Mirror, Mirror: The competitors look to mirrors for inspiration as they take a moment to reflect before creating pieces that represent how they see themselves. (S2, ep 1).

Think Inside the Box: In the tricky mystery box challenge, the competitors are tasked with creating different household items. (S2, ep 2).

Victorian Belfast: Alice reveals the history of Belfast, the UK's most Victorian city. She visits the shipyards that built the Titanic and gets locked up in the Crumlin Road gaol. (6 of 6).

The Power of Three: Experts investigate the power of the number three in history, science and astronomy. Could its huge significance bear links to extraterrestrial life? (S5, ep 14).

Magic of the Gods: Experts search ancient accounts of magic for evidence suggesting that the wizards and witches of yesteryear were given otherworldly knowledge by aliens. (S5, ep 15).

Stonehenge: As Alex Langlands examines the unique properties of the stones of Stonehenge, Helen Skelton visits the nearby village where its builders lived. (S1, ep 5).

Britain's Roswell: In December 1980, Air Force personnel witnessed strange lights hovering above the English countryside. Did they have a close encounter with alien spacecraft? (S1, ep 11).

Yosemite National Park: The infamous Yosemite National Park has a darker side that includes mysterious sightings, disappearances and even a prehistoric pterodactyl. (S2, ep 8).

Mark Twain National Forest: Some claim that the dark, mysterious energies that surround this national park point to treasures from a lost civilisation that are hidden there. (S2, ep 6).

The Power of Three: Experts investigate the power of the number three in history, science and astronomy. Could its huge significance bear links to extraterrestrial life? (S5, ep 14).

Magic of the Gods: Experts search ancient accounts of magic for evidence suggesting that the wizards and witches of yesteryear were given otherworldly knowledge by aliens. (S5, ep 15).

Vikings: Helen Skelton and Alex Langlands venture to Lindisfarne and the Isle of Man to unearth the secrets of Viking burial grounds. (S1, ep 6).

Canada's Roswell: On 4 October 1967, dozens of eyewitnesses reported seeing what appeared to be a UFO hovering above the water's surface in Nova Scotia. Was it an alien ship? (S1, ep 16).

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. (S1, ep 2).

Name That Toon: In this episode, each competitor is tasked with creating their very own original cartoon character made of glass. (S2, ep 3).

Force of Nature: In this episode, each competitor is tasked with creating a special piece inspired by the phenomenon of climate change. (S2, ep 4).

Wartime Dover: As series two kicks off, Professor Alice Roberts examines Britain in wartime by looking at the coastal town of Dover.

Chamber of Secrets: The Dillman family drill into a hidden treasure chamber. Nevada's gold miners must find another way into the rest of the underground tunnel system. (7 of 8).

The Last Hours of Saint-Pierre: Kevin explores the bay of Saint-Pierre in Martinique, where ships smouldered and sank following the volcanic eruption of 1902. (S2, ep 2).

This July, 75 years have passed since the Roswell incident. This two-part documentary revisits the alleged crash of an extra terrestrial craft at Roswell, New Mexico in 1947. (1 of 2).

Science and Technology: Explore the science and technology breakthroughs that have contributed to modern society, from the wheel's invention to the Incas' knowledge of the stars.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases. (S1, ep 2).

Odysseus - Warrior's Revenge: Continue the story of Odysseus, a timeless tale of adventure filled with mythological beasts and vengeful gods. But could it actually have happened? (S1, ep 7).

The Power of Three: Experts investigate the power of the number three in history, science and astronomy. Could its huge significance bear links to extraterrestrial life? (S5, ep 14).

Magic of the Gods: Experts search ancient accounts of magic for evidence suggesting that the wizards and witches of yesteryear were given otherworldly knowledge by aliens. (S5, ep 15).

The Normandy Campaign: Retrace the 100 days of battle as the Allies liberated Normandy, broke through the German line and paved the way towards victory. (S1, ep 2 of 2).

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. (S1, ep 2).

Name That Toon: In this episode, each competitor is tasked with creating their very own original cartoon character made of glass. (S2, ep 3).

Force of Nature: In this episode, each competitor is tasked with creating a special piece inspired by the phenomenon of climate change. (S2, ep 4).

