Investigate an intriguing 3,500-year-old box, a steam-powered gun and a monument that may have been an Aztec throne.

Considered one of the New Seven Wonders of the World, the Mayan City of Chichen Itza was the capital of a powerful civilisation.

Count down the top ten alien petroglyphs around the world, from strange figures to flying craft and carvings of what appear to be astronauts.

In the 1900s, a modern-day prophet Edgar Cayce became a worldwide sensation. He claimed to receive visions of both the past and future.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

The designer of one of the most popular car brands in history, Ferdinand Porsche would not have seen his success without the support of Adolf Hitler.

The team hunt for artefacts from World War II.

Dr Alice Roberts explores a secret location in the Cotswolds, which gives up a very precious and fragile artefact.

Slaver Ship Secrets: Ross Kemp is shocked by what he discovers as he dives on the wreck of a steam-age ship in north Devon, and a potential early slaver ship in Plymouth.

Gun Runners: Hearing about his great-grandfather who served in the Merchant Navy inspires Ross to explore the wreck of a WWII cargo ship and try to recover its military supplies.

Count down the top ten alien petroglyphs around the world, from strange figures to flying craft and carvings of what appear to be astronauts.

In the 1900s, a modern-day prophet Edgar Cayce became a worldwide sensation. He claimed to receive visions of both the past and future.

Archaeologists identify a site containing unknown structures. A lake full of jellyfish is studied and Argentinian researchers make a discovery.

Archaeologists find an ancient structure built on granite columns, puzzling stone spheres are found in Costa Rica and Mexican skeletal remains emerge.

The courageous story of a Jewish child who survived the Holocaust as the Nazi's youngest soldier, hiding his secret for years before finally discovering his true identity.

Fascinating new evidence reveals fresh clues about the whereabouts of King Solomon's mines - and the fabulous treasures said to be in them.

Desert War: The stories of the siege of Tobruk and the battle of El Alamein, the result of which saw the first serious defeat of the German army.

Hell in the Pacific: This episode remembers some of the thunderous naval battles which took place during the Pacific War.

Count down the top ten alien petroglyphs around the world, from strange figures to flying craft and carvings of what appear to be astronauts.

In the 1900s, a modern-day prophet Edgar Cayce became a worldwide sensation. He claimed to receive visions of both the past and future.

Fish remains found near an angry Sumatran volcano could suggest a new human migration route and a collapsed kingdom in Turkey gets discovered.

The team dig into artefacts from a Jamaican port sunk by a devastating earthquake. They take a peek at a Minoan landmark and inspect a treasure trove of English relics.

Scotland: Scotland has an area called the 'Falkirk Triangle', encompassing the village of Bonnybridge, which claims the highest concentration of UFO activity.

Every culture and religion on the planet believes that an evil one will usher in the end of days. But who is this Anti-Christ? And how can we hope to stop him.

We rely on machines for virtually every aspect of modern life. But is technology going too far, too fast? And will humans suffer the consequences.

The competitors look to mirrors for inspiration as they take a moment to reflect before creating pieces that represent how they see themselves.

In the tricky mystery box challenge, the competitors are tasked with creating different household items.

Specialists in the field of the extraterrestrial examine new evidence that suggests there was extraterrestrial intervention on Earth in the distant past.

Experts question whether the truth of our alien past could be buried in areas that, due to warfare or instability, are off-limits to exploration.

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.

Darrell Miklos and his team embark on a mission to solve one of history's most intriguing mysteries - the disappearance of the Nazi's looted WWII treasure.

Explore the men in charge whose rampant egos and misguided belief in their own abilities led to their country making fatal mistakes in the war.

Specialists in the field of the extraterrestrial examine new evidence that suggests there was extraterrestrial intervention on Earth in the distant past.

Experts question whether the truth of our alien past could be buried in areas that, due to warfare or instability, are off-limits to exploration.

Alice Roberts tours the East of England, seeking out the biggest archaeological digs of the year and witnessing the uncovering of a hugely significant Roman mosaic.

