Explore the huge Nazca lines that were made over 2,000 years ago and are still a mystery to researchers today.

Decoding a lost civilization reveals the monumental challenge undertaken by some of the academic world's most brilliant minds.

Do the reported discoveries of towering, human-like skeletons reveal that the world was once inhabited by giants.

Throughout the world, ancient objects have been found that leave archaeologists at a loss. What do they reveal about the world we live in today.

Studies show 70% of UFO sightings occur in 'hotspots', where unusual phenomena is regularly reported. Is there something about these places that attracts visitors.

Discover the key role scientific pioneers played in reshaping our solar system. Plus, learn how technology helped humans explore its furthest reaches.

Rocks appear to magically move across a dry lakebed in America, while a major discovery is made in China's Ordos Desert.

Do the reported discoveries of towering, human-like skeletons reveal that the world was once inhabited by giants.

Throughout the world, ancient objects have been found that leave archaeologists at a loss. What do they reveal about the world we live in today.

Walt Disney overcomes obstacles to create the first theme park, where instead of thrill rides, the visitor enjoys an immersive journey into a story.

Mysterious industrial waste is discovered in an uninhabited part of Greenland. Meanwhile, strange mounds are found deep within the Arctic Circle.

Taylor unearths new testimony from a witness to Slumach's execution and a deathbed letter sends Adam and Kru on a dangerous glacial trek.

Discover a trail of moving objects in the ice of Antarctica, evidence of one of Joseph Stalin's most insane schemes and a code in the Sonoran Desert.

Alice Roberts explores Manchester's history of protest and rebellion during the Industrial Revolution, from Marx to the Suffragettes.

Ireland: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Finds from the East include a monument as old as Stonehenge and some disturbing Roman burials.

Alice Roberts follows archaeologists as they excavate Iron Age Britain's most spectacular grave - a Yorkshire chariot burial.

An Air Force Police Officer sees a strange aircraft near a shimmering light before developing skin cancer. Were the events related? Later, a staff sergeant sees a shadowy figure.

An indigenous woman's testimony claims to know where Slumach found his gold. After returning from the expedition empty-handed, a vision has Kru rattled.

A female con artist manipulates another woman into breaking their significant others out of a Correctional Facility with a hijacked helicopter.

Do the reported discoveries of towering, human-like skeletons reveal that the world was once inhabited by giants.

Throughout the world, ancient objects have been found that leave archaeologists at a loss. What do they reveal about the world we live in today.

Studies show 70% of UFO sightings occur in 'hotspots', where unusual phenomena is regularly reported. Is there something about these places that attracts visitors.

Raven Master Chris must introduce a new bird to the Tower's enclosure, while Constable Nicholas is in charge of the room where Guy Fawkes was interrogated.

The Georgians: Amanda learns the customs of a true society girl, while Dan makes his own animal intestine condom and discovers how many brothels existed in London at the time.

A female con artist manipulates another woman into breaking their significant others out of a Correctional Facility with a hijacked helicopter.

More than 10,000 crop circle formations have been documented and many display properties that defy explanation. Could they be of otherworldly origin.

The discovery of the ancient Karahan Tepe megalithic site, displaying perplexing engineering skills, turns the archaeology world on its head.

Scholars identify Egypt's obelisks as monuments to the pharaohs, while ancient astronaut theorists suggest they may power communication with the gods.

Ten glassblowers take up the challenge to make a piece of art that represents who they are, by using photographs from their past.

The remaining contestants create masterpieces such as a bento box and a glass taco stand in a food-themed challenge.

A major archaeological discovery in Egypt might be connected to the pyramids. Meanwhile, a strange formation is investigated in the Sahara.

More than 10,000 crop circle formations have been documented and many display properties that defy explanation. Could they be of otherworldly origin.

The discovery of the ancient Karahan Tepe megalithic site, displaying perplexing engineering skills, turns the archaeology world on its head.

A strange structure discovered in the Gobi Desert could reveal the whereabouts of lost treasure - changing everything we know about Genghis Khan.

France falls in 1940 and Donitz's U-boats embark on a race to sink British merchant ships. Roberts' wargaming ideas are at last entertained by a desperate Admiralty.

The Vikings: Comedian John Thomson and historian Janina Ramirez join Al to explore the truth about Vikings and how they were so successful in Britain.

