Legend has it that this ancient civilisation was wiped out by a volcanic eruption, but could the discovery of spectacular palaces in Crete and Santorini challenge the theory.

Emperor Domitian tasks master builder Haterius with constructing a labyrinth underneath the Colosseum floor.

Are intelligent robots the next step in human evolution? As man and machine begin to merge, are we fulfilling a destiny prepared for us by aliens.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Exploring the impact of the Battle of Hastings in 1066, Karl and Kevin continue their look at how weapons and body armour developed.

Presenter Rick Edwards and US YouTube sensation and river detectorist Beau Ouimette travel to Warwick on the hunt for incredible archaeological finds.

Ton and Allen discover a Zildjian-brand percussion cymbal from the 1940s and a control board designed for large-scale fireworks displays.

The guys are forced to bid high at a busy auction in New Orleans. They unearth a pair of duelling pistols and a vintage airboat, but can they make a profit.

Discover some of the combat ships that played key parts in river warfare, from Harriet Tubman's successful gunboat to the high-speed PBRs of Vietnam.

Discover bizarre innovations like a fully functioning car that hovers in midair. Or clothing made out of everyone's favorite source of calcium.

The hunt is on for the Civil War Gold and for $1.5million taken in 1962's Plymouth Mail robbery. Plus, treasure seekers search for the Lost Dutchman mine.

Did a retired Army officer find anomalies in NASA solar photos? Could a giant shark hint at megalodons.

The race to develop the first atomic bomb was critical amid the struggle for WWII victory. Experts reveal new evidence behind Germany's top-secret development of nuclear weapons.

In the final months of WWII, how close were the Nazis and Japan to creating the nuclear explosion that would win the war? Experts and historians examine the evidence.

As humanity prepares to establish colonies beyond Earth, are we pursuing a new future for mankind or returning to its extraterrestrial past.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Presenter Karl Ude-Martinez takes a tour of the weapons used during the Battle of the Somme in 1916, including machine guns and poison gas.

River detectorist turned YouTube sensation Beau Ouimette and presenter Rick Edwards search for underwater archaeological finds tied to the Civil War.

Discover bizarre innovations like a fully functioning car that hovers in midair. Or clothing made out of everyone's favorite source of calcium.

The hunt is on for the Civil War Gold and for $1.5million taken in 1962's Plymouth Mail robbery. Plus, treasure seekers search for the Lost Dutchman mine.

Did a retired Army officer find anomalies in NASA solar photos? Could a giant shark hint at megalodons.

During WWII, soldiers from the British Empire, Belgium and France tried to evacuate from the town of Dunkirk during a arduous battle with German forces. This film explores the story.

Marking the 75th anniversary of D-Day, a special documentary explores the world-changing event through the incredible images and recollections of veteran photographers.

Homer's The Odyssey is the most famous epic ever written - a story of a 20-year journey to return home from war. But could it actually have happened.

Continue the story of Odysseus, a timeless tale of adventure filled with mythological beasts and vengeful gods. But could it actually have happened.

As humanity prepares to establish colonies beyond Earth, are we pursuing a new future for mankind or returning to its extraterrestrial past.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Presenter Karl Ude-Martinez takes a tour of the weapons used during the Battle of the Somme in 1916, including machine guns and poison gas.

River detectorist turned YouTube sensation Beau Ouimette and presenter Rick Edwards search for underwater archaeological finds tied to the Civil War.

The guys find an antique barber chair, two racing lawnmowers and a voodoo chest at an auction in Louisiana, but their potential buyers drive a hard bargain.

Ton and Allen invade the nation's capital, but meet strong resistance from local bidders.

Many fearless captains have led their ships into battle over the centuries, so celebrate some of history's greatest maritime heroes.

Showcasing bizarre and unconventional weapons, explore the incredible stories behind the most outlandish creations in warfare.

Could an ex-cop have solved the mystery of Jimmy Hoffa's disappearance? Plus, experts investigate whether J F Kennedy's brain might have gone missing.

Tony Harris separates the real from the fake in some of the most compelling Bigfoot evidence recently captured, including huge primate-like footprints.

The story of Hitler and his penchant for barbarism and destruction, starting with his surprise Russian invasion and the anarchy that followed.

