Mariana goes inside the world of contract killers.

US Airways Flight 1549 takes off from New York City's LaGuardia Airport when it collides with a flock of birds, destroying both engines.

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

Mariana explores the global surrogacy market to understand how the dream of starting a family is fueling a babies-for-cash black market.

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.

Officers are stumped by a backpacker carrying photos of his criminal activities; an American band gets caught in a jam.

Staff confront an American soldier running scared; a British woman causes confusion with her bag of tricks.

Hidden compartments in a traveler's backpack raise red flags; the discovery of a deadly weapon leaves mail center workers stunned.

Officers look for a message in a bottle; a lack of papers land a group of LA rappers in the doghouse; a young man receives a wake-up call.

A storm delivers deadly driving conditions as the truckers struggle to deliver their loads.

The source of Slumach's lost gold.

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.

Officers are stumped by a backpacker carrying photos of his criminal activities; an American band gets caught in a jam.

Staff confront an American soldier running scared; a British woman causes confusion with her bag of tricks.

Hidden compartments in a traveler's backpack raise red flags; the discovery of a deadly weapon leaves mail center workers stunned.

Officers look for a message in a bottle; a lack of papers land a group of LA rappers in the doghouse; a young man receives a wake-up call.

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.

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

A lorry hits a safety net and overturns, so Thord and Bjørn have to work into the small hours to rescue the load of fresh salmon; in the north, Jo Roger has to rescue a lorry stuck in the snow.

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.

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

A lorry hits a safety net and overturns, so Thord and Bjørn have to work into the small hours to rescue the load of fresh salmon; in the north, Jo Roger has to rescue a lorry stuck in the snow.

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.

An accidental detour leads two Canadians to a dead-end; an ornate frame holds more than just a picture; a man is suspected of money laundering.

An American traveler has trouble recalling his hazy past; bad decisions may keep a rugby player off the pitch; a bag is found in a restricted area.

A traveler's belongings raise repeated alarms; a man's reasons for studying in Canada may not be academic; an American couple make the move to Alaska.

A currency dog sniffs out thousands in undeclared cash; an aspiring actor can't keep track of the plot; officers arrest a wanted burglar.

Darrell and Todd try to get through record breaking snowfall, while the rest of the team fights to survive; despite frigid temperatures the war between VP Express and Polar reaches a boiling point.

It's up to Adam to push forward and guide the team through the uncharted terrain of Corbold Canyon.

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.

An accidental detour leads two Canadians to a dead-end; an ornate frame holds more than just a picture; a man is suspected of money laundering.

An American traveler has trouble recalling his hazy past; bad decisions may keep a rugby player off the pitch; a bag is found in a restricted area.

A traveler's belongings raise repeated alarms; a man's reasons for studying in Canada may not be academic; an American couple make the move to Alaska.

A currency dog sniffs out thousands in undeclared cash; an aspiring actor can't keep track of the plot; officers arrest a wanted burglar.

Cesar rehabs an overexcited Australian shepherd and its emotional pet parent.

Cesar helps an aggressive beagle and a Malinois that refuse to leave home.

A pitbulls aggression is fueled by fear; a Frenchie eats everything.

Cesar helps a possessed pit mix and a miniature dachshund with a giant bark.

Cesar rehabilitates a German shepherd whose behavior is getting dangerous.

A couple with a baby seeks Cesar's help with a dog who bites and guards.

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

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

Orcas captivate with their intelligence and family structures; recent attacks on boats near Gibraltar raise questions, are they threatening us or just playing?

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

Orcas captivate with their intelligence and family structures; recent attacks on boats near Gibraltar raise questions, are they threatening us or just playing?

Cesar rehabs an overexcited Australian shepherd and its emotional pet parent.

Cesar helps an aggressive beagle and a Malinois that refuse to leave home.

A pitbulls aggression is fueled by fear; a Frenchie eats everything.

Cesar helps a possessed pit mix and a miniature dachshund with a giant bark.

An American's trip to Alaska heads south; officers suspect a convicted drug dealer is taking his business north; a ship containing weapons is searched.

Officers stop a father and son packing loads of ammo, but can't find the gun. Meanwhile, the Vessel Search Unit find a suspect sailor on a US tug.

A young man's lies could keep him from his fiancee, while the discovery of a gold bar and lots of cash spell trouble for another traveller.

Suspicions about a convicted smuggler uncover a scam; questions are raised when officers stumble upon a suitcase full of meat.

The truckers battle a massive storm.

According to a 1980s author and historian, the Spanish have a long and hidden history of gold exploration in Pitt Lake, and Slumach found their cache.

