National Geographic Channel

'S1/E9 of 10 - Relitto del Pozzino, Ancient Opium, Liang Tebo'. Roman remedies, ancient opium and Stone Age surgery rewrite medical history.

In this special, we break down the science behind sinkholes and quicksand to learn how to avoid and survive these freaks of nature.

'S1/E1 of 4 - Vampiros'. Discover how vampires crept into our nightmares and why they've stayed there.

'S5/E2 of 6 - Artillery Showdown'. An artillery observer and his radio stand between the survival and capture of a US battalion during a German panzer attack to retake Avranches.

'S1/E8 of 10 - Scottish Island Fortress'. Findings include a small volcanic island with a dark past, elaborate ancient burials, an ancient analogue computer and orcas versus great white sharks.

'S1/E8 of 8 - Off The Hook'. After being left alone in hostile territory, it's a fight to the finish for Cyril and his team as they search for the giant Piraiba.

'S2/E1 of 11'. HSI conducts a controlled delivery of meth, while CBP deals with an unruly passenger.

'S4/E9 of 14'. In this episode we learn just how many ways there are to embarrass, injure and humiliate yourself while doing a ski flip or attempting the limbo.

'S4/E10 of 14'. In this episode we learn just how many ways there are to embarrass, injure and humiliate yourself while jumping into hedges or stopping a longboard.

'S3/E5 - Athletics'. In this episode we learn just how many ways there are to embarrass and injure yourself when attempting a tandem motorbike wheelie and trampolining with friends.

'S3/E1 - Exercise'. Strengthen your understanding of science as we analyse through funny user-generated clips.

'S1/E4 of 8 - King Sized'. Cyril and his team must find their way out of the remote wilderness before severe weather destroys their salmon samples.

'S1/E5 of 8 - Jungle Goliath'. On a trip to the Amazon, Cyril and his team face armed poachers, ravenous piranhas, hunting caimans, massive anacondas and a terrifying flash flood.

'S1/E6 of 8 - Tension On The Line'. With the help of local villagers, Cyril and his team battle a flooded forest and insect stings in their search for pirarucu and piraiba.

'S1/E7 of 8 - Edge Of Disaster'. Cyril and his team battle for survival against hidden stingrays, black piranhas, and massive falling trees on their search for the Piraiba.

'S1/E8 of 8 - Off The Hook'. After being left alone in hostile territory, it's a fight to the finish for Cyril and his team as they search for the giant Piraiba.

'Science Of Stupid: Engineering Specials. S1/E1 of 2 - Science of Stupid Occasions'. In this episode we learn how to lift a space shuttle, what bridges and planes have in common, and why brakes are so important.

'Science Of Stupid: Engineering Specials. S1/E1 of 2 - Science of Stupid Occasions'. In this episode we learn how to lift a space shuttle, what bridges and planes have in common, and why brakes are so important.

'Science Of Stupid: Engineering Specials. S1/E1 of 2 - Science of Stupid Occasions'. In this episode we learn how to lift a space shuttle, what bridges and planes have in common, and why brakes are so important.

'Science Of Stupid: Engineering Specials. S1/E1 of 2 - Science of Stupid Occasions'. In this episode we learn how to lift a space shuttle, what bridges and planes have in common, and why brakes are so important.

'S1/E6 of 8 - America's Sunken Shores'. War, weather and human error have led to some of the worst maritime disasters in US history, but imagine if we could empty the oceans to reveal these secrets.

'S1/E7 of 8 - Deep Water Disasters'. Deep below the ocean lies a tectonic monster. The seafloor is the world's biggest tsunami machine, and its dangers have remained hidden from view - until now!

'S14/E6 of 10 - Nissan GTi-R'. Tim and Fuzz take on a 1990 Japanese pocket rocket, the Nissan GTi-R.

'S14/E5 of 10 - Triumph Bonneville'. Tim and Fuzz take on their first ever motorcycle, a 1973 Triumph Bonneville.

'S14/E4 of 10 - Austin Mini'. Tim and Fuzz turn a crumbling Mini Mayfair into the Ultimate Cooper tribute.

'S14/E3 of 10 - VW Golf GTi Mk1'. Tim and Fuzz turn a dilapidated Mk1 Golf GTi into the ultimate show car for a VW enthusiast.

'S14/E2 of 10 - Mercedes SLK'. Tim and Fuzz restore a Mercedes SLK, a cherished family heirloom packed with memories.