The story of Hitler and his penchant for barbarism and destruction, starting with his surprise Russian invasion and the anarchy that followed.

Erich von Daniken's "Chariots of the Gods?" suggests that aliens visited Earth in the past. 50 years after the book's publication, can he be proven right.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Revisiting the bloody British uprising against the Romans, presenter Karl Ude-Martinez tests out swords, spears and armour.

Rick Edwards joins YouTuber and detectorist Beau Ouimette on an underwater hunt for lost treasures linked to the ancient Vikings.

Showcasing bizarre and unconventional weapons, explore the incredible stories behind the most outlandish creations in warfare.

Could an ex-cop have solved the mystery of Jimmy Hoffa's disappearance? Plus, experts investigate whether J F Kennedy's brain might have gone missing.

Tony Harris separates the real from the fake in some of the most compelling Bigfoot evidence recently captured, including huge primate-like footprints.

The story of Hitler and his penchant for barbarism and destruction, starting with his surprise Russian invasion and the anarchy that followed.

The story of Hitler and his penchant for barbarism and destruction, starting with his surprise Russian invasion and the anarchy that followed.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

The most important planes in history are grounded with no humans around to fly them, including Air Force One, which suffers an explosive malfunction.

Erich von Daniken's "Chariots of the Gods?" suggests that aliens visited Earth in the past. 50 years after the book's publication, can he be proven right.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Revisiting the bloody British uprising against the Romans, presenter Karl Ude-Martinez tests out swords, spears and armour.

Rick Edwards joins YouTuber and detectorist Beau Ouimette on an underwater hunt for lost treasures linked to the ancient Vikings.

An unassuming mum tries to pull the wool over Ton and Allen's eyes in Arlington, Virginia. The guys uncover a 15th century black powder cannon.

Ton and Allen contend with a crowd of inexperienced auction-buyers in Pasadena. They also find a small fleet of Segway personal transporter.

Combat ships are built to survive, but some blasts are simply too powerful. Dive in and revisit some of the most spectacular explosions in maritime history.

Experts investigate remote ruins, mysterious caves and legendary mountain portals. Could these alleged stargates have brought ancient aliens to Earth.

The Mystery of Puma Punku. Experts in the extra-terrestrial examine the Inca ruin and its mysteriously intricate carved blocks.

We are at War: The German invasion of Poland starts and Jews face segregation. Mussolini allies with Hitler, Churchill is appointed UK PM and Germany invades France.

Shall We Go On: Germany builds its empire in Europe, aiming to crush Britain with the Luftwaffe while France is conquered and divided as Churchill rejects peace.

Armageddon 1943-1945: The defeat at Stalingrad in 1943 was the turning point of the war and convinced the Nazi leadership to intensify their terror and propaganda campaigns.

The Reckoning 1945-1948: In 1945, WWII was over but the violence had not ended. The survivors want to blame the Germans. The reckoning with National Socialism is ambivalent.

Day Of Days: America is on the offensive, but fighting on the Normandy beaches is ferocious and victory will not come quickly, especially for Lt Charles Scheffel.

It's July 10, 1943 and the Allied Forces have evicted the Axis Powers from North Africa and can finally begin the Italian Campaign.

1943 begins with the Casablanca Conference. Events unfold in the week of the Soviet victory in Stalingrad, and one of the best-selling songs in history is released.

Follow the events as the USS Enterprise engages in one of the largest sea battles of the war.

As the US Navy closes in on Okinawa and the Japanese homeland, the Empire unleashes a hellish weapon. Will the Enterprise survive the Kamikaze.

Armageddon 1943-1945: The defeat at Stalingrad in 1943 was the turning point of the war and convinced the Nazi leadership to intensify their terror and propaganda campaigns.

The Reckoning 1945-1948: In 1945, WWII was over but the violence had not ended. The survivors want to blame the Germans. The reckoning with National Socialism is ambivalent.

I Shall Never Look Back: At the beginning of 1942, war wages on the battlefields in Eastern Europe, North Africa and Asia Pacific.

John A. Kantara proves that lies have always been part of warfare, exploring the role of propaganda in spreading one's truth.

After four years of horror on the battlefield, the Allies are in danger of losing to Germany. General John J Pershing races to train the untested American Army.