An indigenous woman's testimony claims to know where Slumach found his gold. After returning from the expedition empty-handed, a vision has Kru rattled.

When a strange plane is discovered near the sight of the Roswell UFO incident, experts wonder if the aircraft has Nazi or extraterrestrial origins.

Surveillance footage from China records a man surviving a lightning strike, not once but twice. In a remote valley in Norway, cameras track mysterious lights.

Discover the fate of the SS Cap Arcona, a former luxury ship turned prisoner transport vessel that became the target of an RAF squadron attack.

The Search for the Loch Ness Monster: Andy joins a team of Nessie experts to carry out the biggest search for the Loch Ness Monster in 50 years.

When millions over the world vanish, a biblical prophecy known as the Rapture will be fulfilled. Are there signs of the prediction actually happening.

The British Empire was once the largest the world has ever seen, but by 1970 it had all but vanished. Relive the final decades of the Empire in colour for the first time.

From flying saucers to killer drones, discover the out-of-this-world technology the US military is using to conquer the globe.

Strange light patterns are seen in Texas. In France, a man's knee injury is suddenly healed after an odd encounter.

More than 10,000 crop circle formations have been documented and many display properties that defy explanation. Could they be of otherworldly origin.

The discovery of the ancient Karahan Tepe megalithic site, displaying perplexing engineering skills, turns the archaeology world on its head.

Scholars identify Egypt's obelisks as monuments to the pharaohs, while ancient astronaut theorists suggest they may power communication with the gods.

The British Empire was once the largest the world has ever seen, but by 1970 it had all but vanished. Relive the final decades of the Empire in colour for the first time.

Ann encounters diseased ghosts from the Victorian era at her small-town hospital. Nurse Cheyenne encounters a horrifying ghost that haunts her facility.

When millions over the world vanish, a biblical prophecy known as the Rapture will be fulfilled. Are there signs of the prediction actually happening.

What if every human on Earth disappeared? Discover what would happen to the world we have created, including our animals, buildings, landscape and bodies.

What would happen to Earth if all humans vanished? Outbreak examines the possibility of escaped animals, invasive vines and a deadly virus taking over control from humans.

Discover the Aztec king's glittering treasure that vanished into thin air, inspiring a 500-year search spanning continents.

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.

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.

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 explore a Hindu scripture describing a huge flying creature that landed on Earth. Could this monster have been an alien craft from outer space.

Wales: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

An awe-inspiring year of archaeological digs with Dr Alice Roberts. Roman finds include an amazing coin hoard and a man buried on a pile of dead animals.

Humans are found to have lived in Britain earlier than thought when tools are unearthed in Norfolk, while some of our ancestors' customs are revealed at another dig.

What if every human on Earth disappeared? Discover what would happen to the world we have created, including our animals, buildings, landscape and bodies.

What would happen to Earth if all humans vanished? Outbreak examines the possibility of escaped animals, invasive vines and a deadly virus taking over control from humans.

Discover the Aztec king's glittering treasure that vanished into thin air, inspiring a 500-year search spanning continents.

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.

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.

The El Chapo Years: Sinaloa and El Chapo aim to be the world's largest drug cartel, but their success is threatened by authorities.

The Gotti Years: When John Gotti, a capo from the Bronx, becomes fed up with the greed of his boss, Paul Castellano, he orchestrates a mob hit.

Agents Jay Dobyns and Jenna Maguire go undercover to infiltrate the Hells Angels - but the dream of being a fully patched member pushes Jay to the edge.

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 explore a Hindu scripture describing a huge flying creature that landed on Earth. Could this monster have been an alien craft from outer space.

Wales: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

An awe-inspiring year of archaeological digs with Dr Alice Roberts. Roman finds include an amazing coin hoard and a man buried on a pile of dead animals.

Humans are found to have lived in Britain earlier than thought when tools are unearthed in Norfolk, while some of our ancestors' customs are revealed at another dig.

The troubled beginnings and amazing exploits of the legendary British heavy bomber. Plus, see a replica up close.

A filthy 1981 Camaro Z28 needs a major transformation to get it back on the road and a 1972 Ford Maverick with sentimental value must be revitalised.

A minivan bursting at the seams with melted crayons, hay and trash has to be scrubbed, decontaminated and sanitised to be returned to its former glory.