The south of England offers rich pickings, including the earliest money made in Britain and a massive haul of Roman treasure.

Discover the most incredible archaeology from the north of Britain, including Scotland's oldest railway and one of the best-preserved Norman castles.

Alice Roberts heads to the Midlands to take a look at the best archaeological finds from the heart of England.

Professor Alice Roberts heads to the West of England to showcase some of archelogy's greatest recent finds, including a new Roman town.

Did a UFO follow two researchers home from an investigation and how did a bear learn to act like a human.

Darrell Miklos and his team embark on a mission to solve one of history's most intriguing mysteries - the disappearance of the Nazi's looted WWII treasure.

Explore the men in charge whose rampant egos and misguided belief in their own abilities led to their country making fatal mistakes in the war.

Archaeologists study skeletal remains, uncovering stories of medieval life and ancient diseases like an unusual form of Paget's disease.

Step foot on the roller-coaster ride that is cracking humanity's most complex and important code - the Human Genome. Season finale.

Specialists in the field of the extraterrestrial examine new evidence that suggests there was extraterrestrial intervention on Earth in the distant past.

Experts question whether the truth of our alien past could be buried in areas that, due to warfare or instability, are off-limits to exploration.

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

Hugh and the team attempt to uncover a Roman fort, connected to Hadrian's Wall, that's buried beneath the back gardens of Benwell in Newcastle.

Alice Roberts tours the East of England, seeking out the biggest archaeological digs of the year and witnessing the uncovering of a hugely significant Roman mosaic.

Walk among colossal wonders scattered across the Earth's surface, including an ancient reptile skeleton, a massive head carving and a giant South African footprint.

North of Calgary, the guys visit a prolific collector with plenty of outbuildings and a sprawling graveyard of historic cars that capture Scott's attention.

Ancient Astronaut theorists suggest that aliens may have colonised an ice-free Antarctica, before a global event plunged it into the Ice Age.

Examining otherworldly artefacts as physical evidence of extraterrestrial visits, including a strange metal sphere that defies the laws of physics.

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

Treasure hunter Darrell Miklos' search for lost Nazi U-Boats takes an unexpected turn when a 98-year-old eyewitness gives him an incredible tip.

Explore how the seeds of Japan's defeat in 1945 were sown a decade earlier with the occupation of Manchuria in China.

Ancient Astronaut theorists suggest that aliens may have colonised an ice-free Antarctica, before a global event plunged it into the Ice Age.

Examining otherworldly artefacts as physical evidence of extraterrestrial visits, including a strange metal sphere that defies the laws of physics.

Near the Czech border, a secret German site, "The Giant," tests The Bell, powered by Serum 525, turning all who touch it into rotting living zombies.

1942 and Hitler has the totally barking idea of using educated dogs to do a soldier's job. The Nazi leader wants to create fearsome canines to help him win the Second World War.

Russian designer Nikolay decided to engineer a solution to trench warfare with an armoured vehicle with wheels that could move over any terrain.

Discover the true story of a German Luftwaffe pilot in World War II who risked his own life to save the crew of an American B-17 bomber.

Nazi scientists conducted brutal experiments for an Aryan master race, while zoologists ran their own bizarre trials.

Did a couple in Colorado spot Bigfoot from the window of a moving train.

Treasure hunter Darrell Miklos' search for lost Nazi U-Boats takes an unexpected turn when a 98-year-old eyewitness gives him an incredible tip.

Explore how the seeds of Japan's defeat in 1945 were sown a decade earlier with the occupation of Manchuria in China.

Leroy Schweitzer breaks away from the US and takes advantage of everyone that decides to follow him, resulting in a prolonged armed standoff in 1996.

Superweapons of Fear: From the world's largest trebuchet to Nazi super cannons, these are the deadly weapons that rain destruction and spread fear on the battlefield.

