Qantas Flight 32 suffers an uncontained failure in one of its engines. The failure is the first of its kind for the Airbus A380, the world's largest passenger airliner.

Experts analyze the British Airways Flight 38 incident, in which a lack of engine power caused the plane to crash just before landing at London Heathrow Airport.

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.

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.

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.

Cam and his crew hurry to begin sluicing Donovan cut; Karl motivates his crew; Chris and Nika face a sluice plant breakdown.

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

Lisa's truck loses all heat as temperatures plummet toward -40, forcing her to seek help from Scooter; when the two competitive drivers meet for the first time, they make a bet that changes the course of the season.

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.

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.

Sea lions disappear days before an earthquake; a mysterious medieval manuscript.

Racing to a rescue, rookie Terje runs into trouble when he crashes Thord's tow-truck; Thord risks it all to rescue a garbage truck.

When a truck crashes into a snowbank in the mountains, Thord and rookie Terje must put their lives at risk to save its valuable cargo.

Severe winter weather brings chaos to the mountains and Thord's running out of options; Bjorn does Thord a big favor, leaves his territory and takes a ferry to the coast to rescue a snowplow.

Jo Roger and Ole Henrik struggle to rescue a trailer load of salt that threatens to pollute Norway's biggest salmon river.

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.

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.

When a runaway trailer threatens a main road, Thord risks getting crushed to complete a difficult rescue.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

On a steep hillside, Bjoern risks everything to rescue a tractor that threatens to fall; Thord gets stuck in the mud after a truck sinks deep in a farmers' field; when his tow-truck can't get a grip, he must think on his feet.

When a runaway trailer threatens a main road, Thord risks getting crushed to complete a difficult rescue.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

On a steep hillside, Bjoern risks everything to rescue a tractor that threatens to fall; Thord gets stuck in the mud after a truck sinks deep in a farmers' field; when his tow-truck can't get a grip, he must think on his feet.

Racing to a rescue, rookie Terje runs into trouble when he crashes Thord's tow-truck; Thord risks it all to rescue a garbage truck.

When a truck crashes into a snowbank in the mountains, Thord and rookie Terje must put their lives at risk to save its valuable cargo.

Severe winter weather brings chaos to the mountains and Thord's running out of options; Bjorn does Thord a big favor, leaves his territory and takes a ferry to the coast to rescue a snowplow.

Jo Roger and Ole Henrik struggle to rescue a trailer load of salt that threatens to pollute Norway's biggest salmon river.

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.

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.

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

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.

Todd returns to face an old nemesis that once defeated him and destroyed his truck, Asheweig Road; Lisa tackles the longest run of the season so far, but disaster strikes when a fire breaks out beneath her truck.

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.

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 surfer is saved by dolphins; pets identify people about to die; a teen lifts a car.

Cesar helps an excited pit bull and matches a family with their forever dog.

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

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

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

Cesar rehabs an overprotective Great Dane mix.

A Chihuahua poses a threat to a pet mom's romantic life.

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.

Various individuals discover the most unusual and unruly behaviors of fauna from Australia and New Zealand.

Cesar finds a dog to help a woman heal; he helps a territorial Maltipom.

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.

Various individuals discover the most unusual and unruly behaviors of fauna from Australia and New Zealand.

Cesar finds a dog to help a woman heal; he helps a territorial Maltipom.

Cesar helps an excited pit bull and matches a family with their forever dog.

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

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

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

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.

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.

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

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

Todd hauls a massive machine as he fights his way home in a final showdown with his nemesis, the infamous Asheweig Road; Scooter calls in a local road crew after losing a battle with an angry hill on his return trip along the goat trail.

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.

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.

Rocks and boulders in Death Valley; a light show on Brown Mountain; runners in northern Mexico.

The Allies head into enemy territory after capturing the beaches of Northern France; they embark on a two-month march to liberate Paris.

September 1944: Thousands of troops drop from the skies over the Netherlands, as the Allies launch the largest airborne assault in history.

From the audacious beach landings at Salerno to the mountaintop stand-off at Monte Cassino, the Allies battle to liberate Italy from the Nazis.

From the first shots fired to the horrors of Auschwitz, the battle to free Poland from the grip of the Nazis is one of the toughest of the war.

The new Nazi battleship Bismarck sets out to destroy Allied convoys in the Atlantic; it is up to the Royal Navy to stop it in its tracks.

Just weeks before the war ends, USS Indianapolis is violently sunk; hundreds of men are lost at sea as they fight off exposure and shark attacks; it is the worst disaster at sea in U.S. Naval history.

Undersea explorers aboard the research vessel Petrel detect a wreck off the coast of the Philippines that fits the profile of an American destroyer.

Psychologist Modupe Akinola challenges Chris to stay calm during a terrifying walk along a crane that's projecting from a skyscraper. Chris learns powerful techniques to control stress in his life and combat the risk it poses to long-term health.

