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.

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

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

Jolo the rescued manatee battles a potentially deadly parasitic infection that puts her release into jeopardy; a cheetah has tummy trouble; Kianga the elephant throws a temper tantrum.

Even giants start small - a humpback whale calf must learn the secrets of its family.

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

Jolo the rescued manatee battles a potentially deadly parasitic infection that puts her release into jeopardy; a cheetah has tummy trouble; Kianga the elephant throws a temper tantrum.

Even giants start small - a humpback whale calf must learn the secrets of its family.

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

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.

Officers add charges to a woman's lengthy rap sheet and stumble upon a hair-raising package from Malaysia.

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.

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

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

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

Officers add charges to a woman's lengthy rap sheet and stumble upon a hair-raising package from Malaysia.

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.

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

The discovery of gold and silver artifacts in Laos, dating to the early days of the Khmer Empire, leads scientists to investigate how the objects were made; on their journey, they retrace the steps of the ancient kings.

A look into how the T. rex became king of the dinosaurs.

A look into how prehistoric land mammals evolved into top ocean predators.

How the giant ice age mammoth became extinct.

Taking a look at the excavations in the La Brea Tar Pits in Los Angeles and showcasing how the pits can help unravel the mystery of how the saber-toothed tiger hunted its prey.

How the giant megalodon shark took over the oceans.

How the Tasmanian Tiger became extinct.

Hannah Fry explores Vietnam's post-war transformation; from moped chaos in Ho Chi Minh City to the muddy graft of prawn harvest in the Mekong Delta and a restorative spa bath in Sapa, Hannah reveals a nation embracing change.

How the giant megalodon shark took over the oceans.

How the Tasmanian Tiger became extinct.

Hannah Fry explores Vietnam's post-war transformation; from moped chaos in Ho Chi Minh City to the muddy graft of prawn harvest in the Mekong Delta and a restorative spa bath in Sapa, Hannah reveals a nation embracing change.

How the giant megalodon shark took over the oceans.

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

The discovery of gold and silver artifacts in Laos, dating to the early days of the Khmer Empire, leads scientists to investigate how the objects were made; on their journey, they retrace the steps of the ancient kings.

A look into how the T. rex became king of the dinosaurs.

A look into how prehistoric land mammals evolved into top ocean predators.

A small convoy heads out with an oversized load; Lisa Kelly and Reno Ward's skills are tested by the treacherous journey; Art Burke attempts to navigate an ice road over a frozen lake; Alex Debogorski stops to help a stranded trucker.

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

A small convoy heads out with an oversized load; Lisa Kelly and Reno Ward's skills are tested by the treacherous journey; Art Burke attempts to navigate an ice road over a frozen lake; Alex Debogorski stops to help a stranded trucker.

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

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 at Critter Fixer help puppies, kittens and expectant pets in need.

The docs teach the next generation; student vets and young clients help out.

The docs help families through their beloved pets' scariest moments.

The docs help farmers and friends with a variety of goat problems.

The docs help dogs, a baby beaver, a goose and a parakeet with emergencies.

The docs help dogs large and small with various ailments.

The docs help unusual critters in the clinic and in the field.

The docs at Critter Fixer help puppies, kittens and expectant pets in need.

The docs teach the next generation; student vets and young clients help out.

The docs help families through their beloved pets' scariest moments.

The docs at Critter Fixer help 15 celebrity chihuahuas and a baby duckling.

The docs teach the next generation; student vets and young clients help out.

The docs help families through their beloved pets' scariest moments.

The docs at Critter Fixer help 15 celebrity chihuahuas and a baby duckling.

The docs teach the next generation; student vets and young clients help out.

The docs help families through their beloved pets' scariest moments.

The docs help farmers and friends with a variety of goat problems.

The docs help dogs, a baby beaver, a goose and a parakeet with emergencies.

Reno Ward has a disastrous encounter with a speeding pick-up truck; Lisa Kelly attempts to rescue Reno but is forced to leave him to fend for himself; Art Burke attempts to deliver a Zamboni to save an isolated community's hockey season.

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.

Reno Ward has a disastrous encounter with a speeding pick-up truck; Lisa Kelly attempts to rescue Reno but is forced to leave him to fend for himself; Art Burke attempts to deliver a Zamboni to save an isolated community's hockey season.

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.

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.

Predators and prey in India's deserts battle each other and the harshest of landscapes for food, water and breeding rights.

The filmmakers explore how India's monsoon forest is a place of both sanctuary and extremes, where all must live by the law of the seasons.

India's diverse mountain ranges boast incredible natural wealth. From the Himalayas to the Western Ghats, every corner is a vital refuge for the country's rarest creatures.

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 filmmakers provide a forensic look at how polar bears hunt seals, whales and walruses; offering new perspectives on how these animals expertly detect, track and execute the kill.