'S14/E1 of 10 - Austin-Healey Frogeye Sprite'. Fuzz and Tim rescue a Frogeye Sprite, trapped in a garage for 50 years.

'World's Ultimate Destinations - Guizhou'. With unrivalled quality and spectacular imagery, this channel brings you award-winning documentaries from around the world.

'S2/E4 of 8 - Plenty Below Zero'. The homesteaders work to survive and thrive in an unforgiving winter wilderness.

'S1/E6 of 8 - Jose Rodriguez'. A CIA director faces fallout when an enhanced interrogation program is exposed.

'S3/E3 of 6 - Castle Valour'. After the surprise of the D-Day landings, Nazi loyalists fight to keep a ruthless grip on the towns, strongholds and fortresses of occupied Europe.

'S4/E2 of 3 - Vegas Breakdown'. At the Clark County Detention Center, inmates enter the jail high, mentally ill or both. These inmates are the jail's problem and responsibility.

'S1/E6 of 6 - Cold Ocean Killer'. Watch the dizzying on-board chaos as seasoned fishermen on America's northeast coast put their vessels, their crews, and their lives at risk.

'World's Ultimate Destinations - Guizhou'. With unrivalled quality and spectacular imagery, this channel brings you award-winning documentaries from around the world.

'S2/E4 of 8 - Plenty Below Zero'. The homesteaders work to survive and thrive in an unforgiving winter wilderness.

'S5/E6 of 6 - Audie Murphy's Finest Hour'. When 2nd Lieutenant Audie Murphy runs out of bullets, he climbs on board a burning tank destroyer to fight on and become a Hollywood legend.

'S14/E3 of 10 - VW Golf GTi Mk1'. Tim and Fuzz turn a dilapidated Mk1 Golf GTi into the ultimate show car for a VW enthusiast.

'S14/E2 of 10 - Mercedes SLK'. Tim and Fuzz restore a Mercedes SLK, a cherished family heirloom packed with memories.

'S14/E1 of 10 - Austin-Healey Frogeye Sprite'. Fuzz and Tim rescue a Frogeye Sprite, trapped in a garage for 50 years.

'S2/E12 of 30 - Barbecues and Hammocks'. Tune in for a smashing time, filled with crashing, falling and exploding! Watch drivers spinning into trees and snowmobiles going off course.

'S2/E21 of 30 - Beer Pong And Wall Vaults (2)'. In this episode we learn just how many ways there are to embarrass, injure and humiliate oneself when vaulting over walls, bouncing on gym balls, and playing beer pong.

'S8/E3 of 16'. In this episode we examine inflatable slides, swing burpees and the kite surfing roll.

'S8/E4 of 16'. In this episode we examine ski backflips, carbonization and walking downstairs on your hands.

'S9/E8 of 11 - Renault Alpine 110'. Tim and Fuzz are picking up one of France's most legendary rally racers in the form of a 1972 Renault Alpine 110 - it belongs to former Italian restaurateur Guido.

'S1/E6 of 8 - America's Sunken Shores'. War, weather and human error have led to some of the worst maritime disasters in US history, but imagine if we could empty the oceans to reveal these secrets.

'S1/E7 of 8 - Deep Water Disasters'. Deep below the ocean lies a tectonic monster. The seafloor is the world's biggest tsunami machine, and its dangers have remained hidden from view - until now!

'S1/E7 of 8'. A German town is shocked when human remains are unearthed that are mutilated beyond recognition. As archaeologists investigate, they reveal proof of human sacrifice.

'S1/E4 of 8 - Haraldskær Woman: Mummy Identity'. When the human remains of a female are uncovered near Vejle, Denmark, an archaeologist begins detailing a fantastic tale of who she was and why she was murdered.

'World's Ultimate Destinations - Guizhou'. With unrivalled quality and spectacular imagery, this channel brings you award-winning documentaries from around the world.

'S3/E5 of 20 - Dead on Arrival'. Food security is thwarted by the arctics predators while efforts to provide warmth are challenged by extreme weather conditions.

'S1/E1 of 10 - Nostradamus, Castle Houska, The First Stigmata'. Nostradamus wrote hundreds of verses that predict the future, Houska Castle is said to be a portal to hell and St. Francis of Assisi claimed the first case of stigmata.

'S1/E10 of 10 - Prophecies of Freedom, Blood Rain, Didyma'. Prophecies of freeing the enslaved, blood rain, and an iconic warrior king.

'S1/E9 of 10 - Kingdom of Cults, Presidents Death, Sacred Chickens'. The Moonies, an American psychic, and a 'fowl' Roman omen are discussed.