Ancient Astronaut theorists suggest that aliens may have colonised an ice-free Antarctica, before a global event plunged it into the Ice Age.

Examining otherworldly artefacts as physical evidence of extraterrestrial visits, including a strange metal sphere that defies the laws of physics.

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

Hugh and the team attempt to uncover a Viking burial ground hidden beneath Masham in North Yorkshire.

The south of England offers rich pickings, including the earliest money made in Britain and a massive haul of Roman treasure.

Walk along ancient pathways on Easter Island and discover designs carved into Asia's Eastern Steppe as you explore the planet's most puzzling structures.

The guys visit a garage sale devotee and then scour a sprawling outdoor antiques show where the prices are steep and one vendor is driving Scott nuts.

Through history, mankind has credited its existence to otherworldly beings. Could this be true? Can any proof be found in these early beliefs.

In the countryside of Wiltshire, England lies Rudloe Manor. A quaint manor house? Or epicentre of British UFO research since World War II.

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

After finding artefacts at a sunken pier, Darrell and his team discover a possible component of a secret weapon used by the Nazis.

Explore how the Axis Powers' ruthless, brutal occupation and exploitation of other countries contributed to their demise.

Through history, mankind has credited its existence to otherworldly beings. Could this be true? Can any proof be found in these early beliefs.

In the countryside of Wiltshire, England lies Rudloe Manor. A quaint manor house? Or epicentre of British UFO research since World War II.

Could aliens have already landed on Earth? Experts visit the Texas cemetery believed to hold the body of a life form that crashed there in 1897.

Experts search for proof of alien visitors in the ruins of lost civilisations. Could Mayan carvings reveal a city once ruled by otherworldly beings.

From gunpowder to missiles, were these lethal weapons the product of human innovation or created with help from another, otherworldly source.

Experts scrutinise prehistoric ruins, asking whether humans could have built these advanced structures alone. Might they have had alien help.

Ancient alien theorists explore the origins of mythical gods. Could these tales of superhuman beings be based on sightings of extraterrestrials.

Is famous footage of the Mississippi Bigfoot the real deal.

After finding artefacts at a sunken pier, Darrell and his team discover a possible component of a secret weapon used by the Nazis.

Explore how the Axis Powers' ruthless, brutal occupation and exploitation of other countries contributed to their demise.

For decades, residents in Nova Scotia have reported munitions washing up on their shores - believed to have come from the wreck of the SS Clare Lilley.

Science reveals new insights into belief and superstition in the land of the Pharaohs, from finding the long-lost 'Land of Punt' to Tutankhamun.

Through history, mankind has credited its existence to otherworldly beings. Could this be true? Can any proof be found in these early beliefs.

In the countryside of Wiltshire, England lies Rudloe Manor. A quaint manor house? Or epicentre of British UFO research since World War II.

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

Hugh and the team unearth William the Conqueror's lost priory hidden beneath Lenton in Nottingham.

Discover the most incredible archaeology from the north of Britain, including Scotland's oldest railway and one of the best-preserved Norman castles.

Explore some of the most cavernous places on the planet, including a mysterious Siberian crater and Greenland's bizarre black holes.

In PEI, the guys hit a 70-mile garage sale set up clear across the island. While Sheldon eats fresh oysters, Scott searches for treasure.

Ancient Astronaut theorists examine the creation myth of "The Cosmic Egg", and look at why the concept is so pervasive throughout the world.

Why do many ancient architectural wonders bear similarities despite being built by different civilisations? Could aliens have designed them.

Part One: Hear about the personal rivalry between Winston Churchill and Adolf Hitler, exploring how their exploits in World War I shaped their future commands.

Darrell and the team attempt a risky strategy when weather prevents them from diving from the boat. Meanwhile, Garth makes a solo journey to a deserted island.

Victory in war doesn't just require sound military strategy, vital resources and equipment are also critical. Discover how the Axis powers failed in this regard.

Ancient Astronaut theorists examine the creation myth of "The Cosmic Egg", and look at why the concept is so pervasive throughout the world.