What would happen if all humans vanished? Would LA's palm trees spark a huge inferno? What would become of New York? And which animals would take control from man.

If people disappeared from Earth, what would happen to metallic objects? Would bridges and buildings collapse? And what would become of the US's secret stash of gold.

Investigate the mystery of the Garden of Eden - was it real, or just a place created to explain the story of human creation.

Democracy Without Democrats 1929-1933: A protest turns into a racist and anti-Jewish movement during the 1920s and the NSDAP use emotions to gain the loyalty of the people.

The Racial State 1933-1934: President Hindenburg suspends freedom of speech and Hitler comes to power in 1933. The first concentration camps for political opponents are set up.

Experts explore evidence suggesting Mecca's Grand Mosque and Jerusalem's Temple Mount were the ancient meeting places of man and extraterrestrials.

Experts examine beliefs that a French church provides a gateway to another universe. Plus, could the Sphinx be built on a library left by aliens.

Ireland: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

In Northumbria, skeletons tell tales of violent death and tenderness, and people curate grave goods in an amazing community project.

Dr Alice Roberts pays tribute to the Bard, visiting Shakespeare's first theatre in London's Shoreditch and sifting through the poet's rubbish.

What would happen if all humans vanished? Would LA's palm trees spark a huge inferno? What would become of New York? And which animals would take control from man.

If people disappeared from Earth, what would happen to metallic objects? Would bridges and buildings collapse? And what would become of the US's secret stash of gold.

Investigate the mystery of the Garden of Eden - was it real, or just a place created to explain the story of human creation.

Democracy Without Democrats 1929-1933: A protest turns into a racist and anti-Jewish movement during the 1920s and the NSDAP use emotions to gain the loyalty of the people.

The Racial State 1933-1934: President Hindenburg suspends freedom of speech and Hitler comes to power in 1933. The first concentration camps for political opponents are set up.

Explore the Mary Celestia wreck, discover imperial relics from Iraq, a medieval man's remains and lost artefacts reshaping Native American history.

Explore Seahenge's timber circle, a Ukrainian canoe, ancient remains in a mudslide and a relic from Lake Mead's dry bed.

Experts explore evidence suggesting Mecca's Grand Mosque and Jerusalem's Temple Mount were the ancient meeting places of man and extraterrestrials.

Experts examine beliefs that a French church provides a gateway to another universe. Plus, could the Sphinx be built on a library left by aliens.

Ireland: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

In Northumbria, skeletons tell tales of violent death and tenderness, and people curate grave goods in an amazing community project.

Dr Alice Roberts pays tribute to the Bard, visiting Shakespeare's first theatre in London's Shoreditch and sifting through the poet's rubbish.

A look at the later, clipped wing version flown by Czech refugee pilots in the UK during World War II. Plus, a tour of a restored example.

A waterlogged Jeep Cherokee requires a major rescue after years of neglect and a snake-infested Plymouth Duster needs a new lease of life.

A Packard filled with dead rodents must be given a makeover to make a profit. A neglected 1989 Porsche Carrera covered in grime needs to be handled with care.

In a world void of people, pythons begin to challenge alligators for control of the Everglades. Elsewhere, Shanghai sinks under the weight of its empty skyscrapers.

Discover what would happen to priceless artefacts such as the Mona Lisa, the Declaration of Independence and the Liberty Bell if humans were no longer around.

Scientists and theologians are still trying to figure out if the Shroud of Turin truly is an image of Jesus - or something very different.

Hidden In Plain Sight 1935-1938: In 1934, Hitler's government is firmly in the saddle. Most Germans support Hitler's anti-Jewish policy and the regime's terror soon escalates.

Up in Flames 1936-1940: At the end of 1939, the German Army invades Poland. Examine how Hitler succeeded in pushing through his rearmament and war plans relatively unhindered.

Experts question whether the notion of rituals, such as funerals and festivals, was brought to earth by ancient extraterrestrial visitors.

Experts investigate an ancient fortress in Peru said to have been built with laser tools. Could it prove that aliens once visited Earth.

Pentagon: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

A newly discovered town in Devon turns history on its head and there's a shocking find by the Thames - almost 100 baby skeletons.

Dr Alice Roberts visits excavations in Orkney and York on the hunt for Viking relics. Finds include an amazing collection of silver and gold.

