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

Los Angeles offers everything associated with happiness - fame and fortune, sun and surf - but for Rainn, LA has never been a very happy place; alongside sugar-rushed partygoers and a Yoda in tennis shoes, Rainn looks for bliss in his own backyard.

Bertie searches the islands of Indonesia for an elusive devil ray.

The ingenious fortress designs used to defend France.

Spain's impressive fortifications in a dramatic history of conflict.

Interviews and rare footage document the 1915 Turkish slaughter of Armenians.

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

A blast of arctic air reopens the ice roads; Steph Custance falls victim to severe icing and winds up in a ditch; truckers set out to see if the newly reopened ice crossings are really ready for their big rigs.

Polar Industries must deliver an oversized load hundreds of miles north on the winter roads; owner Mark Koyhaykewych recruits Lisa Kelly, then calls in Reno Ward, the 23-year-old son of the late Darrell Ward; a blizzard adds a new layer of danger.

A blast of arctic air reopens the ice roads; Steph Custance falls victim to severe icing and winds up in a ditch; truckers set out to see if the newly reopened ice crossings are really ready for their big rigs.

Polar Industries must deliver an oversized load hundreds of miles north on the winter roads; owner Mark Koyhaykewych recruits Lisa Kelly, then calls in Reno Ward, the 23-year-old son of the late Darrell Ward; a blizzard adds a new layer of danger.

A desert tortoise needs life-saving surgery; a male prairie dog has a little problem down below; a beloved bunny has a major issue with his anesthesia.

A beloved squirrel travels hundreds of miles to see Dr. K; a goat has some serious udder trouble; Dyanne's bunny needs help.

An owl monkey, opossum and coyote come to the clinic.

Dr. K sees a macaw with a broken wing; a bearded dragon is rushed in as an emergency.

Tonga the Lemur comes into the clinic to be spayed; a young rabbit gets a CT scan; a koi fish sees about a mass.

A prairie dog comes in for an examination after he mysteriously loses his top teeth.

Dr. T and Dyanne are called out to a nature center to examine a male peacock.

Hubble, a crested gecko, comes rushing into the clinic after being attacked by the family dog.

Two emergencies and two surgeries make for a busy day at Dr. K's clinic.

Dr. K and her staff have their hands full with unusual cases that are difficult to solve.

The staff treats a sushi eating-squirrel monkey, a cockatiel and a pregnant rabbit.

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.

The staff treats a sushi eating-squirrel monkey, a cockatiel and a pregnant rabbit.

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. K sees a macaw with a broken wing; a bearded dragon is rushed in as an emergency.

Tonga the Lemur comes into the clinic to be spayed; a young rabbit gets a CT scan; a koi fish sees about a mass.

A prairie dog comes in for an examination after he mysteriously loses his top teeth.

Dr. T and Dyanne are called out to a nature center to examine a male peacock.

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.

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.

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.

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.

Ken contends with a double mutiny; Cam's injured employee is airlifted to a hospital; Karl's crew encounters a bear.

Shark attacks are rare along the northern California coast until seven attacks in 2020 and 2021 leave investigators racing to find a cause.

An unprecedented surge of six shark attacks in just three weeks rocks the popular beaches of New York on one of their busiest days of the year.

In 2021, a spate of seven shark attacks rocks Florida's Treasure Coast, and beach goers want to know why.

An unexpected and mysterious shark species bites beachgoers in Australia.

Experts investigate the first shark attacks ever recorded on Bali's coast.

Every October, shark attacks in Hawaii double; what's behind "Sharktober.".

A series of fatal attacks rocks the South Pacific paradise of New Caledonia.

Five shark attacks in just two summers has South Carolinians scared.

Interviews, outtakes and never-before-seen footage provide insight into the chaos and creativity behind the making of Steven Spielberg's legendary blockbuster "Jaws.".

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

Experts and comics react to viral shark videos, along with pop-up facts.

Scientists investigate the giant tiger sharks of Norfolk Island.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

Experts and comics react to viral shark videos, along with pop-up facts.

An unexpected and mysterious shark species bites beachgoers in Australia.

Experts investigate the first shark attacks ever recorded on Bali's coast.

Every October, shark attacks in Hawaii double; what's behind "Sharktober.".