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.

An American's trip to Alaska heads south; officers suspect a convicted drug dealer is taking his business north; a ship containing weapons is searched.

Officers stop a father and son packing loads of ammo, but can't find the gun. Meanwhile, the Vessel Search Unit find a suspect sailor on a US tug.

A young man's lies could keep him from his fiancee, while the discovery of a gold bar and lots of cash spell trouble for another traveller.

Suspicions about a convicted smuggler uncover a scam; questions are raised when officers stumble upon a suitcase full of meat.

Francis Drake is cemented in history as the world's most controversial pirate.

Grace O'Malley defies gender conventions of her day and becomes the most feared and respected leader of both the land and the sea, eventually rising to Chieftain.

Englishman-turned-Algerian pirate John Ward becomes ruler of the Tunisian empire.

Brilliant strategist Morgan takes humans, treasure, and towns without mercy.

Captain Kidd, the treasure hunter, turns from pirate hunter to pirate.

Blackbeard's name strikes fear into all as a brutal diabolical pirate.

Braver than the men, Anne Bonny and Mary Read are ferocious female pirates.

Bartholomew Roberts is the most successful pirate of the Golden Age.

HSI arrests human smugglers and discovers overcrowded and rundown stash houses in New Mexico; CBP extracts meth from shipped machinery in Miami.

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

Bartholomew Roberts is the most successful pirate of the Golden Age.

HSI arrests human smugglers and discovers overcrowded and rundown stash houses in New Mexico; CBP extracts meth from shipped machinery in Miami.

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

Francis Drake is cemented in history as the world's most controversial pirate.

Grace O'Malley defies gender conventions of her day and becomes the most feared and respected leader of both the land and the sea, eventually rising to Chieftain.

Englishman-turned-Algerian pirate John Ward becomes ruler of the Tunisian empire.

Brilliant strategist Morgan takes humans, treasure, and towns without mercy.

Hugh has a plan to crush the competition; Todd and Lisa are pressured to up their game.

With temperatures on the rise, conditions on the ice roads result in meltdown. The truckers from Polar and VP Express are pushed to the limit, crossing thin ice on their way to deliver critical loads.

Some engineering students carry out an unusual experiment; officers find a construction worker's story has no foundations.

With temperatures on the rise, conditions on the ice roads result in meltdown. The truckers from Polar and VP Express are pushed to the limit, crossing thin ice on their way to deliver critical loads.

The docs at Critter Fixer help their first capybara and an alpaca farm.

The docs at Critter Fixer move quickly to save a canine bitten by a snake.

The docs at Critter Fixer take Vet for a Day to the Zoo Atlanta.

The docs at Critter Fixer help a laboring bulldog and an aquatic axolotl.

The Docs at Critter Fixer return to FVSU as Homecoming Grand Marshals.

The docs at Critter Fixer rush to aid a big tortoise with a cracked shell.

The Docs at Critter Fixer strive to aid the animals of service members.

The docs at Critter Fixer exemplify treating both ends of the leash.

The Docs at Critter Fixer help a rescued wolf and deliver ten puppies.

The doctors at Critter Fixer attempt to outfit a duck with a prosthetic leg.

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

The docs lean on their vet techs to save a beloved sick chicken, help a giant schnauzer, and acclimate some wild bass to a new home.

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

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

The docs lean on their vet techs to save a beloved sick chicken, help a giant schnauzer, and acclimate some wild bass to a new home.

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

The docs at Critter Fixer help their first capybara and an alpaca farm.

The docs at Critter Fixer move quickly to save a canine bitten by a snake.

The docs at Critter Fixer take Vet for a Day to the Zoo Atlanta.

The docs at Critter Fixer help a laboring bulldog and an aquatic axolotl.

Lisa and Todd take on one of the toughest runs of the season; Darrell steals business from his former boss; Alex's trucking season is threatened by a crash.

Adam, Kru and Tony follow the path of a failed 1982 Vancouver news team led by a Slumach gold hunter and mystic dowser.

Lisa and Todd take on one of the toughest runs of the season; Darrell steals business from his former boss; Alex's trucking season is threatened by a crash.

Adam, Kru and Tony follow the path of a failed 1982 Vancouver news team led by a Slumach gold hunter and mystic dowser.

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.

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.

Dan O'Neil explores the strange world of animals that stop at nothing, including leveraging other creatures, to get ahead.

Dan O'Neil explores the weird and wonderful world of mutated animals that take over other animals, including a mind-controlling mushroom and a fish that turns into a set of testicles.

The most-famous witch trials of them all: Salem, Massachusetts.