Why do many ancient architectural wonders bear similarities despite being built by different civilisations? Could aliens have designed them.

The face of Christ is discovered in a field in Hungary and a photo that claims to show who shot down a passenger jet in Ukraine.

We investigate one natural phenomenon, four shapes that resemble human origin and monitor one example of human origin and current destruction.

Satellite images could explain desert ruins rumoured to be an entrance to an underworld and a city-sized chunk of ice suddenly disappears in Antarctica.

A giant carving of a strange creature suddenly appears in the Australian Outback and mysterious bright green lights illuminate the seas around Thailand.

Strange black holes appear near Egypt's ancient pyramids and a mysterious red swarm invades a beach in India.

Was a UFO tracking an American fighter plane? The team of experts examines the evidence to find the truth.

Darrell and the team attempt a risky strategy when weather prevents them from diving from the boat. Meanwhile, Garth makes a solo journey to a deserted island.

Victory in war doesn't just require sound military strategy, vital resources and equipment are also critical. Discover how the Axis powers failed in this regard.

The story of Hitler's dysfunctional home life. His parents were closely related, and in his adult years, he was rumoured to have engaged in incest himself.

Discover the many lovers of Adolf Hitler - uncovering the unfortunate demise of all who dared resist his love, affection and sexual appetite.

Ancient Astronaut theorists examine the creation myth of "The Cosmic Egg", and look at why the concept is so pervasive throughout the world.

Why do many ancient architectural wonders bear similarities despite being built by different civilisations? Could aliens have designed them.

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

Hugh and the team attempt to uncover a secret World War military base on the clifftops of South Shields.

Alice Roberts heads to the Midlands to take a look at the best archaeological finds from the heart of England.

Uncover a perfect circle carved around an ancient peak, a scary phenomenon in the Pacific and strange shapes in a Middle Eastern desert.

who will find the ultimate East Coast prize.

As we look forward to the first astronauts reaching Mars in the next 20 years, is there evidence to suggest human life was first seeded there.

Could a curse really exist on Tutankhamun's tomb, but in the form of alien technology designed to protect an incredible secret about our past.

Part Two: Through archive footage, see how these radically different characters clashed in a fascinating subplot of World War II.

Treasure hunter Darrell Miklos and his team make a discovery far older than they expected, with new evidence later suggesting a significant find.

In our final episode, we examine how each Axis Power had troubles on their own home front, leading to disaster in the final days of the war.

As we look forward to the first astronauts reaching Mars in the next 20 years, is there evidence to suggest human life was first seeded there.

Could a curse really exist on Tutankhamun's tomb, but in the form of alien technology designed to protect an incredible secret about our past.

The story of the World War II aircraft carrier USS Enterprise. Join her as she sets sail in the Pacific on a mission to sink enemy submarines.

Amazing CGI graphics tell the story of how the USS Enterprise and sister carriers Yorktown and Hornet turned the tide of the Pacific battle during WWII.

The American Navy is on the offensive and the first strike is on the Solomon Islands. Join the USS Enterprise as it supports the first American invasion.

Follow a battle for survival in a terrible day of vicious WWII combat, when the USS Enterprise lost many of her crew and her sister ship, the USS Hornet.

The USS Enterprise is the only battle-ready American carrier in the Pacific. For her crew, the war has never been more personal when the Japanese attack.

Is a mysterious object moving through the sky a UFO disguised as a cloud.

Treasure hunter Darrell Miklos and his team make a discovery far older than they expected, with new evidence later suggesting a significant find.

In our final episode, we examine how each Axis Power had troubles on their own home front, leading to disaster in the final days of the war.

Explore mysterious secrets hidden in tunnels, caves and burial sites, from lost treasures to ancient manuscripts behind walls.

Explore millennia of end-of-world theories, from Revelation and Nostradamus to a mysterious blue star. Could any of these apocalyptic visions come true.