A series of fatal attacks rocks the South Pacific paradise of New Caledonia.

Suspected of smuggling narcotics, a jittery traveler's next stop is a medical facility; a pair arrives bearing a trophy; CBP question a DJ's find.

A tourist's uncertain vacation plans make him suspicious; two backpackers return with more than just memories; in Port Huron, a traveler carries a concealed weapon.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

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

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.

Ken's wife gets some surprising news when she arrives for a visit; Big Al has trouble with his excavator; Karl's season is threatened by permafrost.

Suspected of smuggling narcotics, a jittery traveler's next stop is a medical facility; a pair arrives bearing a trophy; CBP question a DJ's find.

A tourist's uncertain vacation plans make him suspicious; two backpackers return with more than just memories; in Port Huron, a traveler carries a concealed weapon.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Crew members killed in a deadly airplane accident are spotted on another flight; a painting is blamed for an attack on a child; a ghost attacks a New Zealand man.

Brazen attacks targeting people; seeing if sharks are competing with humans for food.

Scientists race to understand what exactly makes sharks so stealthy to save lives.

Experts investigate why most shark attack victims are men.

Investigators explore why sharks are attacking people in cities.

Scientists try to uncover why pregnant sharks seem more likely to attack.

Sharks are the perfect predator; seeing if humans can learn to outsmart sharks.

Investigators examine some unusual suspects in mysterious shark attacks.

Looking to see if there is a connection between shipwrecks and shark attacks.

Ultra-athlete Ross Edgley pits himself against four legendary sharks.

Scientists race to understand what exactly makes sharks so stealthy to save lives.

Looking to see if there is a connection between shipwrecks and shark attacks.

Ultra-athlete Ross Edgley pits himself against four legendary sharks.

Brazen attacks targeting people; seeing if sharks are competing with humans for food.

Scientists race to understand what exactly makes sharks so stealthy to save lives.

Experts investigate why most shark attack victims are men.

Investigators explore why sharks are attacking people in cities.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

At the American border, agents question an African traveler with a one-way ticket; in Detroit, a passenger receives a special surprise; officers wait for a drug-smuggler to expel a pack of cocaine.

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

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.

Dennis' hunt for gold proves unsuccessful; Ken breaks a machine in his haste to sluice; Karl's season is threatened by floods.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

Cameras follow U.S. border protection agencies as they man the front lines of national security.

At the American border, agents question an African traveler with a one-way ticket; in Detroit, a passenger receives a special surprise; officers wait for a drug-smuggler to expel a pack of cocaine.

A man predicts a deadly plane crash before it happens; a child has a premonition of a volcanic eruption; a California man foretells major U.S. events.

Experts investigate the first shark attacks ever recorded on Bali's coast.

Every October, shark attacks in Hawaii double; what's behind sharktober?

A series of attacks rocks the South Pacific paradise of New Caledonia.

Five shark attacks in just two summers scare South Carolinians.

In the Bahamas, over 30% of dolphins have shark bite scars; using a non-toxic gel bite pad and a life-sized dolphin lure, a look at bite impressions of three species that could be predators.

Fresh pop-up facts and vivid graphics magnify a series of attacks in Australia.

Special edition pop-up facts and graphics aid research into surfing attacks.

Special pop-up facts and graphics unpack bull sharks in unexpected waters.

Special edition pop-up facts and graphics reveal emerging shark attack hotspots.

Experts and comics react to viral shark videos, along with pop-up facts.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

Sharks steal fish from fishing lines; Mackie learns of these cases from locals, but discovers that they indicate larger environmental problems in the Gulf of Mexico.

Experts and comics react to viral shark videos, along with pop-up facts.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

Experts investigate the first shark attacks ever recorded on Bali's coast.

Every October, shark attacks in Hawaii double; what's behind sharktober?

A series of attacks rocks the South Pacific paradise of New Caledonia.

Five shark attacks in just two summers scare South Carolinians.

In the Bahamas, over 30% of dolphins have shark bite scars; using a non-toxic gel bite pad and a life-sized dolphin lure, a look at bite impressions of three species that could be predators.

Fresh pop-up facts and vivid graphics magnify a series of attacks in Australia.