Wartime Dover: As series two kicks off, Professor Alice Roberts examines Britain in wartime by looking at the coastal town of Dover.

Aliens And Forbidden Islands: Experts investigate why so many UFOs have been spotted near remote islands. Could these far-removed spots be the earthly homes of aliens? (S6, ep 1).

Aliens And The Lost Ark: Theorists investigate whether sought-after religious relic the Ark of the Covenant could hold connections to our extraterrestrial past. (S6, ep 2).

Vikings: Helen Skelton and Alex Langlands venture to Lindisfarne and the Isle of Man to unearth the secrets of Viking burial grounds. (S1, ep 6).

Canada's Roswell: On 4 October 1967, dozens of eyewitnesses reported seeing what appeared to be a UFO hovering above the water's surface in Nova Scotia. Was it an alien ship? (S1, ep 16).

Apache-Sitgreaves National Forest: A trip through the ginormous forest in Arizona. Strange encounters rumoured to have happened there include an alien abduction. (S2, ep 4).

Cleveland National Forest: Explore Cleveland National Forest, where reports of gun-wielding ghosts, savage creatures and otherworldly portals are rife. (S2, ep 3).

Aliens And Forbidden Islands: Experts investigate why so many UFOs have been spotted near remote islands. Could these far-removed spots be the earthly homes of aliens? (S6, ep 1).

Aliens And The Lost Ark: Theorists investigate whether sought-after religious relic the Ark of the Covenant could hold connections to our extraterrestrial past. (S6, ep 2).

Elizabeth: In 1592, Elizabeth I visited Sudeley Castle where a spectacular garden was created. 500 hundred years later, a team of archaeologists hunt for this lost gem. (S2, ep 1).

Mexico's Roswell: In 1974, the US government was tracking a UFO when it disappeared over Coyame, Mexico. At the same time, a civilian plane crashed. Why was it all covered up? (S1, ep 9).

Terrifying explosions rock the streets of Manhattan, and police footage captures a shadowy creature stalking Georgia's ancient forests. (S1, ep 3).

Centre of Attention: At the midway stage of the competition, each competitor is tasked with creating a glass art centrepiece fit for a dining room table. (S2, ep 5).

Scents & Sensibility: The stakes are raised as the final comes into view on the horizon. This episode sees the competitors design a perfume bottle with a sculpted stopper. (S2, ep 6).

Georgian Bristol: Alice Roberts explores the Georgian era in her hometown of Bristol, from architectural gems and the world's first chocolate factory to the horror of the slave trade.

Explosive Discoveries: In Utah, the Dillmans must tread carefully to avoid triggering an Aztec water trap. The Villescas family discover more secrets beneath the Fire Pits. (8 of 8).

The True Story of the Pirates of the Caribbean: Kevin dives into the blue waters of the Caribbean to find relics from piracy's heyday in the region. (S2, ep 3).

San Quentin Breakout: A lifelong escape artist, Forrest Tucker, ends up in San Quentin prison - but despite his advanced age, he manages to engineer an audacious prison break. (S2, ep 3).

The Best of Beyond Oak Island: Check out the best moments, milestones and highlights from some of the most epic treasure quests around the globe. (S2, ep 10).

Elizabeth I: Professor Alice Roberts strives to get to the bottom of Elizabeth I's death, using research, medical expertise and dramatic recreation to determine possible reasons. (S1, ep 2).

Thor: Idolised in Norse mythology, Thor protects the planet from evil threats. And today, new discoveries are helping us to uncover the hidden truth behind the legend. (S1, ep 8).

Aliens And Forbidden Islands: Experts investigate why so many UFOs have been spotted near remote islands. Could these far-removed spots be the earthly homes of aliens? (S6, ep 1).

Aliens And The Lost Ark: Theorists investigate whether sought-after religious relic the Ark of the Covenant could hold connections to our extraterrestrial past. (S6, ep 2).

This July, 75 years have passed since the Roswell incident. This two-part documentary revisits the alleged crash of an extra terrestrial craft at Roswell, New Mexico in 1947. (1 of 2).

Terrifying explosions rock the streets of Manhattan, and police footage captures a shadowy creature stalking Georgia's ancient forests. (S1, ep 3).

