In late 1944, Hitler forces the Americans into their biggest battle of the war when he launches a surprise attack into liberated Belgium.

Rainn Wilson's global quest for bliss begins in Iceland, where he gets nude in a cauldron of magma, chugs cod liver oil and learns the art of failure.

Only the most adaptable bugs can thrive in an ever-changing Texan backyard.

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

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

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

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

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.

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.

Cesar rehabs an overexcited labrador and a pushy adolescent doberman.

Fueled by fear, two brothers turn against each other in deadly attacks.

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

Cesar rehabs an over-policing pit mix and a space-invading mini schnauzer.

Cesar helps shed the pounds of an overweight pit mix.

Cesar matches a rescue dog with a family & inspires them to be leaders.

Paraplegic pet mom struggles to manage fighting bulldogs on her own.

Cesar rehabs two destructive Boston terriers and a senior husky that is taking a big social step.

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.

The team investigates a shark bite in Australia.

Diva uncovers a mysterious 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.

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

The team investigates a shark bite in Australia.

Diva uncovers a mysterious 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.

Cesar rehabs an over-policing pit mix and a space-invading mini schnauzer.

Cesar helps shed the pounds of an overweight pit mix.

Cesar matches a rescue dog with a family & inspires them to be leaders.

Paraplegic pet mom struggles to manage fighting bulldogs on her own.

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.

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.

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.

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.

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

Ranking history's 10 most dramatic global disasters.

Ten of history's worst maritime disasters at sea.

Explore the 10 most dramatic structural collapses in history, from bridges to buildings.

When a dam fails, catastrophe follows; history's 10 worst dam failures.

Exploring various catastrophes that have happened in mankind's quest to conquer space, from the Apollo 1 tragedy to the Challenger and the Columbia disasters.

Witness the 10 worst sports crashes from the high-risk world of sport racing.

Trains, planes, and ships collide; exploring ten global collisions.

Earhart, Everest and the Lost City of Z; uncovering the causes behind the top 10 tragic expeditions in history.

Every day our planet faces deadly threats; from earthquakes, viruses, tsunami's and extreme weather phenomenon, to threats from outer space in the form of radiation, asteroids and other space debris.

In this enhanced episode, Stanley delves into Italy's northernmost region.

Stanley immerses himself in the myths and mysteries of this wild island.

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.

In this enhanced episode, Stanley delves into Italy's northernmost region.

Stanley immerses himself in the myths and mysteries of this wild island.

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.

When a dam fails, catastrophe follows; history's 10 worst dam failures.

Exploring various catastrophes that have happened in mankind's quest to conquer space, from the Apollo 1 tragedy to the Challenger and the Columbia disasters.

Witness the 10 worst sports crashes from the high-risk world of sport racing.

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.

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.

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.

Big Al gets off to a great start as the gold mining season begins, while Bernie struggles with a rookie crew and Ken suffers mechanical difficulties.

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

A suspicious speedboat immediately raises a red flag at headquarters.

The customs surveillance team carries out a special operation.

A high-speed chase tests the limits of the Coastguard's fastest boats.

The Coastguard seizes a boat carrying over 3 tons of drugs.

The Coastguard and other security teams battle enemies on all fronts.

Divers abandon their anti-drug operation to attend to a potential drowning.

The team chases a notorious drug trafficker who tries his luck again.

A mom with kids in tow smuggles coke; AMO shoots out a drug boat's motor.

With the help of Troy and Sarah, Squibb tackles a ticking time bomb that threatens to kill all life in the Bay.

The team chases a notorious drug trafficker who tries his luck again.

A mom with kids in tow smuggles coke; AMO shoots out a drug boat's motor.

With the help of Troy and Sarah, Squibb tackles a ticking time bomb that threatens to kill all life in the Bay.

A suspicious speedboat immediately raises a red flag at headquarters.

The customs surveillance team carries out a special operation.

A high-speed chase tests the limits of the Coastguard's fastest boats.

The Coastguard seizes a boat carrying over 3 tons of drugs.

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

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.

The source of Slumach's lost gold.