Experts investigate remote ruins, mysterious caves and legendary mountain portals. Could these alleged stargates have brought ancient aliens to Earth.

The Mystery of Puma Punku. Experts in the extra-terrestrial examine the Inca ruin and its mysteriously intricate carved blocks.

When a professor provides Peter and Elroy with new information, they realise they must expand their investigation to the East Coast.

An unassuming mum tries to pull the wool over Ton and Allen's eyes in Arlington, Virginia. The guys uncover a 15th century black powder cannon.

Meet the three figures who broke the bank on top-of-the-range security features designed to prevent break-ins.

For these ancient figures, acquiring and spending enormous stockpiles of gold was an all-consuming passion.

1943 begins with the Casablanca Conference. Events unfold in the week of the Soviet victory in Stalingrad, and one of the best-selling songs in history is released.

It's July 10, 1943 and the Allied Forces have evicted the Axis Powers from North Africa and can finally begin the Italian Campaign.

a German breakout, a US bomber crew's Soviet secret and the Trojan Horse of Stalag Luft III.

Experts comb history for evidence of children with strange abilities and great knowledge. Could these young people have been born from ancient aliens.

Alien Messages: Could some of our ancient texts and structures be home to secret messages left by alien ancestors? If so, what can we learn from them.

Infamy: By June 1941, Hitler controlled most of Europe, but the USSR resisted invasion. Then Pearl Harbor changed everything.

A Dream of Great Success: After the attack on Pearl Harbor, the Japanese army celebrated its victory. Four months later, the Battle of the Coral Sea shakes their confidence.

Atlantis, the legendary continent that sank. As the Nazis rose to power, Himmler and the SS were convinced Atlantis existed. Season premiere.

In Nazi Germany, questions about witchcraft attracted SS leaders. Himmler, dedicated to an Aryan super race, established a team to research witchcraft.

Point Of No Return: True stories from WWII. As Lt Charles Scheffel leads his unit across France, Marine Nolen Marbrey is wounded in the bloody battle of Peleliu in the Pacific.

December 1941: Under cover of a fierce naval bombardment, a taskforce of elite British commandos sail towards the Norwegian town of South Vaagso.

Halfway through its fourth full year, the fortunes of war were running increasingly in favour of the Allies. The bombing of Hamburg and the Allied Tehran Conference take place.

Colditz Castle, The Great Escape and the bold Warburg Wire Job.

A daring dash through Nazi Europe, a deadly mountain escape and WWII's largest breakout, by men who chose death over dishonour.

Atlantis, the legendary continent that sank. As the Nazis rose to power, Himmler and the SS were convinced Atlantis existed. Season premiere.

In Nazi Germany, questions about witchcraft attracted SS leaders. Himmler, dedicated to an Aryan super race, established a team to research witchcraft.

Rattenkrieg: From Burma to China and war-torn Europe, battles rage on as Japan pushes in Asia and Hitler renews his assault on the Soviet Union.

The most important planes in history are grounded with no humans around to fly them, including Air Force One, which suffers an explosive malfunction.

In Colorado, Ishmael Petty attacks the staff while an inmate starves himself to protest the prison's policies.

Three stories of men willing to take risks to escape the cold, dark cells of 'the Rock'.

Emperor Domitian tasks master builder Haterius with constructing a labyrinth underneath the Colosseum floor.

Experts comb history for evidence of children with strange abilities and great knowledge. Could these young people have been born from ancient aliens.

Alien Messages: Could some of our ancient texts and structures be home to secret messages left by alien ancestors? If so, what can we learn from them.

Analysis of biblical scripture leads the team to investigate sacred sites and ancient tombs as they retrace the possible journey of the lost artefact.

Archaeologists investigate the full story of how the most famous Roman leader, Julius Caesar, rose to power and the battle that took him to the brink of defeat.

Halfway through its fourth full year, the fortunes of war were running increasingly in favour of the Allies. The bombing of Hamburg and the Allied Tehran Conference take place.

December 1941: Under cover of a fierce naval bombardment, a taskforce of elite British commandos sail towards the Norwegian town of South Vaagso.

A Russian soldier's daring escape from a Nazi death camp, a bold plan from a Japanese prison and pilots winning their enemies' respect.