'S1/E7 of 10 - Stalin's Prophet, I Ching, The Sacred Buffalo'. Examine a Soviet soothsayer, a Chinese tome, and an augural albino calf.

'S1/E4 of 10 - Sister Possessed, A Healing Cult, The Morrigan'. Examine a nun's demonic prose, a Greek health spa and a Celtic war goddess.

'S1/E3 of 10 - Queen's Conjurer, Ningyo, Temple Of Amun-Ra'. Examine the British scryer, the Japanese 'mermaid', and an Egyptian oracle.

'S1/E1 of 2 - Adventures To New Worlds'. 4000 years ago, daring voyagers sail to new islands in the vast Pacific ocean.

'S1/E9 of 10 - Relitto del Pozzino, Ancient Opium, Liang Tebo'. Roman remedies, ancient opium and Stone Age surgery rewrite medical history.

In this special, we break down the science behind sinkholes and quicksand to learn how to avoid and survive these freaks of nature.

'S1/E2 of 4 - Lobisomens'. We've been haunted-and hunted-by shapeshifting werewolves for millennia.

'S3/E8 of 10 - Crystal Skull, Dragon Chair, Assyrian Star Map'. Is a crystal skull powered? Is a spiked chair torture? Is a tablet astronomical?

'S3/E6 of 10 - Revenant Skeleton, Spy Cam, Shakespearean Mangle'. Are zombies real? Did a device stop Armageddon? Did Shakespeare code his plays?

'Oklahoma City Bombing: One Day in America. S1/E1 of 3 - Explosion'. A massive bomb explodes outside a federal building in Oklahoma City. As the day unfolds, Oklahomans face chaos, panic and heartbreaking decisions.

'S1/E1 of 2 - Adventures To New Worlds'. 4000 years ago, daring voyagers sail to new islands in the vast Pacific ocean.

'S1/E9 of 10 - Relitto del Pozzino, Ancient Opium, Liang Tebo'. Roman remedies, ancient opium and Stone Age surgery rewrite medical history.

With unrivalled quality and spectacular imagery, this channel brings you award-winning documentaries from around the world - from wildlife adventure and exploration to natural phenomena and world cultures.

'S1/E2 of 4 - Lobisomens'. We've been haunted-and hunted-by shapeshifting werewolves for millennia.

'S1/E7 of 10 - Stalin's Prophet, I Ching, The Sacred Buffalo'. Examine a Soviet soothsayer, a Chinese tome, and an augural albino calf.

'S1/E4 of 10 - Sister Possessed, A Healing Cult, The Morrigan'. Examine a nun's demonic prose, a Greek health spa and a Celtic war goddess.

'S8/E2 of 16'. In this episode we learn the science behind the fails when throwing a fishing net, building your own snow luge track, and diving into shallow water.

'S1/E3 of 10 - Queen's Conjurer, Ningyo, Temple Of Amun-Ra'. Examine the British scryer, the Japanese 'mermaid', and an Egyptian oracle.

'S5/E11 of 20'. In this episode we learn how many ways there are to injure and humiliate yourself bench pressing another person, tapping a beer keg or walking in snow.

'S5/E12 of 20'. In this episode we learn how many ways there are to injure and humiliate yourself with stacked push ups, dive bombs or frisbee golf.

'S1/E8 of 10 - Scottish Island Fortress'. Findings include a small volcanic island with a dark past, elaborate ancient burials, an ancient analogue computer and orcas versus great white sharks.

'S11/E3 of 10 - Riley RMF'. Tim and Fuzz take on the challenge of restoring Richard's 1953 Riley RMF, a great British classic that's been in a garage for decades.

'S1/E8 of 8 - Off The Hook'. After being left alone in hostile territory, it's a fight to the finish for Cyril and his team as they search for the giant Piraiba.

'S2/E9 of 17 - Pacific War Megawrecks'. An expedition searches for the iconic wrecks of the Battle of the Pacific, including the USS Indianapolis, the ship that delivered the Hiroshima bomb.

'S2/E1 of 11'. HSI conducts a controlled delivery of meth, while CBP deals with an unruly passenger.

'S20/E4 of 10 - Grounded: Boeing Max 8'. Indonesian investigators must determine why a Boeing 737 Max8, one of the best-selling new airplanes on Earth, plunged into the Java Sea.