Centre of Attention: At the midway stage of the competition, each competitor is tasked with creating a glass art centrepiece fit for a dining room table. (S2, ep 5).

Scents & Sensibility: The stakes are raised as the final comes into view on the horizon. This episode sees the competitors design a perfume bottle with a sculpted stopper. (S2, ep 6).

Georgian Bristol: Alice Roberts explores the Georgian era in her hometown of Bristol, from architectural gems and the world's first chocolate factory to the horror of the slave trade.

Aliens And Mysterious Mountains: Throughout time, people have believed mountains were the home of the divine. But could these hilltop spirits have been extraterrestrials? (S6, ep 3).

Aliens In America: Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World. Is there more to the US's past than history books suggest? (S6, ep 4).

Elizabeth: In 1592, Elizabeth I visited Sudeley Castle where a spectacular garden was created. 500 hundred years later, a team of archaeologists hunt for this lost gem. (S2, ep 1).

Mexico's Roswell: In 1974, the US government was tracking a UFO when it disappeared over Coyame, Mexico. At the same time, a civilian plane crashed. Why was it all covered up? (S1, ep 9).

Great Sand Dunes National Park: A stroll through Great Sand Dunes National Park, where strange lights, animal mutilations and other bizarre incidents have been spotted. (S2, ep 9).

Great Smokey Mountains National Park: A stroll through a national park that is the alleged underground base for a powerful secret society. (S2, ep 5).

Aliens And Mysterious Mountains: Throughout time, people have believed mountains were the home of the divine. But could these hilltop spirits have been extraterrestrials? (S6, ep 3).

Aliens In America: Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World. Is there more to the US's past than history books suggest? (S6, ep 4).

Romans: Silchester is one of the best preserved Roman sites in Britain. Why did Rome's infamous emperor Nero stamp his mark on the town? (S2, ep 2).

Russian Roswell: An exploration of the facts and myths surrounding the Soviet-era UFO research programmes at Kapustin Yar. (S1, ep 6).

A police dash cam captures a high speed pursuit and an officer is stunned when the erratic fugitive makes an impossible getaway. (S1, ep 4).

Who's Got Game?: In this round, the competitors are tasked with creating a special piece that reflects the hurdles they have overcome in their respective pasts. (S2, ep 7).

Runway Walk: In this round, the competitors are challenged with creating an intricately crafted accessory for a high fashion look. (S2, ep 8).

Edwardian Cardiff: Alice tells the story of Edwardian Britain by studying the history of Cardiff, Britain's most Edwardian town. (3 of 6).

Ramses' Egyptian Empire: Vast statues, towering obelisks and incredible temples formed the legacy left by the greatest Egyptian Emperor. Cutting-edge graphics recreate this golden empire.

USS Monitor, Clash of the Ironclads: Kevin goes diving in the Atlantic Ocean to explore a battleship that saved the Northern Navy in the American Civil War. (S2, ep 4).

Runes: During his time in charge, Himmler made the study of runes - letters of ancient Germanic writing - obligatory for SS officers in the belief they held powers. (S1, ep 6).

Last Call for Michael Malloy: The strange story of Michael Molly shows how some people just won't die when you want them to. (S1, ep 6).

Outbreak: 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.

The Matron's Revenge, Possessed in Texas, the Face of Death: A nurse faces an unearthly apparition, a home is struck by demonic possession, and a woman starts seeing ghosts. (S1, ep 2).

Aliens And Mysterious Mountains: Throughout time, people have believed mountains were the home of the divine. But could these hilltop spirits have been extraterrestrials? (S6, ep 3).

Aliens In America: Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World. Is there more to the US's past than history books suggest? (S6, ep 4).

Science and Technology: Explore the science and technology breakthroughs that have contributed to modern society, from the wheel's invention to the Incas' knowledge of the stars.

A police dash cam captures a high speed pursuit and an officer is stunned when the erratic fugitive makes an impossible getaway. (S1, ep 4).

Who's Got Game?: In this round, the competitors are tasked with creating a special piece that reflects the hurdles they have overcome in their respective pasts. (S2, ep 7).

Runway Walk: In this round, the competitors are challenged with creating an intricately crafted accessory for a high fashion look. (S2, ep 8).