From night soil men cleaning excrement off the streets of Victorian London to professional mourners hired to weep at funerals, to the intrepid deer urine collectors.

Uncovering the mystery of an ancient stone object with unique markings and a cat mummy with no cat inside.

Did a Chilean family photograph a real UFO over the Andes? And does a huge fossil point to a prehistoric figure.

We are at War: The German invasion of Poland starts and Jews face segregation. Mussolini allies with Hitler, Churchill is appointed UK PM and Germany invades France.

Shall We Go On: Germany builds its empire in Europe, aiming to crush Britain with the Luftwaffe while France is conquered and divided as Churchill rejects peace.

Have the US and Russia been working together from the beginning of the Space Race in preparation for the ultimate extraterrestrial encounter.

Oak Island treasure hunter Marty Lagina and Ancient Astronaut theorist Giorgio A. Tsoukalos explore the ancient ruins of Sardinia, Italy.

Hear first-hand accounts from seasoned, decorated police officers who have had unbelievable, but substantiated UFO encounters.

What was it like to face a Napoleonic cavalry charge? Find out as the cannon, grenade and Brown Bess musket go under the microscope.

Rick Edwards joins YouTuber and detectorist Beau Ouimette on an underwater hunt to discover the secrets of Hadrian's Wall.

From night soil men cleaning excrement off the streets of Victorian London to professional mourners hired to weep at funerals, to the intrepid deer urine collectors.

Uncovering the mystery of an ancient stone object with unique markings and a cat mummy with no cat inside.

Did a Chilean family photograph a real UFO over the Andes? And does a huge fossil point to a prehistoric figure.

We are at War: The German invasion of Poland starts and Jews face segregation. Mussolini allies with Hitler, Churchill is appointed UK PM and Germany invades France.

Shall We Go On: Germany builds its empire in Europe, aiming to crush Britain with the Luftwaffe while France is conquered and divided as Churchill rejects peace.

Rise of the New Dons: Follow the conflict between the families' old guard and a new generation of younger, American-born mobsters willing to defy their authority.

Have the US and Russia been working together from the beginning of the Space Race in preparation for the ultimate extraterrestrial encounter.

Oak Island treasure hunter Marty Lagina and Ancient Astronaut theorist Giorgio A. Tsoukalos explore the ancient ruins of Sardinia, Italy.

Hear first-hand accounts from seasoned, decorated police officers who have had unbelievable, but substantiated UFO encounters.

What was it like to face a Napoleonic cavalry charge? Find out as the cannon, grenade and Brown Bess musket go under the microscope.

Rick Edwards joins YouTuber and detectorist Beau Ouimette on an underwater hunt to discover the secrets of Hadrian's Wall.

Ton and Allen challenge a big time auction buyer on his home turf. The guys uncover a 1969 muscle car and a single-shot pistol.

Ton and Allen take on a local thrift store gang in Brooklyn. The guys discover a classic arcade redemption game and a mid-century water cannon.

Celebrate the heroes who often found themselves fighting two battles - one against the enemy and one against racism within their own ranks.

A man survives the apocalypse while a woman is involved in not one, but three maritime disasters and a cat that proves to be unsinkable in battle.

Investigating how a skull changed neuroscience and asking if World War II could have been won by a bat.

What is the identity of a bizarre creature spotted on a driveway? And did the Men in Black threaten a man.

Infamy: By June 1941, Hitler controlled most of Europe, but the USSR resisted invasion. Then Pearl Harbor changed everything.

A Dream of Great Success: After the attack on Pearl Harbor, the Japanese army celebrated its victory. Four months later, the Battle of the Coral Sea shakes their confidence.

Ancient Astronaut theorists explore the idea that meteorites could be pieces of extraterrestrial technology.

Seven stone giants stand guard over a Pacific island. But what are they protecting? And from whom.

The team use high-tech sidescan sonar and deep sea magnetometers to search for evidence after learning of an encounter with an underwater phenomenon.

Can a site on the Lancashire-Yorkshire border shed more light on the Pendle Witch trials of 1612.

Rick and Beau discover a variety of intriguing items as they search the rough waters of the River Tees for lost Tudor relics.

A man survives the apocalypse while a woman is involved in not one, but three maritime disasters and a cat that proves to be unsinkable in battle.