'S1/E9 of 10 - Relitto del Pozzino, Ancient Opium, Liang Tebo'. Roman remedies, ancient opium and Stone Age surgery rewrite medical history.

In this special, we break down the science behind sinkholes and quicksand to learn how to avoid and survive these freaks of nature.

'S2/E11 of 20 - Winter Wonderland'. With the help of animations and slo-mo cinematography, Dallas Campbell demonstrates how not to crash when driving a snowmobile.

'S2/E12 of 20 - Inventions'. Dallas Campbell analyses what happens when instead of making our life easier we complicate things.

'S2/E8 of 17 - Thai Cave Rescue'. 'Drain the Oceans' conducts the first accurate 3D survey of the Thai Cave, revealing new insights into the life-and-death mission to save 12 boys from the flooded cave.

'S11/E4 of 10 - Porsche 911 Targa'. Tim and Fuzz travel to Oxfordshire to see if they can restore Ben's broken-down Porsche 911 Targa and bring it back to its original glory.

'S1/E9 of 10 - Spy Island'. Findings include abandoned structures found near Antarctica, disturbing noises heard by diplomats, mysterious slabs on beaches and a long-lost island.

'S2/E1 of 8 - The River Stingray'. Cyril and his team of adventure filmmakers work with local scientists in Argentina to locate the elusive short-tailed river stingray.

'S2/E2 of 11'. CBP targets a wildlife-smuggling ring in Miami and cracks down on cocaine in Atlanta.

'S20/E5 of 10 - Cabin Catastrophe'. A mid-air explosion rocks Southwest Airlines 1380 - while pilots struggle to regain control, flight attendants make a horrifying discovery.

'S1/E2 of 2 - Beyond The Horizon'. Pacific voyagers use double-hull canoes to discover Tahiti, Hawai'i, New Zealand and more.

'S2/E7 of 8 - Spring Has Sprung'. As the weather warms, the homesteaders prepare for a new set of challenges.

'S1/E9 of 10 - Runway Ready'. Toronto Airport takes safety seriously, as challenges impact operations.

'S3/E4 of 6 - Falaise Trap'. After the surprise of the D-Day landings, Nazi loyalists fight to keep a ruthless grip on the towns, strongholds and fortresses of occupied Europe.

'S4/E1 of 12 - Come on Vacation, Leave on Probation'. What happens in Vegas, stays in Vegas.' But pushing the legal limits of a good time can land you in the tightly controlled world of jail.

'Oklahoma City Bombing: One Day in America. S1/E2 of 3 - Manhunt'. It's a race against time to find survivors. Speculation over who is responsible spreads, as investigators launch a nationwide search.

'S1/E2 of 2 - Beyond The Horizon'. Pacific voyagers use double-hull canoes to discover Tahiti, Hawai'i, New Zealand and more.

'S2/E7 of 8 - Spring Has Sprung'. As the weather warms, the homesteaders prepare for a new set of challenges.

'S1/E9 of 10 - Runway Ready'. Toronto Airport takes safety seriously, as challenges impact operations.

'S5/E5 of 6 - Forest Hell'. American soldiers risk everything to protect comrades from minefields and machine gun nests as they clear German defences in the Hurtgen Forest.

'S1/E9 of 10 - Spy Island'. Findings include abandoned structures found near Antarctica, disturbing noises heard by diplomats, mysterious slabs on beaches and a long-lost island.

'S2/E1 of 8 - The River Stingray'. Cyril and his team of adventure filmmakers work with local scientists in Argentina to locate the elusive short-tailed river stingray.

'S2/E2 of 11'. CBP targets a wildlife-smuggling ring in Miami and cracks down on cocaine in Atlanta.

'S4/E11 of 14'. In this episode we learn just how many ways there are to embarrass, injure and humiliate yourself while racing a snowmobile or jumping a skateboard.

'S4/E12 of 14'. In this episode we learn just how many ways there are to embarrass, injure and humiliate yourself while jumping into a snowdrift, drumming or landing your pogo stick.

'S5/E13 of 20'. In this episode we learn how many ways there are to injure and humiliate yourself jumping a park bench, tandem pole dancing, or surfing.

'S5/E14 of 20'. In this episode we learn how many ways there are to injure and humiliate yourself standing on chairs, pushing a car, or doing spins on a unicycle.

'S1/E9 of 10 - Spy Island'. Findings include abandoned structures found near Antarctica, disturbing noises heard by diplomats, mysterious slabs on beaches and a long-lost island.

