistakes and problems with the big machine his father built; Bernie moves his entire operation out of McDame Creek.

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

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.

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.

Sam's desire to silence his generators ignites a fire that threatens to burn his house to the ground.

Squibb and Troy repair a sinking float that could cause a massive oil spill.

As the community of Port Protection springs forward, Squibb and Troy join forces to repair a sinking float that could cause a massive oil spill.

Sam's youngest son returns, as Veronica learns the basics.

Novice Veronica Arrants risks life and limb to repair the town phone line.

Carl and Morgan attempt to move a thousand-pound sawmill to their property.

Veronica faces a great fear; Sam and Squibb put a web to water.

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

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

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

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

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

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

Sam's desire to silence his generators ignites a fire that threatens to burn his house to the ground.

Squibb and Troy repair a sinking float that could cause a massive oil spill.

As the community of Port Protection springs forward, Squibb and Troy join forces to repair a sinking float that could cause a massive oil spill.

Sam's youngest son returns, as Veronica learns the basics.

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.

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.

David takes Alex to the Elegance at Hershey; the guys work on a 1966 Oldsmobile Toronado and race to complete the Bugatti.

An angry Ken considers firing a worker who disappeared with a crucial piece of equipment; Bernie finally strikes pay dirt; Big Al's camp faces a total shutdown due to equipment problems.

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

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.

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.

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.

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.

Force K6, an Indian regiment of mule handlers in WW2, aided Allied evacuation at Dunkirk, other units escaped Nazi-occupied France.

The stories of three Black sailors, who not only miraculously survived the attack on Pearl Harbor, but also saved countless lives.

Unearthing the hidden heroes of the 320th Barrage Balloon Battalion, the only all-Black combat unit to fight on the D-Day beaches to help liberate Europe.

The Black Panthers, an elite tank unit, push back Hitler's final advance.

Antoni takes Henry to Borneo, where they unearth family stories and taste their way to a deeper connection with Henry's mother's Iban heritage; Henry learns that genealogy in this oral tradition is about far more than storytelling.

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

The Black Panthers, an elite tank unit, push back Hitler's final advance.

Antoni takes Henry to Borneo, where they unearth family stories and taste their way to a deeper connection with Henry's mother's Iban heritage; Henry learns that genealogy in this oral tradition is about far more than storytelling.

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

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.

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.

Joining dedicated teams of agents at Canada's airports and seaports as they intercept visitors smuggling illegal contraband and tourists with tall stories.

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

An American arrives at customs with firearms; a traveler makes a breathtaking statement.

An irritated traveler pushes officers to the limit; Haitian fruits may contain more than vitamins.

David reveals the Bugatti in the Middle East; Ian lands a big break with George Barris' rocket-powered Turbo-Sonic.

Ken's wife visits the camp; Guillaume has trouble moving the giant sluice machine; Karl's hopes for a big payday continue to fade as the season reaches the halfway point; Big Al tries to get Big Girl working again.

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

Joining dedicated teams of agents at Canada's airports and seaports as they intercept visitors smuggling illegal contraband and tourists with tall stories.

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

An American arrives at customs with firearms; a traveler makes a breathtaking statement.

An irritated traveler pushes officers to the limit; Haitian fruits may contain more than vitamins.

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

The next generation explores new territories to claim their fall harvest.

As winter draws near, the needs to hunt, harvest and build are top priorities.

Alaskans must heed Mother Nature's messages or face the consequences.

As fall wanes, Alaskans must do what it takes to prepare for winter.

Sometimes being a little crazy helps to overcome challenges.

Arctic survival forces adaptation on the lives of Alaskans.

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

Twenty years on, this series reveals not just what happened on 7/7, but asks how and why four British men became bombers.

For those who choose to live in Port Protection, freedom comes at the cost of isolation.

National Geographic explorer and writer Paul Salopek walks the Tea Horse Road, a southerly branch of the vast ancient silk road network in China, delving into its rich history and culture through the lens of a village historian.

Twenty years on, this series reveals not just what happened on 7/7, but asks how and why four British men became bombers.

National Geographic explorer and writer Paul Salopek walks the Tea Horse Road, a southerly branch of the vast ancient silk road network in China, delving into its rich history and culture through the lens of a village historian.

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

The next generation explores new territories to claim their fall harvest.

As winter draws near, the needs to hunt, harvest and build are top priorities.

Alaskans must heed Mother Nature's messages or face the consequences.

A woman returning from a trip to China has business cards to a Sydney brothel and passports for three Chinese girls.

A piece of salmon comes up positive for cocaine; Syrian carpets have something suspicious woven into the fabric.

A man arrives from Beijing with strong readings for narcotics; three men want to visit a temple that hasn't been built yet.

Two mechanics butt heads; a Rat Rod rises from the junkyard; a new sheriff lays down the law.

Ken moves across Moose Creek in an effort to change his luck; tension grows as Bernie's junior crew makes mistakes; Karl's night crew slows him down.

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

A woman returning from a trip to China has business cards to a Sydney brothel and passports for three Chinese girls.

A piece of salmon comes up positive for cocaine; Syrian carpets have something suspicious woven into the fabric.

A man arrives from Beijing with strong readings for narcotics; three men want to visit a temple that hasn't been built yet.

Welcome to the fair; Vets rally to keep dreams alive for hardworking kids.

Charles is worried about his dog Athena and looks to his dad for guidance.

From the North Pole to Dr. Pol, everyone is getting in the Christmas spirit.

The staffers become the clients when several of their pets fall ill.

The clinic works together to create an extra special surprise for Diane.

The Pols need to fix the sheep hut before winter arrives.

Everything feels connected as the vets see patterns emerge in their cases.