Edwardian Cardiff: Alice tells the story of Edwardian Britain by studying the history of Cardiff, Britain's most Edwardian town. (3 of 6).

Aliens And Stargates: Experts investigate remote ruins, mysterious caves and legendary mountain portals. Could these alleged stargates have brought ancient aliens to Earth? (S6, ep 5).

The Star Children: Experts comb history for evidence of children with strange abilities and great knowledge. Could these young people have been born from ancient aliens? (S6, ep 6).

Romans: Silchester is one of the best preserved Roman sites in Britain. Why did Rome's infamous emperor Nero stamp his mark on the town? (S2, ep 2).

Russian Roswell: An exploration of the facts and myths surrounding the Soviet-era UFO research programmes at Kapustin Yar. (S1, ep 6).

New. Sarno Slides: In May 1998, the town of Sarno in southern Italy was ravaged by rain. This caused a huge mud slide that travelled up to 60 kilometres and buried dozens of people.

Aliens And Stargates: Experts investigate remote ruins, mysterious caves and legendary mountain portals. Could these alleged stargates have brought ancient aliens to Earth? (S6, ep 5).

The Star Children: Experts comb history for evidence of children with strange abilities and great knowledge. Could these young people have been born from ancient aliens? (S6, ep 6).

Invincible: For more than 260 years, HMS Invincible lay at the bottom of the Solent. Now, archaeologists are diving beneath the waves to learn more about this game-changing ship. (S2, ep 3).

Texas' Roswell: In April 1897, an unidentified craft crashed in Texas. Locals claimed they buried the spaceship and its alien pilot. Can a new search uncover the remains? (S1, ep 12).

A Texan police officer records a monstrous beast on dashcam. Meanwhile, a surveillance camera captures an ominous explosion in the skies above Hawaii. (S1, ep 5).

Light My Fire: In this round, the competitors are put to the test as they are tasked with creating a sculpture that captures the heat, energy and emotion of fire. (S2, ep 9).

Finale: In a pulsating season finale, the two remaining competitors must fill a gallery space with a show-stopping installation. (S2, ep 10).

Civil War Oxford: Alice explores the English Civil War through the history of Oxford, the city at the heart of a battle between an autocratic king and his rebellious parliament. (4 of 6).

Churchill's Secret Bunkers: Cutting-edge technology gives an insider's look at the subterranean city built within Churchill's secret bunkers during the Second World War.

Wales: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times. (S1, ep 1).

Fire Ship of Northumberland Strait: With 3D recreations of the wreck, discover the story of the ship said to have sailed ablaze within the Northumberland Strait. (S1, ep 2).

US: Ross Kemp heads to New York, discovering the connection between USA and Britain in the rise of the mafia - as well as learning about the infamous Kray twins. (S1, ep 2).

Hard Way Back: Series highlighting what life was like during WWII. Rookie platoon leader Charles Scheffel suffers his first losses as he battles Rommel's Afrika Korps in Tunisia. (2 of 10).

Syria: Since the Syrian civil war broke out in 2011, 400,000 have been killed in the conflict. Who is to blame for this and the terrible conditions in which its people live? (S2, ep 2).

Aliens And Stargates: Experts investigate remote ruins, mysterious caves and legendary mountain portals. Could these alleged stargates have brought ancient aliens to Earth? (S6, ep 5).

The Star Children: Experts comb history for evidence of children with strange abilities and great knowledge. Could these young people have been born from ancient aliens? (S6, ep 6).

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases. (S1, ep 2).

A Texan police officer records a monstrous beast on dashcam. Meanwhile, a surveillance camera captures an ominous explosion in the skies above Hawaii. (S1, ep 5).

Light My Fire: In this round, the competitors are put to the test as they are tasked with creating a sculpture that captures the heat, energy and emotion of fire. (S2, ep 9).

Finale: In a pulsating season finale, the two remaining competitors must fill a gallery space with a show-stopping installation. (S2, ep 10).

Civil War Oxford: Alice explores the English Civil War through the history of Oxford, the city at the heart of a battle between an autocratic king and his rebellious parliament. (4 of 6).