An Asian woman arrives with an American man who is not her husband; CBP discover a large collection of vapes and vape oils in a traveler's luggage; an officer discovers undeclared items belonging to an American couple returning from Europe.

A traveler is suspected of smuggling cocaine; an officer questions a traveler with low funds and a lengthy travel plan; a family from Canada traveling with a puppy is barking up the wrong tree.

CBP has beef with a traveler when they discover undeclared meat in his fiancé's luggage.

In Buffalo, officers search the vehicle of an American permanent resident; CBP are perplexed by a batch of ceramic pastries.

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

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.

Ken takes a roll in his bulldozer; beavers threaten Big Al's operation; Karl's loader springs a leak.

An Asian woman arrives with an American man who is not her husband; CBP discover a large collection of vapes and vape oils in a traveler's luggage; an officer discovers undeclared items belonging to an American couple returning from Europe.

A traveler is suspected of smuggling cocaine; an officer questions a traveler with low funds and a lengthy travel plan; a family from Canada traveling with a puppy is barking up the wrong tree.

CBP has beef with a traveler when they discover undeclared meat in his fiancé's luggage.

In Buffalo, officers search the vehicle of an American permanent resident; CBP are perplexed by a batch of ceramic pastries.

Three men disappear from a yacht in Australia; people vanish from a remote Vermont mountaintop; a pilot is stalked by unidentified aircraft.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

In 2007, Los Angeles was in shock when four shark attacks happened in just three months.

Hawaii is shaken by three bizarre shark attacks in less than five months.

Ten shark attacks leave visitors reeling off Florida's Space Coast in 2003.

Two unlucky ocean lovers encounter sharks on two different occasions.

Investigators seek the cause behind a strange surge of shark attacks in Texas.

Three brutal shark attacks in the Abaco Islands in just thirty-nine days.

Bertie Gregory decides to journey to South Africa to go swimming and diving with some great white sharks.

How the giant megalodon shark took over the oceans.

Scientists investigate the giant tiger sharks of Norfolk Island.

With bonus content, Anthony Mackie investigates sharks in Louisiana.

Bertie Gregory decides to journey to South Africa to go swimming and diving with some great white sharks.

With bonus content, Anthony Mackie investigates sharks in Louisiana.

With bonus content, Anthony Mackie investigates sharks in Louisiana.

Bertie Gregory decides to journey to South Africa to go swimming and diving with some great white sharks.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

In 2007, Los Angeles was in shock when four shark attacks happened in just three months.

Hawaii is shaken by three bizarre shark attacks in less than five months.

Ten shark attacks leave visitors reeling off Florida's Space Coast in 2003.

Two unlucky ocean lovers encounter sharks on two different occasions.

Investigators seek the cause behind a strange surge of shark attacks in Texas.

Three brutal shark attacks in the Abaco Islands in just thirty-nine days.

A family risks losing their stacks of cash; officers are on high alert after an American declares he is packing heat; CBP suspect a traveler is pulling a con job with his US work visa.

A CBP canine tracks a THC-toting traveler.

A traveler isn't blowing smoke when it comes to declaring her cigarettes.

A South American surfer's vague travel plans make waves with CBP.

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.

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.

Ken battles frigid conditions and disappointing returns; an ancient waterfall proves problematic to Cam; Karl's mechanical skills are put to the test.

A family risks losing their stacks of cash; officers are on high alert after an American declares he is packing heat; CBP suspect a traveler is pulling a con job with his US work visa.

A CBP canine tracks a THC-toting traveler.

A traveler isn't blowing smoke when it comes to declaring her cigarettes.

A South American surfer's vague travel plans make waves with CBP.

Dozens of people are hospitalized after coming into contact with a toxic woman; a man becomes a musical genius after being struck by lightning; a teenager cries tears of blood.

Interviews, outtakes and never-before-seen footage provide insight into the chaos and creativity behind the making of Steven Spielberg's legendary blockbuster "Jaws.".

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

It's a social media feeding frenzy as comedians and experts dive into the fun of the world's most viral shark videos.

Discovering the secret life of baby great whites, right off New York City.

Shark attacks in the Red Sea as part of a trend worldwide.

Whether on the hook or in utero, sharks eat their own and scientists from Australia to Florida use the latest tagging and tracking measures to understand why.