Ken's gold camp is threatened by a flooding river; Karl falls far behind his rivals; Big Al's machines break down as he hunts "smart" gold.

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

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

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.

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.

Life in the African bush is a game of survival; add babies to the mix and witness mothers perform astounding feats of courage to defend them.

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.

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.

Life in the African bush is a game of survival; add babies to the mix and witness mothers perform astounding feats of courage to defend them.

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.

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.

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.

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

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

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.

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

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.

With town planner Maz suffering from a serious genetic disorder, Tim and Fuzz work on restoring his iconic BMW E30 Alpina, which they find may or may not be a genuine Alpina.

When Brian starts suffering from health problems, the project of restoring his XR2 to show-winning condition comes to a halt; Tim and Fuzz step in.

Fuzz Townshend and Tim Shaw aim to help refrigeration engineer Tim, whose life has been blighted by a cruel genetic condition, as they take on their first-ever Honda.

Tim and Fuzz restore a Citroën SM, widely considered one of the best French cars, after it suffers catastrophic engine failure on its first outing.

Fuzz Townshend and Tim Shaw head to Norfolk to take on a 1962 TVR Grantura, that has been off the road for nearly 50 years.

Tim and Fuzz are out to help Darren, who was left disabled after a tragic road accident in which he saved his grandson, by fixing up his iconic 1989 Golf.

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

This safari is an epic display of raw nature, as eternal enemies battle it out for survival and lines between hunter and hunted become blurred.

Tim and Fuzz are out to help Darren, who was left disabled after a tragic road accident in which he saved his grandson, by fixing up his iconic 1989 Golf.

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

This safari is an epic display of raw nature, as eternal enemies battle it out for survival and lines between hunter and hunted become blurred.

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.

With town planner Maz suffering from a serious genetic disorder, Tim and Fuzz work on restoring his iconic BMW E30 Alpina, which they find may or may not be a genuine Alpina.

When Brian starts suffering from health problems, the project of restoring his XR2 to show-winning condition comes to a halt; Tim and Fuzz step in.

Fuzz Townshend and Tim Shaw aim to help refrigeration engineer Tim, whose life has been blighted by a cruel genetic condition, as they take on their first-ever Honda.

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 a container.

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.

An avalanche risk forces a bombing mission above the Klondike Highway.

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.

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

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 a container.

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

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.

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

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.

Giraffes stop traffic, a lemur has a birthday and a hippo makes friends.

As humans take up more space in our growing cities, animals adapt; finding out why the rhino crossed the road and how monkeys use the metro.

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

Giraffes stop traffic, a lemur has a birthday and a hippo makes friends.

As humans take up more space in our growing cities, animals adapt; finding out why the rhino crossed the road and how monkeys use the metro.

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

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.

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

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.

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

Two longboarders 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.

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

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

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

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.

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

Two longboarders 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.

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

New colorized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

A look at some of the extraordinary events of the Second World War from a brand-new perspective.

In 1942, Hitler wants revenge for the relentless bombing of German cities; in a secret research facility, his scientists are developing the world's first cruise and ballistic missiles.

In 1945, Stalin wages a war of annihilation against Nazi Germany; over one million Soviet soldiers charge towards Berlin; the Red Army must defeat several German strongholds in a series of battles.

By 1943 Hitler's marauding armies have steamrollered across mainland Europe; the allies can't compete on the battlefield, so the commanders plan an audacious attack on the booming industry, which is producing German tanks, submarines and aircraft.

December 1944 - Hitler launches an all-out assault on the Western front across Belgium and Luxembourg; vastly outnumbered allied platoons face off against entire German battalions in a series of David Vs Goliath attacks.

In May 1940, 400,000 Allied troops are surrounded by Hitler's army on the beaches of Dunkirk; deep in the tunnels under Dover Castle, the Royal Navy plans a rescue mission; success or failure could decide the outcome of the war.

Seeking to understand the nature of happiness, Rainn visits Bulgaria, where he skateboards, gorges on pastries and attends a concert in a stranger's bedroom.

Bertie Gregory searches for deadly wave-washing killer whales in Antarctica.