'S11/E4 of 10 - Porsche 911 Targa'. Tim and Fuzz travel to Oxfordshire to see if they can restore Ben's broken-down Porsche 911 Targa and bring it back to its original glory.

'S2/E1 of 8 - The River Stingray'. Cyril and his team of adventure filmmakers work with local scientists in Argentina to locate the elusive short-tailed river stingray.

'S2/E8 of 17 - Thai Cave Rescue'. 'Drain the Oceans' conducts the first accurate 3D survey of the Thai Cave, revealing new insights into the life-and-death mission to save 12 boys from the flooded cave.

'S2/E2 of 11'. CBP targets a wildlife-smuggling ring in Miami and cracks down on cocaine in Atlanta.

'S20/E5 of 10 - Cabin Catastrophe'. A mid-air explosion rocks Southwest Airlines 1380 - while pilots struggle to regain control, flight attendants make a horrifying discovery.

'S1/E2 of 2 - Beyond The Horizon'. Pacific voyagers use double-hull canoes to discover Tahiti, Hawai'i, New Zealand and more.

'S2/E7 of 8 - Spring Has Sprung'. As the weather warms, the homesteaders prepare for a new set of challenges.

'S2/E13 of 20 - In The Air'. Board a test flight on the winds of knowledge, to explore the many ways in which humans have tried to conquer the skies and failed.

'S2/E14 of 20 - On Holiday'. Dallas Campbell will unveil what you need to know to avoid a trip to the land of stupid.

'S2/E12 of 17'. London is one of the most powerful cities on earth, 'Drain The Oceans' reveals the story of the city's meteoric rise.

'S11/E5 of 10 - Jeep Grand Cherokee'. Tim and Fuzz take on the challenge of restoring this American classic to its off-road capabilities.

'S1/E10 of 10 - Lost Endeavour Island'. Findings include a legendary vessel from the Age of Exploration, haunted military structures, divers going back in time and a tropical trading system of stone disks.

'S2/E2 of 8 - Razor Sharp'. Cyril and his team of adventure filmmakers continue searching for the venomous short-tailed river stingray.

'S7/E1 of 8 - Coke and the Kids'. HSI chases fleeing coke smugglers near a school. Meanwhile, CBP finds shipments of pills, ketamine and counterfeit cash, and stops knockoff shoes at the border.

'S20/E6 of 10 - Meltdown Over Kathmandu'. Air Crash Investigation uncovers the truth behind aviation disasters.

'S4/E4 of 8 - The Cog Needs You'. Unless the Cog can recruit more staff, they will miss their most important deadline ever.

'S11/E2 of 8 - Jackknife Jeopardy'. Raido's on a triple mission, when three trucks block the main road to Oslo.

With unrivalled quality and spectacular imagery, this channel brings you award-winning documentaries from around the world - from wildlife adventure and exploration to natural phenomena and world cultures.

'S3/E5 of 6 - Frozen Offensive'. A U.S. Parachute Infantry Regiment rushes to protect a critical bridge from a Nazi battle group during the opening days of the Battle of the Bulge.

'S4/E7 of 12 - Gangs Behind Bars'. Join Clark County's Gang Special Investigations Unit as they attempt to monitor and disrupt the dangerous gangland activity behind bars.

'Oklahoma City Bombing: One Day in America. S1/E3 of 3 - Justice'. With the suspect in custody, the nation grapples with the reality that the bomber is an American - and the government seeks the death penalty.

'S4/E4 of 8 - The Cog Needs You'. Unless the Cog can recruit more staff, they will miss their most important deadline ever.

'S11/E2 of 8 - Jackknife Jeopardy'. Raido's on a triple mission, when three trucks block the main road to Oslo.

With unrivalled quality and spectacular imagery, this channel brings you award-winning documentaries from around the world - from wildlife adventure and exploration to natural phenomena and world cultures.

'S5/E3 of 6 - Fortress Fury'. A small group of US soldiers armed with plastic explosives, grenades and gasoline must capture the Nazi Fort Koenigsmacker to silence its gun battery.

'S1/E10 of 10 - Lost Endeavour Island'. Findings include a legendary vessel from the Age of Exploration, haunted military structures, divers going back in time and a tropical trading system of stone disks.

'S2/E2 of 8 - Razor Sharp'. Cyril and his team of adventure filmmakers continue searching for the venomous short-tailed river stingray.

'S7/E1 of 8 - Coke and the Kids'. HSI chases fleeing coke smugglers near a school. Meanwhile, CBP finds shipments of pills, ketamine and counterfeit cash, and stops knockoff shoes at the border.