The 360 team investigates a string of shark attacks in Australia.

Diva and the 360 team investigate a series of bites by bull sharks.

Discovering the secret life of baby great whites, right off New York City.

Shark attacks in the Red Sea as part of a trend worldwide.

The 360 team investigates a string of shark attacks in Australia.

Diva and the 360 team investigate a series of bites by bull sharks.

Discovering the secret life of baby great whites, right off New York City.

Interviews, outtakes and never-before-seen footage provide insight into the chaos and creativity behind the making of Steven Spielberg's legendary blockbuster "Jaws.".

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

It's a social media feeding frenzy as comedians and experts dive into the fun of the world's most viral shark videos.

A CBP canine is on the hunt for concealed contraband.

Planning a surprise visit to a married man could cause one traveler to be left at the airport; shocked by an undeclared stun gun, CBP race against time to find the owner before the plane boards.

A Mexican woman's relationship patterns are causing her headaches; a man arrives from Canada who is downright radiant.

Two French festival-goers may have to say au revoir to their travel plans; at the Port Huron border, routine questions reveal a traveler has a long criminal history; in San Francisco, a traveler with boring plans comes under heavy scrutiny.

The source of Slumach's lost gold.

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

Ken needs a lifeline in order to salvage his season; Cam encounters a dangerous wall of ice; Big Al's dozer breaks down.

A CBP canine is on the hunt for concealed contraband.

Planning a surprise visit to a married man could cause one traveler to be left at the airport; shocked by an undeclared stun gun, CBP race against time to find the owner before the plane boards.

A Mexican woman's relationship patterns are causing her headaches; a man arrives from Canada who is downright radiant.

Two French festival-goers may have to say au revoir to their travel plans; at the Port Huron border, routine questions reveal a traveler has a long criminal history; in San Francisco, a traveler with boring plans comes under heavy scrutiny.

A man with a strange implant suspects aliens are spying on him; a housewife becomes a literary genius following a seance; a California woman believes the government wants her for a sinister experiment.

Shark attacks in the Red Sea as part of a trend worldwide.

With bonus content, the 360 team investigates a shark bite in Australia.

With bonus content, experts investigate a mysterious cluster of shark bites.

In this enhanced episode, shark bites pop up in Long Island.

With bonus content, experts uncover rare winter bites in California.

Bertie Gregory decides to journey to South Africa to go swimming and diving with some great white sharks.

The 360 team investigates a string of shark attacks in Australia.

Diva and the 360 team investigate a series of bites by bull sharks.

The team uncovers dramatic shark bite changes along South Africa's coast.

The 360 team investigates shark attacks on foil boarders.

Enhanced episode; the clash between a bull shark and hammerhead launches an investigation.

Shark attacks in the Red Sea as part of a trend worldwide.

The team uncovers dramatic shark bite changes along South Africa's coast.

The 360 team investigates shark attacks on foil boarders.

Enhanced episode; the clash between a bull shark and hammerhead launches an investigation.

Shark attacks in the Red Sea as part of a trend worldwide.

With bonus content, the 360 team investigates a shark bite in Australia.

With bonus content, experts investigate a mysterious cluster of shark bites.

In this enhanced episode, shark bites pop up in Long Island.

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.

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

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.

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

Bertie Gregory decides to journey to South Africa to go swimming and diving with some great white sharks.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

Interviews, outtakes and never-before-seen footage provide insight into the chaos and creativity behind the making of Steven Spielberg's legendary blockbuster "Jaws.".

The 360 team investigates a string of shark attacks in Australia.

Diva and the 360 team investigate a series of bites by bull sharks.

The team uncovers dramatic shark bite changes along South Africa's coast.

The 360 team investigates shark attacks on foil boarders.

With bonus content, experts study baby great white sharks near NYC.

With bonus content, experts explore a flurry of shark attacks in Australia.

With bonus content, experts investigate a shark attack on a foil boarder.

With bonus content, experts investigate a series of bites by bull sharks.

With bonus content, Anthony Mackie investigates sharks in Louisiana.

The 360 team investigates a mysterious shark attack on a 10-year-old boy.

The 360 team investigates a devastating shark bite in Australia.

With bonus content, experts uncover a change in bites along South Africa.

With bonus content, experts study baby great white sharks near NYC.