The brutal Trier witch trials and the origins of witch-hunting.

The true story of the first major witch trials in Scotland.

Witch-hunters torture so-called witches during England's Civil War.

Swedish children tell stories of a place witches took them to.

A terrifying tale of demonic possession in a witch trial in Ireland.

Beast hunter Carpophorus rises in Rome's Colosseum, but at a brutal cost.

Archaeologists exploring the origins of the civilisation that built the great city of Angkor investigate ancient lost treasure discovered in Laos.

A terrifying tale of demonic possession in a witch trial in Ireland.

Beast hunter Carpophorus rises in Rome's Colosseum, but at a brutal cost.

Archaeologists exploring the origins of the civilisation that built the great city of Angkor investigate ancient lost treasure discovered in Laos.

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.

Dan O'Neil explores the strange world of animals that stop at nothing, including leveraging other creatures, to get ahead.

Dan O'Neil explores the weird and wonderful world of mutated animals that take over other animals, including a mind-controlling mushroom and a fish that turns into a set of testicles.

A jewelry box contains something valuable; a biking teen hits a roadblock; a Thai sailor may be land-locked over computer content; a vagabond musician must prove his worth.

The X-ray machine isn't fooled by aluminum foil wrapping; a truck full of plastic seems like it may have been tampered with.

A British traveler hopes to turn their back on their failed marriage; officers do a close inspection of a car that may contain drugs.

A foreign student's possessions are full of surprises; an X-ray machine finds a strange shape inside of a container.

The pickers make a friendly bet to find the greatest piece of kitsch in Newfoundland.

Stressed, Chris and Nika butt heads; Cam faces machine failures and contaminated fuel; Ken and Guillaume find traces of gold.

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.

A jewelry box contains something valuable; a biking teen hits a roadblock; a Thai sailor may be land-locked over computer content; a vagabond musician must prove his worth.

The X-ray machine isn't fooled by aluminum foil wrapping; a truck full of plastic seems like it may have been tampered with.

A British traveler hopes to turn their back on their failed marriage; officers do a close inspection of a car that may contain drugs.

A foreign student's possessions are full of surprises; an X-ray machine finds a strange shape inside of a container.

HSI finds illegal guns in Miami; CBP in Texas seizes meth worth millions.

CBP El Paso uncovers a massive meth load in a railcar; HSI Miami investigates a counterfeit passport ring, with a son implicating his own mother.

CBP seizes suitcases of drugs bound for the UK and looted ancient statues.

CBP seizes fentanyl, coke and heroin; HSI Miami intercepts outbound guns.

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

HSI busts date-rape drug traffickers; CBP stops a car filled with cocaine.

An HSI stakeout leads to nearly $500,000 of meth and fentanyl in San Diego; CBP finds concealed cash and a carload of cocaine at the El Paso border.

PR AMO team hunts down boat loaded with $41 million of coke; CBP gets a tip about money smugglers and finds cocaine and people inside car trunks.

Suárez and Altmann celebrate their control of Bolivia with a lavish party; the new government earns billions from the drug trade and takes brutal action against its opponents.

Chasing smugglers never has a predictable ending.

PR AMO team hunts down boat loaded with $41 million of coke; CBP gets a tip about money smugglers and finds cocaine and people inside car trunks.

AMO Puerto Rico finds cocaine on a ferry; CBP stops travelers with opioids.

Chasing smugglers never has a predictable ending.

HSI finds illegal guns in Miami; CBP in Texas seizes meth worth millions.

CBP El Paso uncovers a massive meth load in a railcar; HSI Miami investigates a counterfeit passport ring, with a son implicating his own mother.

CBP seizes suitcases of drugs bound for the UK and looted ancient statues.

CBP seizes fentanyl, coke and heroin; HSI Miami intercepts outbound guns.

A tattoo artist brings the tools of his trade on his vacation; homemade treats conceal a deadly surprise.

A traveler swallows an unknown substance; a Thai vacation guide offers more than holiday advice; a car dealer takes a long road to the truth; hard iced tea and a passenger bring attention to a trucker.

A driver under the influence risks ending the family vacation; a trip behind the wheel of a borrowed truck raises suspicions.

An untruthful traveler is missing two bags; a favor may land an American in hot water; mail center officers uncover a narcotic scheme; a traveler's visa is revealing; a student learns a lesson; a producer's luggage could be showstopper.

Scott and Sheldon travel to southern British Columbia, where a hot tip leads to the mother lode.

Cam hits permafrost, forcing him to shut down the plant; Ken and Guillaume abandon Arizona Creek; Karl gambles with broken equipment.