In the African savanna, two heroic bugs face mammoth challenges in a land of giants.

Undersea explorers aboard the research vessel Petrel detect a wreck off the coast of the Philippines that fits the profile of an American destroyer.

Psychologist Modupe Akinola challenges Chris to stay calm during a terrifying walk along a crane that's projecting from a skyscraper. Chris learns powerful techniques to control stress in his life and combat the risk it poses to long-term health.

In the African savanna, two heroic bugs face mammoth challenges in a land of giants.

The Allies head into enemy territory after capturing the beaches of Northern France; they embark on a two-month march to liberate Paris.

September 1944: Thousands of troops drop from the skies over the Netherlands, as the Allies launch the largest airborne assault in history.

From the audacious beach landings at Salerno to the mountaintop stand-off at Monte Cassino, the Allies battle to liberate Italy from the Nazis.

From the first shots fired to the horrors of Auschwitz, the battle to free Poland from the grip of the Nazis is one of the toughest of the war.

Lisa, Scooter and company driver Muskie Todd team up as a three-truck convoy to take on the notorious Asheweig Road; the trio must work together to survive a looming disaster.

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.

Lisa, Scooter and company driver Muskie Todd team up as a three-truck convoy to take on the notorious Asheweig Road; the trio must work together to survive a looming disaster.

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.

For many of Michelle Oakley's clients, their pets are more than animals, they're family; whether dog, cat, bird or bovine, these companions hold a special place in their owner's hearts, making the stakes high, but no matter the case, Michelle is always there to keep the family together.

Dr. Oakley herds a group of unruly reindeer and treats a mini ram with a limp.

Dr. Oakley treats an electrocuted sloth and releases rescued animals back into the wild.

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

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.

The team investigates a shark bite in Australia.

Diva uncovers a cluster of shark bites which happened across the world, all within a few days of each other; the team get to work scouring the world for clues to uncover the reasons that connect them.

Dr. Oakley vaccinates a jet-setting chihuahua, tries to outsmart a shifty coyote and meets a cow with an unusual growth.

The team investigates a shark bite in Australia.

Diva uncovers a cluster of shark bites which happened across the world, all within a few days of each other; the team get to work scouring the world for clues to uncover the reasons that connect them.

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

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.

The Muskie Creek convoy struggles to recover from disaster after an ice bridge collapses beneath Lisa's truck, tipping her off the road; Scooter launches an unorthodox plan to get them back on track; Todd races out of the wilderness on a deadline.

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.

The Muskie Creek convoy struggles to recover from disaster after an ice bridge collapses beneath Lisa's truck, tipping her off the road; Scooter launches an unorthodox plan to get them back on track; Todd races out of the wilderness on a deadline.

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.

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

Exploring and investigating the Amazon's diverse ecosystems and species, from mangrove forests to pink dolphins and Andean bears, revealing urgent challenges and hopeful solutions for conserving this vital freshwater resource.

Exploring San Francisco's artisan baking scene, where sourdough has flour power.

In Guatemala, the humble tortilla makes the world go round.

In Turkey, a national obsession for bread feeds bodies and souls alike.

Whistleblower testimony reignites a decades-long fight for transparency.

Commercial pilots come forward about their encounters with UFOs.

Scientists unveil cutting-edge technology helping in the search for UFOs.

People talk about close encounters they've had with UFO phenomena.

Reports from people who say they've been abducted are explored; a Harvard psychiatrist who takes them seriously comes under attack.

No longer waiting for the government to share data, citizen scientists and private groups amplify the search for answers.

Apoorva hides his failed MA from his mother in Bengaluru. He works odd jobs and relies on Swapna. His ability to control blinking becomes a curse when an old man says his father lives.

No longer waiting for the government to share data, citizen scientists and private groups amplify the search for answers.

Apoorva hides his failed MA from his mother in Bengaluru. He works odd jobs and relies on Swapna. His ability to control blinking becomes a curse when an old man says his father lives.

In Turkey, a national obsession for bread feeds bodies and souls alike.

Whistleblower testimony reignites a decades-long fight for transparency.

Commercial pilots come forward about their encounters with UFOs.

Scientists unveil cutting-edge technology helping in the search for UFOs.

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.

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.

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.

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

Devastating flash floods threaten Dawson City.

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.

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 time-traveling woman appears in a bathroom; Pagan worshipers sacrificed humans.

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

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.

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

Port Protection residents remain independent, but no man stands alone.

After losing one of its own, Port Protection tries to move forward.

Spring in Port Protection brings new obstacles and opportunities.

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

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

After losing one of its own, Port Protection tries to move forward.

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

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

After losing one of its own, Port Protection tries to move forward.

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

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.

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

Port Protection residents remain independent, but no man stands alone.

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.

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.

Ken and Guillaume face a dangerous situation; Karl begins sluicing the drained swamp at Last Chance; Cam weighs in for his final sale.