The 360 team investigates a mysterious shark attack on a 10-year-old boy.

The 360 team investigates a devastating shark bite in Australia.

With bonus content, experts uncover a change in bites along South Africa.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

With bonus content, experts study baby great white sharks near NYC.

With bonus content, experts explore a flurry of shark attacks in Australia.

With bonus content, experts investigate a shark attack on a foil boarder.

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.

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.

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.

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.

Ken must make his way up Moose Creek's treacherous road in a desperate attempt to get fuel; Karl has major problems with his sluice; Big Al's stripping dozer goes down for the count.

Shark attacks are rare along the northern California coast until seven attacks in 2020 and 2021 leave investigators racing to find a cause.

Enhanced episode; the clash between a bull shark and hammerhead launches an investigation.

Experts investigate the first shark attacks ever recorded on Bali's coast.

Every October, shark attacks in Hawaii double; what's behind sharktober?

A series of attacks rocks the South Pacific paradise of New Caledonia.

Five shark attacks in just two summers scare South Carolinians.

Whether on the hook or in utero, sharks eat their own and scientists from Australia to Florida use the latest tagging and tracking measures to understand why.

How the giant megalodon shark took over the oceans.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

The 360 team investigates a string of shark attacks in Australia.

Diva and the 360 team investigate a series of bites by bull sharks.

The team uncovers dramatic shark bite changes along South Africa's coast.

The 360 team investigates shark attacks on foil boarders.

The 360 team investigates a mysterious shark attack on a 10-year-old boy.

The 360 team investigates a devastating shark bite in Australia.

A spate of shark bites hits Long Island after 40 years, and experts explore why.

A day of surfing abruptly ends when a shark bites Elinor's surfboard.

How the giant megalodon shark took over the oceans.

In Mexico's Pacific waters, Bertie Gregory goes in search of a predator, the hammerhead shark; once abundant here, hammerhead numbers have declined enough that encounters are now rare.

A spate of shark bites hits Long Island after 40 years, and experts explore why.

A day of surfing abruptly ends when a shark bites Elinor's surfboard.

How the giant megalodon shark took over the oceans.

Shark attacks are rare along the northern California coast until seven attacks in 2020 and 2021 leave investigators racing to find a cause.

Enhanced episode; the clash between a bull shark and hammerhead launches an investigation.

Experts investigate the first shark attacks ever recorded on Bali's coast.

Every October, shark attacks in Hawaii double; what's behind sharktober?

A series of attacks rocks the South Pacific paradise of New Caledonia.

Five shark attacks in just two summers scare South Carolinians.

Two travelers on a world tour are questioned about their packs, plans and partygoing; at Port Huron, a woman hoping to meet her boyfriend for the first time is scrutinized over the contents in her car.

In Boston, CPB stick their necks out to ask about a bottle of ostrich oil; in Detroit, a Canadian law student must explain why her car smells like marijuana.

A dentist from Kiev hopes for an extended stay in the U.S. after fleeing war in her home country; at the Detroit Border, a case of mistaken identity causes alarm; in Chicago, a metaphysical healer wishes a CBP officer good vibes.

A dentist from Kiev hopes for an extended stay in the U.S. after fleeing war in her home country; a traveler headed to Vegas points to a friend as the source of the extra cash he's carrying.

Ken and Guillaume travel over a dangerous mountain pass; Cam worries about getting Gary into the country; Nina and Chris have a difficult start to their season.

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.

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.

Two travelers on a world tour are questioned about their packs, plans and partygoing; at Port Huron, a woman hoping to meet her boyfriend for the first time is scrutinized over the contents in her car.

In Boston, CPB stick their necks out to ask about a bottle of ostrich oil; in Detroit, a Canadian law student must explain why her car smells like marijuana.

A dentist from Kiev hopes for an extended stay in the U.S. after fleeing war in her home country; at the Detroit Border, a case of mistaken identity causes alarm; in Chicago, a metaphysical healer wishes a CBP officer good vibes.

A dentist from Kiev hopes for an extended stay in the U.S. after fleeing war in her home country; a traveler headed to Vegas points to a friend as the source of the extra cash he's carrying.

A window washer falls nearly 50 stories; rocks and boulders move on their own; human feet.

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.