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 tattoo artist brings the tools of his trade on his vacation; homemade treats conceal a deadly surprise.

A traveler swallows an unknown substance; a Thai vacation guide offers more than holiday advice; a car dealer takes a long road to the truth; hard iced tea and a passenger bring attention to a trucker.

A driver under the influence risks ending the family vacation; a trip behind the wheel of a borrowed truck raises suspicions.

An untruthful traveler is missing two bags; a favor may land an American in hot water; mail center officers uncover a narcotic scheme; a traveler's visa is revealing; a student learns a lesson; a producer's luggage could be showstopper.

In this enhanced episode, the causes of three disasters are dissected.

Three real-world disasters forensically dissected - Deepwater Horizon explosion, the Concorde crash and the funicular fire at Kaprun.

The causes of three disasters involving a high-rise, a submarine and a subway station are dissected.

In this enhanced episode, the causes of three disasters are dissected, a nuclear plant, a tunnel and a department store.

Enhanced; three real-world disasters dissected: in space, a train and a high-rise.

Enhanced; three real-world disasters dissected: nuclear missile, ferry and oil rig.

In this enhanced episode, the causes of three disasters are dissected; Lac-Mégantic train crash, Imperial Sugar refinery explosion and Ever Given container ship accident.

Three real-world disasters forensically dissected: Fukushima nuclear plant, a Manhattan crane collapse, fire on the aircraft carrier USS Forrestal.

Investigators examine the reason behind the deadly crash of Air France Flight 447 that took a catastrophic dive into the Atlantic Ocean.

Mariana launches an investigation into a complex scam that targets seniors, tricking them into becoming drug mules.

Three real-world disasters forensically dissected: Fukushima nuclear plant, a Manhattan crane collapse, fire on the aircraft carrier USS Forrestal.

Investigators examine the reason behind the deadly crash of Air France Flight 447 that took a catastrophic dive into the Atlantic Ocean.

Mariana launches an investigation into a complex scam that targets seniors, tricking them into becoming drug mules.

In this enhanced episode, the causes of three disasters are dissected.

Three real-world disasters forensically dissected - Deepwater Horizon explosion, the Concorde crash and the funicular fire at Kaprun.

The causes of three disasters involving a high-rise, a submarine and a subway station are dissected.

In this enhanced episode, the causes of three disasters are dissected, a nuclear plant, a tunnel and a department store.

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.

Scott and Sheldon uncover a silver saddle and cedar-stripped canoes in southern British Columbia.

Chris and Nika face financial hardship; Cam's son-in-law is determined to find gold; Ken and Guillaume make a deal with a mining veteran.

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.

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 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.

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

Alaskans engineer inventive solutions for survival in the harsh elements.

After a snowstorm, a car ends up crashed almost 65 yards into a field; Thord tries to tow it out, but he gets stressed when a winch failure jeopardizes the rescue.

Bjørn and Thord work together to rescue a truck heavily loaded with steel; in the north, Jo Roger tries to salvage a new harvester, but he gets angry when the impatient driver delays the rescue, putting the crew in danger.

Alaskans engineer inventive solutions for survival in the harsh elements.

After a snowstorm, a car ends up crashed almost 65 yards into a field; Thord tries to tow it out, but he gets stressed when a winch failure jeopardizes the rescue.

Bjørn and Thord work together to rescue a truck heavily loaded with steel; in the north, Jo Roger tries to salvage a new harvester, but he gets angry when the impatient driver delays the rescue, putting the crew in danger.

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.

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.

While looking for antiques in Quebec's horse country, the Pickers make a large offer on two of the best pieces they have ever seen.

Karl hopes to make a profit at Last Chance; Chris and Nika move to Stowe Creek; Cam and his wife melt the gold they've collected and find they're way below their target.

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

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.

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

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

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.

Scientists race to save the last two northern white rhinos from extinction.

Exploring orcas' remarkable ability to pass down knowledge through generations; marine biologist Florian Graner delves into the diverse cultures of orca populations in the Salish Sea.

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.

Scientists race to save the last two northern white rhinos from extinction.

Exploring orcas' remarkable ability to pass down knowledge through generations; marine biologist Florian Graner delves into the diverse cultures of orca populations in the Salish Sea.

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

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

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

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

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.

Scott and Sheldon uncover nine bar tables reportedly from the tavern owned by NHL star Henri Richard.

Chris and Nika's mine hand Charles gets injured, leaving them short-handed; Cam gives Donovan Cut one final try to save his season; Ken and Guillaume up their recovery system in hopes of catching finer gold.

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.

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 investigate the mysterious mega tombs of a forgotten era.

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

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.