The filmmaker sheds light on how leopards hunt their prey, such as the impala, catfish and storks, offering new insights into their killer strategies.

The filmmaker looks at how wolves hunt their prey, such as the bison and musk oxen, offering new perspectives on the way pack predators locate, isolate and kill.

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

Spring rain brings new opportunities to the land of the Iberian lynx. However, the lynxes of the valley find it challenging to raise their cubs.

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

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

Spring rain brings new opportunities to the land of the Iberian lynx. However, the lynxes of the valley find it challenging to raise their cubs.

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

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

India's diverse mountain ranges boast incredible natural wealth. From the Himalayas to the Western Ghats, every corner is a vital refuge for the country's rarest creatures.

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 filmmakers provide a forensic look at how polar bears hunt seals, whales and walruses; offering new perspectives on how these animals expertly detect, track and execute the kill.

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.

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 big bump takes out Art Burke's radiator; Todd Dewey's rig lands in a snowbank; Steph Custance regrets her foray onto a wet ice crossing; Alex Debogorski uses a sled to drag a construction shack across a frozen lake.

After an early setback, Big Al questions his instincts; Ed and Riley struggle to transport a sluice plant to their remote mine site; bad weather causes a roadblock for PJ and Andy.

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

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.

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 long winter forever changes the paths of Port Protection's residents.

Carl hunts a deer; Troy dives and Curly and Veronica embrace danger.

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

The residents of Port Protection build a life-changing tool.

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

Sam and Squibb attempt to salvage an unwieldy boat mast.

Hoping to add a new weapon to his fishing arsenal, Oliver hits the water with Carl, Matt and a new set of slinky pots, and they're in for a shock.

Port Protection's canine community takes center stage.

AMO pursues a boat fleeing to foreign waters; CBP busts a drug-smuggling family.

Eager to prove herself, Breanna splits from Oliver in search of deer; Terry helps Troy and Sarah while Squibb attacks Veronica's parking problem.

Port Protection's canine community takes center stage.

AMO pursues a boat fleeing to foreign waters; CBP busts a drug-smuggling family.

Eager to prove herself, Breanna splits from Oliver in search of deer; Terry helps Troy and Sarah while Squibb attacks Veronica's parking problem.

A long winter forever changes the paths of Port Protection's residents.

Carl hunts a deer; Troy dives and Curly and Veronica embrace danger.

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

The residents of Port Protection build a life-changing tool.

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

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.

Lisa Kelly and Steph Custance team up for a challenging passage on the icy terrain; Art Burke brings a split load into the north country, hoping this will be his last load of the year; Todd Dewey hauls a double oversized camp shack.

Big Al's health declines; Chris deals with a rookie mine hand; PJ and Andy face floods and breakdowns.

After aborting his mission last season, lone wolf prospector David Muise returns undeterred and looking for a partner.

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

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.

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

Pakistan International Airlines Flight 8303 crashes near Karachi on 22 May 2020, minutes from landing. The Airbus A320 collides with a residential area during a second approach, just miles from the runway.

Experts shed light on the United Airlines Flight 232 crash as survivors share their firsthand accounts.

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

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

Lion Air Flight 610 was just 13 minutes into flight from Jakarta, Indonesia, when it plunges into the sea on October 29, 2018.

The 1985 Japan Airlines Boeing 747 crash is the deadliest single-aircraft accident in history, with 520 fatalities out of 524 people on board.

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

The clock is ticking in the CIA's pursuit of the country's most wanted fugitive.

Mariana investigates the dirty business of bogus addiction treatment.

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

The clock is ticking in the CIA's pursuit of the country's most wanted fugitive.

Mariana investigates the dirty business of bogus addiction treatment.

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

Pakistan International Airlines Flight 8303 crashes near Karachi on 22 May 2020, minutes from landing. The Airbus A320 collides with a residential area during a second approach, just miles from the runway.

Experts shed light on the United Airlines Flight 232 crash as survivors share their firsthand accounts.

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

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

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

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.

Drivers head out one last time during the spring thaw; Steph Custance slides into trees; Todd Dewey struggles with a load on a twisty trail; Art Burke retrieves a heavy bulldozer; Reno Ward's truck dies on the ice; Lisa Kelly gets an emergency call.

Hiro's Curse returns for Big Al; unstable ground shuts down Chris.

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

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

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

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.

For Alaska Natives, preparing for the future means revisiting the past.

Traditional knowledge gives hope to future generations of Alaska Natives.

Alaska Natives must seek the bounty of the sea during the busy summer.

On the rivers their ancestors relied on, Alaska Natives subsist and thrive.

Alaska Natives fight to continue traditional practices on changing lands.

Alaska Natives travel the rivers of their homelands to seek critical resources.

Alaska Natives prepare for fall hunting and harvest.