As we look forward to the first astronauts reaching Mars in the next 20 years, is there evidence to suggest human life was first seeded there.

Could a curse really exist on Tutankhamun's tomb, but in the form of alien technology designed to protect an incredible secret about our past.

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

Hugh and the team search for a Roman settlement under the back gardens of Florence Road in Maidstone, Kent.

Professor Alice Roberts heads to the West of England to showcase some of archelogy's greatest recent finds, including a new Roman town.

Decode the secrets of long-lost human settlements, uncovering a Norwegian mound, a prehistoric stone circle and a lost city in the cradle of civilisation.

The guys are freestyling in Nova Scotia when they stumble across an old Victorian home that's ripe for picking.

Count down the top ten mysteries of the deep, from sunken continents to supposed proof of the lost city of Atlantis.

Explore whether the Gods of Greece including Zeus, Apollo and Poseidon, were actually extra-terrestrial visitors to Earth.

Explore the men in charge whose rampant egos and misguided belief in their own abilities led to their country making fatal mistakes in the war.

Explore how the seeds of Japan's defeat in 1945 were sown a decade earlier with the occupation of Manchuria in China.

In 1923, Adolf Hitler led the infamous Beer Hall Putsch, an attempt to take power in Germany by force. It was a day that would change the world forever, birthing Hitler's regime.

Alice Roberts tours the East of England, seeking out the biggest archaeological digs of the year and witnessing the uncovering of a hugely significant Roman mosaic.

The south of England offers rich pickings, including the earliest money made in Britain and a massive haul of Roman treasure.

Discover the most incredible archaeology from the north of Britain, including Scotland's oldest railway and one of the best-preserved Norman castles.

Count down the top ten mysteries of the deep, from sunken continents to supposed proof of the lost city of Atlantis.

Explore whether the Gods of Greece including Zeus, Apollo and Poseidon, were actually extra-terrestrial visitors to Earth.

War Beneath The Waves: From early beginnings in the American War of Independence to modern day, this is the story of the submarine and its role in naval warfare.

Veterans and historians tell the story of the Thai-Burma railway and the countless prisoners of war and slave labourers who lost their lives building it.

Examining the machines used by the iconic military unit "The Desert Rats" in the North African desert campaign of World War 2.

In 1415, the finest French chivalry met at Azincourt. Exhausted and outnumbered, the army of King Henry V of England was easy prey - but it all went wrong.

In 52 BC, after eight years of warfare in Gaul, Julius Caesar and his legions laid siege to Gergovia - but he faced a coalition of all the Gallic tribes.

The Gates of Hell 1941-1942: In the shadow of the war, the Nazi regime gradually advances its "final solution to the Jewish problem", culminating in the Holocaust.

Genocide 1942-1944: Along with Treblinka and Majdanek, Sobibor was one of the camps used in Operation Reinhard, in which the Nazis murdered almost two million people.

Count down the top ten mysteries of the deep, from sunken continents to supposed proof of the lost city of Atlantis.

Explore whether the Gods of Greece including Zeus, Apollo and Poseidon, were actually extra-terrestrial visitors to Earth.

Part One: Hear about the personal rivalry between Winston Churchill and Adolf Hitler, exploring how their exploits in World War I shaped their future commands.

An exploration into the origins of humans' complex and fascinating relationship with the skies, from the earliest ancestors to the birth of science.

Examining the machines used by the iconic military unit "The Desert Rats" in the North African desert campaign of World War 2.

Examine a hat emblazoned with teeth, a box with the power to kill and a golden quiver from a Macedonian tomb.

The most monumental ancient sculpture in the world, the half-man, half-lion Sphinx arouses the curiosity of the entire planet - but how was such a huge structure built.

In the 21st century, UFOs have gone from fringe science to mainstream obsession. Are we getting closer to understanding the strange events in the sky.

For millennia, people have believed that everyday objects can possess hidden energy. These talismans are seen to provide protection and good fortune.