In a world void of people, pythons begin to challenge alligators for control of the Everglades. Elsewhere, Shanghai sinks under the weight of its empty skyscrapers.

Discover what would happen to priceless artefacts such as the Mona Lisa, the Declaration of Independence and the Liberty Bell if humans were no longer around.

Scientists and theologians are still trying to figure out if the Shroud of Turin truly is an image of Jesus - or something very different.

Hidden In Plain Sight 1935-1938: In 1934, Hitler's government is firmly in the saddle. Most Germans support Hitler's anti-Jewish policy and the regime's terror soon escalates.

Up in Flames 1936-1940: At the end of 1939, the German Army invades Poland. Examine how Hitler succeeded in pushing through his rearmament and war plans relatively unhindered.

Birth Of A Dynasty: Discover how, for the past few thousand years, this mighty ruler has remained a caricature of his own propaganda.

Uncover the story of the SS Atlantic's deadly 1873 crash through intriguing stories and 3D recreations of the wreck.

Experts question whether the notion of rituals, such as funerals and festivals, was brought to earth by ancient extraterrestrial visitors.

Experts investigate an ancient fortress in Peru said to have been built with laser tools. Could it prove that aliens once visited Earth.

Pentagon: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

A newly discovered town in Devon turns history on its head and there's a shocking find by the Thames - almost 100 baby skeletons.

Dr Alice Roberts visits excavations in Orkney and York on the hunt for Viking relics. Finds include an amazing collection of silver and gold.

The Luftwaffe's Frontline Fighter: The astonishing story of the 109 and its modified variants, best known for its role in the Battle of Britain.

A crusty old Pontiac Silver Streak must be taken from rags to riches, while an extremely rare but rusted Chrysler 300 Hurst needs an extensive polish and shine.

A forgotten Rolls-Royce gets the royal treatment and becomes a rolling beauty once more, while a Ford pickup is resurrected after being hidden in a barn.

With no humans around, discover the fate of Las Vegas and Atlantic City, where the ocean would tear apart casinos and a new rat pack would take over.

Discover the fate of mankind's machinery of war in a world with no people, in which Pearl Harbor comes under renewed attacks, and snow causes urban avalanches.

In 1698, Captain William Kidd seized a ship's treasure - but was hanged before he could reveal its whereabouts. What came of the Captain's lost booty.

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.

Experts investigate reports of strange bronze flying ships spotted during the Black Death. Could aliens have brought deadly disease to Earth.

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

Rendlesham: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Dr Alice Roberts discovers what Britain was like before the Romans as she examines fascinating finds from the Bronze and Iron Ages.

Alice Roberts learns more about mankind's Stone Age ancestors, and travels to Jersey to meet a team hoping to shed new light on the Neanderthals.

With no humans around, discover the fate of Las Vegas and Atlantic City, where the ocean would tear apart casinos and a new rat pack would take over.

Discover the fate of mankind's machinery of war in a world with no people, in which Pearl Harbor comes under renewed attacks, and snow causes urban avalanches.

In 1698, Captain William Kidd seized a ship's treasure - but was hanged before he could reveal its whereabouts. What came of the Captain's lost booty.

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.

Journey back to 885, when a small army in Paris repelled the Vikings, who had ravaged everything in their path while travelling up the Seine.

Examine how the strategy of encirclement devised by Hannibal left 50,000 Romans dead on the battlefield of Apulia on August 2, 216 BC.

Experts investigate reports of strange bronze flying ships spotted during the Black Death. Could aliens have brought deadly disease to Earth.

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

Rendlesham: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Dr Alice Roberts discovers what Britain was like before the Romans as she examines fascinating finds from the Bronze and Iron Ages.

Alice Roberts learns more about mankind's Stone Age ancestors, and travels to Jersey to meet a team hoping to shed new light on the Neanderthals.

Superfortress: The story of the prolonged development and the initially troubled operational history of the Boeing B29 Superfortress.

A maggot-infested pickup crawls into the shop and rises from the dead before a vandalised Mercedes arrives on the scene.

In North Carolina, Jaime lets Caleb take charge for the day. Meanwhile, in Minnesota, a beat up Chevy Impala gets all wrapped up and ready to roar.

What is the fate of our cars, planes and roads? What part would armadillos play in a future without people? And how do abandoned oil refineries threaten major disaster.