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

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

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.

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.

A man survives six lightning strikes; a toddler freezes, thaws and survives; anchor-like stones.

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.

High-speed bombing tests raise doubts about one student's place in the course.

Aircraft carrier landing is a technical test for the students.

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

Defensive dogfighting proves a tough test, as instructors go for the kill.

With the finish line in sight, the students face their final and big test, as they go head-to-head in a dogfight against an instructor.

The remaining students must dogfight an instructor to earn their wings; past failures mean it's their last chance to get it right.

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

With the finish line in sight, the students face their final and big test, as they go head-to-head in a dogfight against an instructor.

The remaining students must dogfight an instructor to earn their wings; past failures mean it's their last chance to get it right.

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

With the finish line in sight, the students face their final and big test, as they go head-to-head in a dogfight against an instructor.

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.

High-speed bombing tests raise doubts about one student's place in the course.

Aircraft carrier landing is a technical test for the students.

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

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.

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.

Nika and Chris push through the final week of the season; low temperatures freeze Karl's sluicing plant; Ken and Guillaume try to make up for their disappointing season.

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

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.

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.

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.

A woman claims breast implants saved her life; a young man saves a woman; 1.3 billion cows.

Tim Shaw and Fuzz tackle their first-ever Ferrari restoration in the form of a neglected Ferrari 308 GTS; owned by retired Police Sargeant John, this V8 car has more holes than a Swiss cheese.

Tim and Fuzz take on a very well-worn, virtually abandoned, Land Rover Discovery for a very deserving person.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

Tackling a Suzuki Jimny 4x4 owned by retired NHS nurse and devoted mom, Joanna, this little car has a gearbox fault even Suzuki cannot fix.

Tim and Fuzz start off with Andy's Ford Pop hot-rod, a highly modified car from the 1950s; it is bent, broken and full of rust.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

Tackling a Suzuki Jimny 4x4 owned by retired NHS nurse and devoted mom, Joanna, this little car has a gearbox fault even Suzuki cannot fix.

Tim and Fuzz start off with Andy's Ford Pop hot-rod, a highly modified car from the 1950s; it is bent, broken and full of rust.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

Tackling a Suzuki Jimny 4x4 owned by retired NHS nurse and devoted mom, Joanna, this little car has a gearbox fault even Suzuki cannot fix.

Tim Shaw and Fuzz tackle their first-ever Ferrari restoration in the form of a neglected Ferrari 308 GTS; owned by retired Police Sargeant John, this V8 car has more holes than a Swiss cheese.

Tim and Fuzz take on a very well-worn, virtually abandoned, Land Rover Discovery for a very deserving person.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

Tim Shaw and Fuzz Townshend undertake dramatic automobile interventions across the U.K.

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.

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.

The miners recap their highs and lows of the season.

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

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.

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.

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.

A man changes personalities after a heart transplant; perfect circles of ice; a mother unrelated to her children.

Cesar rehabs two aggressive German Shepherds, and one very loud Min Pin Mix.

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

A cattle dog protects her fearful owner, and a family finds a perfect pal.

Cesar rehabs a boxer with an aggressive obsession with attacking handbags.

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.

An eel has anemia; a hippo visits the dentist; a tortoise moves in.

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

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

An eel has anemia; a hippo visits the dentist; a tortoise moves in.

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 two aggressive German Shepherds, and one very loud Min Pin Mix.

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

A cattle dog protects her fearful owner, and a family finds a perfect pal.

Cesar rehabs a boxer with an aggressive obsession with attacking handbags.

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 fiancée, while the discovery of a gold bar and lots of cash spell trouble for another traveler.

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.

Now in a wheelchair, Big Al returns to gold mining; Bernie clashes with his son; Karl finds gold right away; Chris reunites with his partner and their kids.

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.

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 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 fiancée, while the discovery of a gold bar and lots of cash spell trouble for another traveler.

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.

The Army investigates paranormal activity; a boy loses his thumb; an ancient Indonesian skeleton.

Hours after emerging victorious in the first carrier-to-carrier battle of World War II, the USS Lexington erupts in flames due to enemy fire; after 80 years, Petrel hopes to spot the wreck and the planes that went down with the ship.

The Petrel team searches for the American aircraft carrier USS Hornet; the ship's life is cut short when the Hornet sails into a hornet's nest of Japanese ships.

What happened aboard the USS Juneau; five brothers are lost, but not all perish when the ship goes down; at least one brother is among scores of men stranded at sea for eight days.

In one night, over 1000 Allied sailors perish when four cruisers go down in flames; Petrel searches for the cruisers in a graveyard littered with ships.

Rob Kraft hunts for Musashi, the biggest battleship ever built and considered to be unsinkable by the Japanese.

Research vessel Petrel picks up what they believe to be the debris trail of the USS Johnston; a manned submersible is deployed to potentially put eyes on the deepest shipwreck in the world.