In May 1940, 400,000 Allied troops are surrounded by Hitler's army on the beaches of Dunkirk; deep in the tunnels under Dover Castle, the Royal Navy plans a rescue mission; success or failure could decide the outcome of the war.

Seeking to understand the nature of happiness, Rainn visits Bulgaria, where he skateboards, gorges on pastries and attends a concert in a stranger's bedroom.

Bertie Gregory searches for deadly wave-washing killer whales in Antarctica.

New colorized footage and testimony reveals the cost of victory, the aftermath of war and the liberation of the camps and the destruction of Germany.

A look at some of the extraordinary events of the Second World War from a brand-new perspective.

In 1942, Hitler wants revenge for the relentless bombing of German cities; in a secret research facility, his scientists are developing the world's first cruise and ballistic missiles.

In 1945, Stalin wages a war of annihilation against Nazi Germany; over one million Soviet soldiers charge towards Berlin; the Red Army must defeat several German strongholds in a series of battles.

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 road block.

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

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 road block.

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

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.

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.

A spate of bites hits Long Island, N.Y., after 40 years; with sand tiger sharks likely responsible, Diva Amon dives with them to find answers.

Diva uncovers a mysterious cluster of shark bites in California; but these bites are in the winter when the sharks are usually long gone; to understand the reasons behind this cluster of encounters, the team gets to work.

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

A spate of bites hits Long Island, N.Y., after 40 years; with sand tiger sharks likely responsible, Diva Amon dives with them to find answers.

Diva uncovers a mysterious cluster of shark bites in California; but these bites are in the winter when the sharks are usually long gone; to understand the reasons behind this cluster of encounters, the team gets to work.

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.

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.

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

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.

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

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

Archaeologists exploring the origins of the civilization 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.

An expedition uses sonar technology to map sunken Allied vessels off the Normandy Coast; there are more than a hundred shipwrecks in the English Channel of the landing craft and ships that took part in the Normandy landings on D-Day.

Draining the ocean reveals a Basque galleon trading in whale oil; the Spanish empire relies on ships like this one to bring back valuable cargo; draining an Armada wreck off the coast of Ireland reveals a battle for control between Spain and England.

Shedding light on German U-Boats, the world's first stealth weapons.

Maritime archaeologists and historians search for the lost wrecks of the American Civil War.

Long-lost ships reveal the race to find gold in the California and Klondike gold rushes.

Using computer-generated imagery, the Cold War's lost nuclear weapons are revealed on ocean floors, along with evidence of secret nuclear confrontations.

Submerged shipwrecks and subterranean secrets reveal the story of New York City's rise.

In this enhanced episode, Stanley ventures to the fertile countryside.

Stanley digs into the time-honored recipes of this famous region.

A cheetah disappears underwater in seconds; a crocodile takes on ten lions; a buffalo plays tug-of-war with a crocodile's nose.

In this enhanced episode, Stanley ventures to the fertile countryside.

Stanley digs into the time-honored recipes of this famous region.

A cheetah disappears underwater in seconds; a crocodile takes on ten lions; a buffalo plays tug-of-war with a crocodile's nose.

Draining the ocean reveals a Basque galleon trading in whale oil; the Spanish empire relies on ships like this one to bring back valuable cargo; draining an Armada wreck off the coast of Ireland reveals a battle for control between Spain and England.

Shedding light on German U-Boats, the world's first stealth weapons.

Maritime archaeologists and historians search for the lost wrecks of the American Civil War.

Long-lost ships reveal the race to find gold in the California and Klondike gold rushes.

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.

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.

Devastating flash floods threaten Dawson City.

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

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

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.

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.

A phenomenon is happening on farms all over the world, where cows are being mysteriously mutilated.

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.

Mariana heads to the Congo to investigate the illegal trading of wild apes that has apes on the brink of extinction.

The trafficking of human remains yields billions of dollars globally and remains clandestine; Mariana's investigation reveals the vulnerability of anyone to human remains trafficking.

Mariana heads to Mexico to investigate the billion-dollar business of people-smuggling to the U.S., a system fueled by cartels and corruption.