Water gives life, but it can also destroy. Discover how, in a world without people, rain submerges New Orleans and corrosion topples Seattle's Space Needle.

Discover one of history's most brazen prison breaks. With only a handful of clues, the search for the infamous Alcatraz escapees continues to this day.

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.

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

Experts investigate creepy places associated with death. Could otherworldly connections be responsible for strange disappearances and suicides.

Scotland: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Alice Roberts and Matt Williams present more outstanding archaeology. In the east of Britain, sites include Must Farm, Colchester, Oakington, Lyminge and Silchester.

Alice Roberts and Matt Williams visit the Dorset Country Museum, where they explore finds from archaeological digs across the west of Britain.

What is the fate of our cars, planes and roads? What part would armadillos play in a future without people? And how do abandoned oil refineries threaten major disaster.

Water gives life, but it can also destroy. Discover how, in a world without people, rain submerges New Orleans and corrosion topples Seattle's Space Needle.

Discover one of history's most brazen prison breaks. With only a handful of clues, the search for the infamous Alcatraz escapees continues to this day.

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.

Experts investigate the methods that Adolf Hitler and the Nazis used to indoctrinate a peaceful population, turning it into a finely-tuned war machine.

A full-page illustration of the Devil and hellish rumours gave the Devil's Bible its nickname, but who really wrote this book.

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

Experts investigate creepy places associated with death. Could otherworldly connections be responsible for strange disappearances and suicides.

Scotland: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Alice Roberts and Matt Williams present more outstanding archaeology. In the east of Britain, sites include Must Farm, Colchester, Oakington, Lyminge and Silchester.

Alice Roberts and Matt Williams visit the Dorset Country Museum, where they explore finds from archaeological digs across the west of Britain.

Germany's Frontline Bomber: A look at one of the most-recognised German aircrafts of WWII and how it became a guinea pig for future bombers.

Jeremy and his team are confronted with a Mercury Cougar filled with over 15 years of cat urine. A Toyota 4Runner covered in dog hair finally gets groomed.

In Georgia, a cockroach-infested 1940s Ford goes from disgusting to deluxe, while a beat-up BMW transforms into a bright, shiny beamer in North Carolina.

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

Experts investigate creepy places associated with death. Could otherworldly connections be responsible for strange disappearances and suicides.

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.

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.

Democracy Without Democrats 1929-1933: A protest turns into a racist and anti-Jewish movement during the 1920s and the NSDAP use emotions to gain the loyalty of the people.

An awe-inspiring year of archaeological digs with Dr Alice Roberts. Roman finds include an amazing coin hoard and a man buried on a pile of dead animals.

Humans are found to have lived in Britain earlier than thought when tools are unearthed in Norfolk, while some of our ancestors' customs are revealed at another dig.

A newly discovered town in Devon turns history on its head and there's a shocking find by the Thames - almost 100 baby skeletons.

Wales: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Ireland: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

The Racial State 1933-1934: President Hindenburg suspends freedom of speech and Hitler comes to power in 1933. The first concentration camps for political opponents are set up.

Hidden In Plain Sight 1935-1938: In 1934, Hitler's government is firmly in the saddle. Most Germans support Hitler's anti-Jewish policy and the regime's terror soon escalates.

Dr Alice Roberts discovers what Britain was like before the Romans as she examines fascinating finds from the Bronze and Iron Ages.

Dr Alice Roberts visits excavations in Orkney and York on the hunt for Viking relics. Finds include an amazing collection of silver and gold.

Alice Roberts and Matt Williams visit the Dorset Country Museum, where they explore finds from archaeological digs across the west of Britain.

The El Chapo Years: Sinaloa and El Chapo aim to be the world's largest drug cartel, but their success is threatened by authorities.

The Gotti Years: When John Gotti, a capo from the Bronx, becomes fed up with the greed of his boss, Paul Castellano, he orchestrates a mob hit.

Agents Jay Dobyns and Jenna Maguire go undercover to infiltrate the Hells Angels - but the dream of being a fully patched member pushes Jay to the edge.

Ten archaeological finds, including mysterious spheres and a lost city, challenge our views on human origins and extraterrestrial links.

Discover the top ten mysterious monoliths, from a 500-ton stone tied to UFOs to giant statues hinting at advanced tech and visitors.