Investigating how a skull changed neuroscience and asking if World War II could have been won by a bat.

What is the identity of a bizarre creature spotted on a driveway? And did the Men in Black threaten a man.

Infamy: By June 1941, Hitler controlled most of Europe, but the USSR resisted invasion. Then Pearl Harbor changed everything.

A Dream of Great Success: After the attack on Pearl Harbor, the Japanese army celebrated its victory. Four months later, the Battle of the Coral Sea shakes their confidence.

The Illuminati: While the Illuminati secret order was disbanded in 1785, many believe this elite group still hold the power and pull strings from behind closed doors.

For thousands of years, wars and conflicts have been fought under the guise of religion. Rudolph Herzog discusses how faith has brewed conflict.

Ancient Astronaut theorists explore the idea that meteorites could be pieces of extraterrestrial technology.

Seven stone giants stand guard over a Pacific island. But what are they protecting? And from whom.

The team use high-tech sidescan sonar and deep sea magnetometers to search for evidence after learning of an encounter with an underwater phenomenon.

Can a site on the Lancashire-Yorkshire border shed more light on the Pendle Witch trials of 1612.

Rick and Beau discover a variety of intriguing items as they search the rough waters of the River Tees for lost Tudor relics.

Ton and Allen are made to feel unwelcome at a silent auction in New Jersey. They uncover a vintage vehicle and a skeet throwing machine from the 1960s.

Allen and Ton go head-to-head with a trash-talking auction buyer. They find a 19th century rifle and a mechanical bowling pinsetter from the 1960s.

Thanks to the heroic acts of sailors, America scored a stunning win in the battle of Guadalcanal, loosening Japan's mighty grip on the Pacific.

From a dog's space voyage to Arctic survival and time travel, these journeys are extraordinary and truly unbelievable.

Exploring the origin of a death mask, three carvings which could shed light on Stonehenge and a plate found in Austria.

Is the strange silver orb in the sky a UFO? And is an infamous spy organisation's footage of aliens real.

I Shall Never Look Back: At the beginning of 1942, war wages on the battlefields in Eastern Europe, North Africa and Asia Pacific.

Rattenkrieg: From Burma to China and war-torn Europe, battles rage on as Japan pushes in Asia and Hitler renews his assault on the Soviet Union.

Rumours are rife that aliens inhabit the continent of Antarctica, but is it true? This episode explores the icy wilderness to find out.

The series investigates satellite images of what seems to be a giant face carved into the earth in Alberta. Could this have extraterrestrial origins.

Has the US military derived various forms of technology, including stealth technology, from downed UFOs? The UFO Magazine team investigate.

More clues to Henry VIII's life are unearthed as Helen Skelton and Alex Langlands join a new dig at one of nearly 60 royal residences owned by the monarch.

Rick and Beau head to the beautiful River Wear, a natural fortress that protects the ancient city of Durham, and discover some intriguing relics from the 1200s.

From a dog's space voyage to Arctic survival and time travel, these journeys are extraordinary and truly unbelievable.

Exploring the origin of a death mask, three carvings which could shed light on Stonehenge and a plate found in Austria.

Is the strange silver orb in the sky a UFO? And is an infamous spy organisation's footage of aliens real.

I Shall Never Look Back: At the beginning of 1942, war wages on the battlefields in Eastern Europe, North Africa and Asia Pacific.

Rattenkrieg: From Burma to China and war-torn Europe, battles rage on as Japan pushes in Asia and Hitler renews his assault on the Soviet Union.

St Paul laid the foundations for what became Christianity. He shaped our world. Now, using the latest research and CGI, see the world that created him.

Enslaved by the Romans, Carpophorus gets trained to fight beasts in the Colosseum for the public's amusement.

Rumours are rife that aliens inhabit the continent of Antarctica, but is it true? This episode explores the icy wilderness to find out.

The series investigates satellite images of what seems to be a giant face carved into the earth in Alberta. Could this have extraterrestrial origins.

Has the US military derived various forms of technology, including stealth technology, from downed UFOs? The UFO Magazine team investigate.

More clues to Henry VIII's life are unearthed as Helen Skelton and Alex Langlands join a new dig at one of nearly 60 royal residences owned by the monarch.