The Hidden Empire: Ancient Astronaut theorists suggest that China, with its history of technological advancement and isolationism, could have been the home of alien beings. (S9, ep 10).

Space Station Moon: It was mankind's finest hour, the greatest technological achievement of the 20th century - the Apollo 11 mission to the Moon. (S9, ep 11).

Russia's Secret Files: Russia spans over six million square miles of some of the most rugged terrain on Earth, much of which is uninhabited and largely unexplored. (S9, ep 12).

Vehicles That Liberated Europe: The story of one American GI and how he and his Harley motorbike became a legend. (S1, ep 3).

Second World War: Homefront: Eyewitness accounts of how trains were able to bring back troops from Dunkirk, and evacuate hundreds of children to safety. (S1, ep 8).

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. (S1, ep 2).

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. (S1, ep 4).

Jaws Of The Enemy: 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. (S1, ep 3).

Bloody Santa Cruz: 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. (S1, ep 4).

Storming Mussolini's Island: It's July 10, 1943 and the Allied Forces have evicted the Axis Powers from North Africa and can finally begin the Italian Campaign. (S1, ep 3).

Churchill Strikes Back: December 1941: Under cover of a fierce naval bombardment, a taskforce of elite British commandos sail towards the Norwegian town of South Vaagso. (S1, ep 4).

Fire Ship of Northumberland Strait: With 3D recreations of the wreck, discover the story of the ship said to have sailed ablaze within the Northumberland Strait. (S1, ep 2).

Syria: Since the Syrian civil war broke out in 2011, 400,000 have been killed in the conflict. Who is to blame for this and the terrible conditions in which its people live? (S2, ep 2).

Shipwrecked Sailors of the Roman Empire: Kevin Sempé dives in search of wrecks harking back to the Roman Empire. The journey begins with the Nave Romana. (S2, ep 1).

The Skull that Changed Science, the Bat Bomb and the Stone Age Multitool: Investigating how a skull changed neuroscience and asking if World War II could have been won by a bat. (S2, ep 2).

Long Lost Logs: Salvador sets out to find valuable 80-year-old hardwood logs from the bottom of the sea. Plus, a multi-million-dollar vessel undergoes risky repairs. (S1, ep 1).

The Mastermind: 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. (S1, ep 1).

Empire: 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. (S1, ep 2).

The Hidden Empire: Ancient Astronaut theorists suggest that China, with its history of technological advancement and isolationism, could have been the home of alien beings. (S9, ep 10).

Space Station Moon: It was mankind's finest hour, the greatest technological achievement of the 20th century - the Apollo 11 mission to the Moon. (S9, ep 11).

Russia's Secret Files: Russia spans over six million square miles of some of the most rugged terrain on Earth, much of which is uninhabited and largely unexplored. (S9, ep 12).

Elizabeth I: Professor Alice Roberts strives to get to the bottom of Elizabeth I's death, using research, medical expertise and dramatic recreation to determine possible reasons. (S1, ep 2).

US: Ross Kemp heads to New York, discovering the connection between USA and Britain in the rise of the mafia - as well as learning about the infamous Kray twins. (S1, ep 2).

The Skull that Changed Science, the Bat Bomb and the Stone Age Multitool: Investigating how a skull changed neuroscience and asking if World War II could have been won by a bat. (S2, ep 2).

Beyond Roswell: The US military has denied that the 1947 Roswell crash was anything other than a weather balloon, but FBI files include a memo that indicate otherwise. (S9, ep 13).

The Returned: Thousands of people from every part of the world have reported being abducted by aliens, including even a world leader - President Kiran Ilyumzhinov. (S9, ep 15).

Shiva The Destroyer: Of all the Hindu gods, none is more important than Shiva, the great destroyer. Could the deity have been the leader of an extraterrestrial race? (S9, ep 16).

From December 1941 to May 1942, Singapore falls, the Wannsee Conference is held in Berlin and a single event in the Pacific transforms the war into a total global conflict.

By Spring 1942, German armies had taken control, the battles of Midway and Stalingrad begin and American's achieve a ground-breaking milestone in the development of atomic weapons.

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. (S1, ep 3).

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. (S1, ep 4).