Explore how the Axis Powers' ruthless, brutal occupation and exploitation of other countries contributed to their demise.

Victory in war doesn't just require sound military strategy, vital resources and equipment are also critical. Discover how the Axis powers failed in this regard.

In our final episode, we examine how each Axis Power had troubles on their own home front, leading to disaster in the final days of the war.

Alice Roberts heads to the Midlands to take a look at the best archaeological finds from the heart of England.

Professor Alice Roberts heads to the West of England to showcase some of archelogy's greatest recent finds, including a new Roman town.

Join a voyage to Farne Islands, home to seals and seabirds, early Christian communities and one of the first landing sites for the terrifying Viking raiders.

In the 21st century, UFOs have gone from fringe science to mainstream obsession. Are we getting closer to understanding the strange events in the sky.

For millennia, people have believed that everyday objects can possess hidden energy. These talismans are seen to provide protection and good fortune.

In Madagascar, paleontologists discover an near-perfect fossil unlike any known animal, and bizarre stone spheres are found in Costa Rica.

In the depths of the tropical lowlands of Northern Colombia, scientists discover a gargantuan, unidentified animal vertebra.

The story of the World War II aircraft carrier USS Enterprise. Join her as she sets sail in the Pacific on a mission to sink enemy submarines.

Five Bronze Age bodies found in a Kent pit. One old woman is posed pointing at something. The team investigates what and why.

A new report is made every 55 hours in Washington state, which is America's highest rate of UFO sightings per capita - but why are UFOs choosing to hover here.

Eastern Front: The decision by Hitler to send his armies east into Russia was probably the most significant of the war.

D-Day and Liberation: 6th June 1944, the day that British, US and Canadian troops were sent across the English Channel to begin the job of reclaiming continental Europe.

In the 21st century, UFOs have gone from fringe science to mainstream obsession. Are we getting closer to understanding the strange events in the sky.

For millennia, people have believed that everyday objects can possess hidden energy. These talismans are seen to provide protection and good fortune.

Part Two: Through archive footage, see how these radically different characters clashed in a fascinating subplot of World War II.

From flat earth legends to Galileo's telescope, explore the major changes in humans' scientific understanding of planet Earth throughout history.

Phoenix Lights: In Phoenix, a mass UFO sighting took place. Thousands witnessed a series of bright orbs overhead. Craig and Sarah take on the extraordinary case.

Discover the locations of stargate portals around the world. Thought to be doorways to wormholes in time, who is battling to open them and why.

Discover the secrets surrounding the ten biggest and most mysterious conspiracies in history, including the goings-on at Area 51.

In this episode, each competitor is tasked with creating their very own original cartoon character made of glass.

In this episode, each competitor is tasked with creating a special piece inspired by the phenomenon of climate change.

Ancient Astronaut theorists suggest that aliens have been guiding mankind in secret to bring about huge leaps in technological advancement.

Examining claims that extraordinary discoveries are being ignored by the scientific community for not conforming to their accepted paradigm.

The Seeds of Violence 1918-1922: In the wake of the First World War, Adolf Hitler identifies Benito Mussolini as his model and has one ultimate goal: to gain power in Germany.

Racing an incoming hurricane, Darrell and his team are forced to make tough choices - but they finally locate the source of a massive magnetometer hit.

During WWII, the French Resistance seeks aid from SOE. Led by Vera Atkins, Odette Sansom and Noor Inayat Khan fight the Nazis, risking it all for victory.

Ancient Astronaut theorists suggest that aliens have been guiding mankind in secret to bring about huge leaps in technological advancement.

Examining claims that extraordinary discoveries are being ignored by the scientific community for not conforming to their accepted paradigm.

Another visit to the north for Alice, checking out evidence of early writing by the Picts in Scotland and a 3,000-year-old Bronze Age coffin.

Excavations in southern England uncover a lost Roman town, a Tudor ship and evidence of Henry VIII's financial forgery at the Tower of London.