Rick and Beau head to the beautiful River Wear, a natural fortress that protects the ancient city of Durham, and discover some intriguing relics from the 1200s.

After returning to LA, Ton and Allen butt heads with a familiar old foe. They also discover a driving range golf ball picker vehicle.

Ton and Allen face-off against a shady buyer. The guys find a custom-built monowheel and a rifle designed to ward off grave robbers in the early 19th century.

Mutinies have remained rare over the centuries of naval history, but when they do happen they are highly charged and often inspiring events.

Some discoveries are anything but ordinary, like severed feet on a beach, or finding evidence of a tiny otherworldly creature. Each is weirder than the last.

Investigate a machine which can supposedly read personalities, a mask painted with human blood and a cursed pot.

How does a cabin seemingly defy gravity? And what is the origin of some frightening howls.

The Shame of Returning Alive: As Soviet forces push back, Goebbels calls for total war amid the devastation of German cities from Allied bombers.

Endless Numbers: A Soviet offensive pushes German forces 30km from the Polish border. On June 6, 1944, Operation Overlord is launched against Germany.

Physicist Bob Lazar says he was hired to reverse-engineer an alien spacecraft by the US government, with a fuel source that had the power to change the world.

Experts investigate whether aliens from a tiny star visited humans in the past, and left behind a clue that still remains in our language.

For years, people have claimed to have had direct, personal contact with aliens. The team tracks down some of those who claim to have had such contact.

Helen and Alex head to Sherwood Forest, the home of Robin Hood, to discover if he ever truly existed.

It's the River Avon for Rick and Beau's final stop of the series, where they stumble upon some Roman coins in their search for William the Conqueror's legacy.

Some discoveries are anything but ordinary, like severed feet on a beach, or finding evidence of a tiny otherworldly creature. Each is weirder than the last.

Investigate a machine which can supposedly read personalities, a mask painted with human blood and a cursed pot.

How does a cabin seemingly defy gravity? And what is the origin of some frightening howls.

The Shame of Returning Alive: As Soviet forces push back, Goebbels calls for total war amid the devastation of German cities from Allied bombers.

Endless Numbers: A Soviet offensive pushes German forces 30km from the Polish border. On June 6, 1944, Operation Overlord is launched against Germany.

Discover the myth of ancient Greece's most feared god. Hades takes us behind the veil of the ancient Greek belief in life after death with chilling tales.

Ancient Greece's most powerful god wages an epic struggle against his father for control of the universe. It's the ultimate clash in what is mythology's greatest showdown.

Physicist Bob Lazar says he was hired to reverse-engineer an alien spacecraft by the US government, with a fuel source that had the power to change the world.

Experts investigate whether aliens from a tiny star visited humans in the past, and left behind a clue that still remains in our language.

For years, people have claimed to have had direct, personal contact with aliens. The team tracks down some of those who claim to have had such contact.

Helen and Alex head to Sherwood Forest, the home of Robin Hood, to discover if he ever truly existed.

It's the River Avon for Rick and Beau's final stop of the series, where they stumble upon some Roman coins in their search for William the Conqueror's legacy.

Allen and Ton use their bidding skills to win two units at an auction in Denver. The guys find a vintage ice-resurfacing machine and a biathlon rifle.

Allen and Ton try to get the drop on their competition. They find some gold-mining machinery from the 1950s and a superfast amateur rocket.

Examine America's fantastic success stories against raiders, with brilliant tactics, bold crews and some mighty combat ships.

Imagine a man floating through the sky by dozens of balloons, or a cycling grandpa that proves to be no match for his youthful counterparts.

Examine claims Nostradamus predicted Hitler. Plus, learn about the canary resuscitator and a tiny object with the power to kill.

Explore a strange creature caught on camera and a sound so loud it covered the Equatorial Pacific.

The race to develop the first atomic bomb was critical amid the struggle for WWII victory. Experts reveal new evidence behind Germany's top-secret development of nuclear weapons.

In the final months of WWII, how close were the Nazis and Japan to creating the nuclear explosion that would win the war? Experts and historians examine the evidence.

From octopuses that can edit their DNA to jellyfish that can live forever, were the unusual creatures of our oceans delivered to Earth by aliens.

When Spanish Conquistadors obliterated the Mayan people's history, could they have erased proof of extraterrestrial visitors? Experts investigate.