'S4/E13 of 14'. We learn how many ways there are to injure and humiliate yourself when having a food fight, diving from a swimming pool springboard, or ramp jumping on a skateboard.

'S4/E14 of 14'. We learn just how many ways there are to embarrass, injure and humiliate yourself while doing a flip from a bridge, snowboarding, or testing your strength in tug of war.

'S5/E15 of 20'. In this episode we learn how many ways there are to injure and humiliate yourself with golf ricochets, jumping into moving vehicles, or ski racing.

'S5/E16 of 20'. In this episode we learn how many ways there are to injure and humiliate yourself getting out of vehicles, clearing snow off roofs, or stalling a skateboard.

'S1/E10 of 10 - Lost Endeavour Island'. Findings include a legendary vessel from the Age of Exploration, haunted military structures, divers going back in time and a tropical trading system of stone disks.

'S11/E5 of 10 - Jeep Grand Cherokee'. Tim and Fuzz take on the challenge of restoring this American classic to its off-road capabilities.

'S2/E2 of 8 - Razor Sharp'. Cyril and his team of adventure filmmakers continue searching for the venomous short-tailed river stingray.

'S2/E12 of 17'. London is one of the most powerful cities on earth, 'Drain The Oceans' reveals the story of the city's meteoric rise.

'S7/E1 of 8 - Coke and the Kids'. HSI chases fleeing coke smugglers near a school. Meanwhile, CBP finds shipments of pills, ketamine and counterfeit cash, and stops knockoff shoes at the border.

'S20/E6 of 10 - Meltdown Over Kathmandu'. Air Crash Investigation uncovers the truth behind aviation disasters.

'S4/E4 of 8 - The Cog Needs You'. Unless the Cog can recruit more staff, they will miss their most important deadline ever.

'S11/E2 of 8 - Jackknife Jeopardy'. Raido's on a triple mission, when three trucks block the main road to Oslo.

'S2/E15 of 20 - Cars And Trucks'. Science will be racing against stupidity to find out which has more horsepower.

'S2/E16 of 20 - Stunts'. The best clips from seasons 2,3, 4 and 5. Hosted by Dallas Campbell.

'S2/E11 of 17 - Secrets Of Loch Ness'. Combining a hundred years of data with military-grade scanning equipment, we pull the plug on the world's most famous lake to reveal the monster within.

'S11/E6 of 10 - Rover SD1'. Tim and Fuzz take a trip back in time with a 1986 Rover SD1. The car belongs to 58-year-old landscape gardener Darren, who has been suffering from ill-health.

'Gladiators: Warriors of the Ancient World. S1/E1 of 6 - Spartacus: Rise of the Gladiator'. Enslaved warrior Spartacus rises as a gladiator to lead a revolt against Rome.

'S2/E3 of 8 - The Mighty Tarpon'. Tasked by a local scientist, Cyril and his team of adventure filmmakers embark on a dangerous mission in Central America to find the mighty tarpon.

'S7/E2 of 8 - Not My Meth'. A mother crossing by car with her kids is caught smuggling cocaine in El Paso, and AMO shoots out the engine of a boat loaded with coke in Puerto Rico.

'S20/E7 of 10 - Mission Disaster'. After losing two engines near enemy territory, US Air Force pilots abort their refuelling mission and attempt to land their damaged plane.

'S1/E2 of 10 - Crystal Cathedrals And Buried Bunkers'. Scientists uncover salt chambers, bunkers, old kingdoms, and mysterious caves.

'S1/E2 of 2 - Beyond The Horizon'. Pacific voyagers use double-hull canoes to discover Tahiti, Hawai'i, New Zealand and more.

'S1/E7 of 8 - Valencia Floods'. The province of Valencia is hit by the deadliest flooding in modern Spanish history.

'S3/E6 of 6 - Savage Spring'. After the surprise of the D-Day landings, Nazi loyalists fight to keep a ruthless grip on the towns, strongholds, and fortresses of occupied Europe.

'S4/E11 of 12 - Inmates vs. Officers'. At the Clark County Detention Center, keeping the peace comes down to the officers, but it's up to the inmates to give in to the control.

'S1/E1 of 3 - Assassination'. The story of JFK's assassination through the eyes of the secret service agents whose mission was to protect him.

'S1/E2 of 10 - Crystal Cathedrals And Buried Bunkers'. Scientists uncover salt chambers, bunkers, old kingdoms, and mysterious caves.