In the west of the UK, explore a spectacular monument older than Stonehenge, a 200-year-old mine trapped in time and a lost medieval friary.

Explore a gatehouse full of Civil War bullets, an Iron Age shield made from bark and Roman burials with pots where the heads should be.

Alice Roberts reveals a Dutch ship sunk by the English, a Cornish Roman fort and a 5,000-year-old Neolithic monument.

The team investigate a legendary man-eating croc, glowing lights in Mexico and chilling footage of a pair of dogs.

Racing an incoming hurricane, Darrell and his team are forced to make tough choices - but they finally locate the source of a massive magnetometer hit.

In a world without humans, water turns from life-giver to destroyer, flooding cities, collapsing dams and triggering ancient forces long kept at bay.

Is a picture taken in the 1890s the first Bigfoot photo ever.

Tony Harris breaks down the most shocking moments ever caught on camera.

Ancient Astronaut theorists suggest that aliens have been guiding mankind in secret to bring about huge leaps in technological advancement.

Examining claims that extraordinary discoveries are being ignored by the scientific community for not conforming to their accepted paradigm.

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

Hugh and the experts attempt to uncover a lost Roman fort connected to the Antonine Wall, buried beneath the gardens of the quiet streets of Falkirk.

Another visit to the north for Alice, checking out evidence of early writing by the Picts in Scotland and a 3,000-year-old Bronze Age coffin.

See a giant glacier on Mars, milky seas near Java, a hexagon over Saturn and a doughnut-shaped lake in Saskatchewan.

Sheldon Smithens and Scott Cozens travel across the country looking for hidden treasures and antiques in people's basements, sheds, attics and barns.

As science turns towards augmenting humanity with technology, theorists suggest that we are merely following the path of our alien creators.

The ancient metropolis of Teotihuacan, called The City of The Gods by the Aztecs, is a site of great mystery. Could alien beings have once lived there.

Deceit and Delusion 1923-1928: Hitler appears to be eliminated after his failed putsch in 1923. Discover how the Nazi movement used democracy's tolerance in Germany to come back.

World War II breaks out and a force of U-boats attempt to starve Britain into submission. Meanwhile, Vera Laughton Mathews recruits talented women into the Wrens.

Vera enlists Violette Szabo and Yvonne Baseden. With circuits failing and Noor at risk, treachery allegations harm preparations for the Allied invasion.

As science turns towards augmenting humanity with technology, theorists suggest that we are merely following the path of our alien creators.

The ancient metropolis of Teotihuacan, called The City of The Gods by the Aztecs, is a site of great mystery. Could alien beings have once lived there.

Near the Czech border, a secret German site, "The Giant," tests The Bell, powered by Serum 525, turning all who touch it into rotting living zombies.

A 23-year-old Hitler, living hand-to-mouth as a painter in Vienna, Austria, discovers a sacred spear in the city's Hofburg Museum.

In 1943, the inmates of the Death Camp at Sobibor staged an organised rebellion against their Nazi oppressors.

Near the Czech border, a secret German site, "The Giant," tests The Bell, powered by Serum 525, turning all who touch it into rotting living zombies.

1942 and Hitler has the totally barking idea of using educated dogs to do a soldier's job. The Nazi leader wants to create fearsome canines to help him win the Second World War.

The team examine a strange UFO sighting, the sudden appearance of a red sea and possible proof of a Yeti.

World War II breaks out and a force of U-boats attempt to starve Britain into submission. Meanwhile, Vera Laughton Mathews recruits talented women into the Wrens.

During WWII, the French Resistance seeks aid from SOE. Led by Vera Atkins, Odette Sansom and Noor Inayat Khan fight the Nazis, risking it all for victory.

Vera enlists Violette Szabo and Yvonne Baseden. With circuits failing and Noor at risk, treachery allegations harm preparations for the Allied invasion.

The 1717 wreck of Black Sam Bellamy's pirate ship Whydah yields treasure, skeletons and new insights into the hidden world of piracy.