This episode chronicles several close encounters with alien abductees who have been held captive, probed, examined and had objects implanted in their bodies.

A site on the Welsh border containing almost 1,000 skeletons reveals secrets about life during the Black Death.

The team find evidence from one of Scotland's bloodiest eras as they wade through the waters of the River Garry in the stunning Scottish Highlands.

Imagine a man floating through the sky by dozens of balloons, or a cycling grandpa that proves to be no match for his youthful counterparts.

Examine claims Nostradamus predicted Hitler. Plus, learn about the canary resuscitator and a tiny object with the power to kill.

Explore a strange creature caught on camera and a sound so loud it covered the Equatorial Pacific.

The race to develop the first atomic bomb was critical amid the struggle for WWII victory. Experts reveal new evidence behind Germany's top-secret development of nuclear weapons.

In the final months of WWII, how close were the Nazis and Japan to creating the nuclear explosion that would win the war? Experts and historians examine the evidence.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

Gas leaks turn suburbs into infernos and high-rise apartments crumble to the earth in an ominous look at the fate that awaits our homes post-apocalypse.

From octopuses that can edit their DNA to jellyfish that can live forever, were the unusual creatures of our oceans delivered to Earth by aliens.

When Spanish Conquistadors obliterated the Mayan people's history, could they have erased proof of extraterrestrial visitors? Experts investigate.

This episode chronicles several close encounters with alien abductees who have been held captive, probed, examined and had objects implanted in their bodies.

A site on the Welsh border containing almost 1,000 skeletons reveals secrets about life during the Black Death.

The team find evidence from one of Scotland's bloodiest eras as they wade through the waters of the River Garry in the stunning Scottish Highlands.

Allen is late, leaving Ton to battle a feisty auction buyer on his own. The guys find a fully functional flamethrower and a rare bow and arrow set.

Ton and Allen head to an auction in Ton's hometown and end up battling with a big-mouthed buyer. They discover a pair of tranquiliser dart guns.

Discover some of history's most ground-breaking vessels, from Britain's HMS Warrior of 1860 to the German battlecruisers of WWII.

Across the world, there are stories of treasures that have been lost for centuries. Could these ancient relics have been hidden by extraterrestrials.

Aliens And The Lost Ark: Experts on the extraterrestrial investigate the possibility of the religious relic being an alien artefact.

I Shall Never Look Back: At the beginning of 1942, war wages on the battlefields in Eastern Europe, North Africa and Asia Pacific.

Rattenkrieg: From Burma to China and war-torn Europe, battles rage on as Japan pushes in Asia and Hitler renews his assault on the Soviet Union.

As the Third Reich rises to power, Himmler fixates on the Holy Grail as his and the Nazis' desperation to capture this ancient relic intensifies.

Himmler's belief in the theory that the Himalayas were home to the Nazis' Aryan ancestors leads to an SS mission to the mountains.

Striking Distance: It's 1944 and Sgt Jack Werner is among the men storming the beaches of Leyte in the Philippines to liberate the POWs who have been stranded there.

Hours before the D-Day landing, a small group of American paratroopers were dropped behind enemy lines with a vital mission.

It's spring 1944 and on the Eastern Front, the momentum is firmly with allies as the war moves into its final, violent act.

a German breakout, a US bomber crew's Soviet secret and the Trojan Horse of Stalag Luft III.

A Russian soldier's daring escape from a Nazi death camp, a bold plan from a Japanese prison and pilots winning their enemies' respect.

As the Third Reich rises to power, Himmler fixates on the Holy Grail as his and the Nazis' desperation to capture this ancient relic intensifies.

Himmler's belief in the theory that the Himalayas were home to the Nazis' Aryan ancestors leads to an SS mission to the mountains.

The Shame of Returning Alive: As Soviet forces push back, Goebbels calls for total war amid the devastation of German cities from Allied bombers.

For thousands of years, wars and conflicts have been fought under the guise of religion. Rudolph Herzog discusses how faith has brewed conflict.

After Germany tries an all-out push to take Paris, America is forced to make hard decisions that will either break the Allies or turn the tide of war.

Across the world, there are stories of treasures that have been lost for centuries. Could these ancient relics have been hidden by extraterrestrials.