The Great Challenge: While the allies aim to end Hitler's domination of Western Europe, British troops are secretly being trained for an enormous, amphibious operation. (1 of 2).

The Great Assault: In June 1944, the Allied armada launches an assault on the Normandy coast, with soldiers charging in successive waves on a successful and historic day. (2 of 2).

Part One: On the orders of Adolf Hitler, the Nazi invaders of Alderney utilised more than 5,000 slave labourers to build a series of protective fortifications. (1 of 2).

Part Two: The World War II killings carried out by the Nazis on Alderney represent the worst mass murder in British history - yet no one has been brought to justice. (2 of 2).

Empire: 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. (S1, ep 2).

The Last Hours of Saint-Pierre: Kevin explores the bay of Saint-Pierre in Martinique, where ships smouldered and sank following the volcanic eruption of 1902. (S2, ep 2).

Invincible: For more than 260 years, HMS Invincible lay at the bottom of the Solent. Now, archaeologists are diving beneath the waves to learn more about this game-changing ship. (S2, ep 3).

Haarp: Are governments around the world using weather control to incite the next World War and possibly destroy the planet? A team of experts investigate. (S1, ep 6).

Cloning: Animal cloning has been a reality for decades but the disturbing truth is that human cloning may be much closer than you think. (S1, ep 7).

Civil War Oxford: Alice explores the English Civil War through the history of Oxford, the city at the heart of a battle between an autocratic king and his rebellious parliament. (4 of 6).

Black Triangle: A look at some of the most widely witnessed UFO events ever, including large black triangular objects in the night sky regularly spotted in the 80s and 90s. (3 of 6).

In 1966, a class of Melbourne students spot a UFO and are told never to speak of the incident. A man's car dies in 2009 after he spots a cigar-shaped object in the New York sky. (S1, ep 5).

A teenager sees a mushroom-shaped object appear in the field while feeding his sheep in 1971. In 2000, police officers in Illinois chase a triangular UFO the size of a house. (S1, ep 6).

Beyond Roswell: The US military has denied that the 1947 Roswell crash was anything other than a weather balloon, but FBI files include a memo that indicate otherwise. (S9, ep 13).

The Returned: Thousands of people from every part of the world have reported being abducted by aliens, including even a world leader - President Kiran Ilyumzhinov. (S9, ep 15).

Shiva The Destroyer: Of all the Hindu gods, none is more important than Shiva, the great destroyer. Could the deity have been the leader of an extraterrestrial race? (S9, ep 16).

The True Story of the Pirates of the Caribbean: Kevin dives into the blue waters of the Caribbean to find relics from piracy's heyday in the region. (S2, ep 3).

The Matron's Revenge, Possessed in Texas, the Face of Death: A nurse faces an unearthly apparition, a home is struck by demonic possession, and a woman starts seeing ghosts. (S1, ep 2).

Wales: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times. (S1, ep 1).

Treasures Of The Gods: Across the world, there are stories of treasures that have been lost for centuries. Could these ancient relics have been hidden by extraterrestrials? (S6, ep 7).

Aliens And The Red Planet: Experts question what probes on Mars may have found over the past 40 years. Could NASA be hiding proof of life on the Red Planet from the public? (S6, ep 8).

Invincible: For more than 260 years, HMS Invincible lay at the bottom of the Solent. Now, archaeologists are diving beneath the waves to learn more about this game-changing ship. (S2, ep 3).

Texas' Roswell: In April 1897, an unidentified craft crashed in Texas. Locals claimed they buried the spaceship and its alien pilot. Can a new search uncover the remains? (S1, ep 12).

Boscastle Flood: In August 2004, the Cornish village of Boscastle is overwhelmed by storms and a torrent of fast-moving water. (S1, ep 2).

Treasures Of The Gods: Across the world, there are stories of treasures that have been lost for centuries. Could these ancient relics have been hidden by extraterrestrials? (S6, ep 7).

Aliens And The Red Planet: Experts question what probes on Mars may have found over the past 40 years. Could NASA be hiding proof of life on the Red Planet from the public? (S6, ep 8).

Game of Thrones: Archaeologists conduct a dig at Auckland Castle in Co Durham, which 700 years ago was home to a group of power-crazed bishops. (S2, ep 4).