Dr Alice Roberts discovers what Britain was like before the Romans as she examines fascinating finds from the Bronze and Iron Ages.

Alice Roberts learns more about mankind's Stone Age ancestors, and travels to Jersey to meet a team hoping to shed new light on the Neanderthals.

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.

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.

Democracy Without Democrats 1929-1933: A protest turns into a racist and anti-Jewish movement during the 1920s and the NSDAP use emotions to gain the loyalty of the people.

Ten archaeological finds, including mysterious spheres and a lost city, challenge our views on human origins and extraterrestrial links.

Discover the top ten mysterious monoliths, from a 500-ton stone tied to UFOs to giant statues hinting at advanced tech and visitors.

Up in Flames 1936-1940: At the end of 1939, the German Army invades Poland. Examine how Hitler succeeded in pushing through his rearmament and war plans relatively unhindered.

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.

In Northumbria, skeletons tell tales of violent death and tenderness, and people curate grave goods in an amazing community project.

Dr Alice Roberts pays tribute to the Bard, visiting Shakespeare's first theatre in London's Shoreditch and sifting through the poet's rubbish.

Dr Alice Roberts visits excavations in Orkney and York on the hunt for Viking relics. Finds include an amazing collection of silver and gold.

Pentagon: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Rendlesham: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

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.

Alice Roberts and Matt Williams present more outstanding archaeology. In the east of Britain, sites include Must Farm, Colchester, Oakington, Lyminge and Silchester.

Ten archaeological finds, including mysterious spheres and a lost city, challenge our views on human origins and extraterrestrial links.

Discover the top ten mysterious monoliths, from a 500-ton stone tied to UFOs to giant statues hinting at advanced tech and visitors.

Journey back to 885, when a small army in Paris repelled the Vikings, who had ravaged everything in their path while travelling up the Seine.

Examine how the strategy of encirclement devised by Hannibal left 50,000 Romans dead on the battlefield of Apulia on August 2, 216 BC.

Explore the Mary Celestia wreck, discover imperial relics from Iraq, a medieval man's remains and lost artefacts reshaping Native American history.

Explore Seahenge's timber circle, a Ukrainian canoe, ancient remains in a mudslide and a relic from Lake Mead's dry bed.

Alice Roberts and Matt Williams present more outstanding archaeology. In the east of Britain, sites include Must Farm, Colchester, Oakington, Lyminge and Silchester.

Alice Roberts and Matt Williams visit the Dorset Country Museum, where they explore finds from archaeological digs across the west of Britain.

Up in Flames 1936-1940: At the end of 1939, the German Army invades Poland. Examine how Hitler succeeded in pushing through his rearmament and war plans relatively unhindered.

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.

Sacred buildings around the world begin to crumble without humans to maintain them. Clues about the planet's future lie in an abandoned desert town.

Deadly toxins are unleashed upon the world without humans to contain them, turning lakes and rivers into streams of acid.

In February 1942, less than three months after the Japanese bombed Pearl Harbour, military radar picks up what appears to be enemy aircraft over LA.

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.

Could the Founding Fathers have hidden secrets about ancient aliens in their documents, buildings and symbols? Experts investigate.

Experts investigate the mysterious Creation of Man, asking whether unexplained advances in human evolution could have been down to aliens.

Phoenix Lights: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Alice Roberts and Matt Williams visit the Neolithic Orkney World Heritage Site, where they explore finds from archaeological digs across the north of Britain.

Alice Roberts and Matt Williams visit sites in the west of Britain, including one uncovering the rituals of Stonehenge.

Sacred buildings around the world begin to crumble without humans to maintain them. Clues about the planet's future lie in an abandoned desert town.

Deadly toxins are unleashed upon the world without humans to contain them, turning lakes and rivers into streams of acid.

In February 1942, less than three months after the Japanese bombed Pearl Harbour, military radar picks up what appears to be enemy aircraft over LA.

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.

Pablo Escobar's Medellin Cartel become powerful cocaine traffickers. When they went to war with Colombia, the cartel test their limits.

The Sonny Barger Years: Hells Angels president transforms the club into an organised crime syndicate and creates a blueprint for outlaw biker clubs to follow.

A Hells Angel proves his loyalty to the gang by leading a mass slaughter of their enemies - but he soon wrestles with his conscience and seeks an exit.