The Grays' Agenda: Alien abductees undergo hypnotic experimentation to see if there is any truth in their stories. (S1, ep 2).

An underwater ROV on a routine inspection films a mystifying monster from the deep. A thunderous explosion rocks a city street in Ukraine. (S1, ep 6).

Normandie: The SS Normandie entered service in 1935 and remains the most powerful steam turbo-electric-propelled passenger ship ever built. (1 of 6).

Plantagenet Canterbury: Alice studies the history of Canterbury, learning the true horror of the Black Death and exploring the iconic cathedral. (5 of 6).

Jesus' Jerusalem: A journey back to the Jerusalem that Jesus would have visited throughout his life, using research, expert analysis and cutting-edge technology.

Ireland: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times. (S1, ep 2).

The Real Thing: Ton and Allen get a surprise when they win a classic GMC truck. They also find a first-of-its kind Coca-Cola vending machine. But is it the real McCoy? (S1, ep 5).

Weapons of Past Destruction: Ton and Allen find centuries-old Masonic swords and a Nixon-era lie detector. Plus, they test out Civil War muskets on the firing range. (S1, ep 6).

Treasure Hunter. D-Day: Ross goes in search of wrecks that help tell the story of D-Day and discovers that winning wasn't just a case of superior power, but also ingenuity. (S1, ep 4).

Buried Beneath Jerusalem: A team of archaeologists embark on a quest to unearth the most treasured and famous artefact in human history, rumoured to be buried beneath Jerusalem. (S1, ep 2).

Vampire Beast: An elusive predator, which used to prey on goats and dogs in 1954, has returned. In 2007, residents of Bolivia started mysterious losing pets and farm animals.

Treasures Of The Gods: Across the world, there are stories of treasures that have been lost for centuries. Could these ancient relics have been hidden by extraterrestrials? (S6, ep 7).

Aliens And The Red Planet: Experts question what probes on Mars may have found over the past 40 years. Could NASA be hiding proof of life on the Red Planet from the public? (S6, ep 8).

The Great Challenge: While the allies aim to end Hitler's domination of Western Europe, British troops are secretly being trained for an enormous, amphibious operation. (1 of 2).

An underwater ROV on a routine inspection films a mystifying monster from the deep. A thunderous explosion rocks a city street in Ukraine. (S1, ep 6).

Normandie: The SS Normandie entered service in 1935 and remains the most powerful steam turbo-electric-propelled passenger ship ever built. (1 of 6).

Plantagenet Canterbury: Alice studies the history of Canterbury, learning the true horror of the Black Death and exploring the iconic cathedral. (5 of 6).

The Shamans: Throughout history, spiritual leaders known as shamans have healed, protected and advised. Could they really be in contact with extraterrestrial realms? (S6, ep 9).

Aliens And Insects: Could insects have descended from extraterrestrials? Experts investigate whether Earth's 10 quintillion critters could have dangerous links to aliens. (S6, ep 10).

Game of Thrones: Archaeologists conduct a dig at Auckland Castle in Co Durham, which 700 years ago was home to a group of power-crazed bishops. (S2, ep 4).

The Grays' Agenda: Alien abductees undergo hypnotic experimentation to see if there is any truth in their stories. (S1, ep 2).

New. Thailand Tsunami: The story of an elephant trainer and a fisherman in Thailand who survived an enormous tsunami in 2004 which killed 300,000 people.

The Shamans: Throughout history, spiritual leaders known as shamans have healed, protected and advised. Could they really be in contact with extraterrestrial realms? (S6, ep 9).

Aliens And Insects: Could insects have descended from extraterrestrials? Experts investigate whether Earth's 10 quintillion critters could have dangerous links to aliens. (S6, ep 10).

The Industrial Revolution: The team search for artefacts from the country's first superhighway - the Bridgewater Canal. (S2, ep 5).

Hangar 18: UFO Warehouse: Experts claim that UFO wreckage is stored in a top-secret facility in Ohio. Former employees spin a tale of alien bodies and flying saucer debris. (S1, ep 20).

A gas station camera captures a customer bursting into flames, an ancient statue spins in its locked cabinet, and a camera films an alien-like creature in the sewers. (S1, ep 1).

Queen Elizabeth: Renowned for its sheer power, the awe-inspiring Queen Elizabeth is the Royal Navy's lead ship and largest ever constructed. (2 of 6).

Stewart Sturling: Alice explores the story of Stewart Britain by visiting the home of the Scottish royals who eventually took the English throne in 1603 and created Great Britain. (6 of 6).

The Pagans: Explore Stonehenge, one of the greatest monuments of the ancient world. Experts delve into a new theory that sheds light on how it was used by the people who built it.

Pentagon: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times. (S1, ep 3).

This July, 75 years have passed since the Roswell incident. This two-part documentary revisits the alleged crash of an extra terrestrial craft at Roswell, New Mexico in 1947. (2 of 2).

Society: From Lao Tzu, Confucius and Mencius to Plato and Aristotle, pick the brains of the great philosophers who have radically changed the way ordinary people have lived.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases. (S1, ep 3).

Deal or No Deal: Rogers' campaign begins with the offer of a pardon which Hornigold and Jennings accept. However, not all Nassau pirates agree. (S1, ep 5).

The Shamans: Throughout history, spiritual leaders known as shamans have healed, protected and advised. Could they really be in contact with extraterrestrial realms? (S6, ep 9).

Aliens And Insects: Could insects have descended from extraterrestrials? Experts investigate whether Earth's 10 quintillion critters could have dangerous links to aliens. (S6, ep 10).

The Great Assault: In June 1944, the Allied armada launches an assault on the Normandy coast, with soldiers charging in successive waves on a successful and historic day. (2 of 2).

A 60-foot wide object smashes through the upper atmosphere at 40,000mph. A creature is filmed lurking in the shadows where livestock turn up dead. (S1, ep 7).

Queen Elizabeth: Renowned for its sheer power, the awe-inspiring Queen Elizabeth is the Royal Navy's lead ship and largest ever constructed. (2 of 6).

Stewart Sturling: Alice explores the story of Stewart Britain by visiting the home of the Scottish royals who eventually took the English throne in 1603 and created Great Britain. (6 of 6).

Alien Breeders: Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past. (S6, ep 11).

Reptillians: Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction. (S6, ep 12).

The Industrial Revolution: The team search for artefacts from the country's first superhighway - the Bridgewater Canal. (S2, ep 5).

Hangar 18: UFO Warehouse: Experts claim that UFO wreckage is stored in a top-secret facility in Ohio. Former employees spin a tale of alien bodies and flying saucer debris. (S1, ep 20).

New. Sri Lanka Tsunami: The story of how a minister, his wife and 28 orphaned children under his care escaped a deadly Sri Lankan tsunami the morning after Christmas 2004.

Alien Breeders: Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past. (S6, ep 11).

Reptillians: Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction. (S6, ep 12).

The Real War Horse: Uncovering the stories behind a Yorkshire garrison's stables and the horse the Germans could not kill. (S2, ep 6).

The Templars: It's believed the Knights Templar owned vast swathes of land, commanded fleets, and lent money to kings. How do we separate the facts from the fiction? (S1, ep 1).

A mysterious UFO appears over Chile and a deep-sea dive plunges a research vessel into the heart of an underwater lake of death. (S1, ep 8).

Andrea Doria: Lacking in speed and might, the SS Andrea Doria more than made up for it in beauty, but on the night of 25 July 1956 - the Italian liner met a disastrous fate. (3 of 6).

Medieval Lincoln: Alice is in Lincoln, getting to grips with life in medieval England. She visits the magnificent cathedral that was once the tallest building in the world. (S3, ep 1).

Braveheart's Scotland: A recreation of 13th century Scotland and the battle against the English army famously fought by the inspirational William Wallace - AKA Braveheart.

Rendlesham: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times. (S1, ep 4).

The Sobibor Revolt: During World War II, the Nazi war machine creates specialised death camps. At Sobibor, Poland, a small number of Jews engineer a mass escape. (S2, ep 4).

The Atocha's Emerald City: The Lagina Brothers and Matty Blake join the late Mel Fisher's famous family to search for emeralds from the Atocha shipwreck. (S3, ep 1).

George IV: The Party King: Professor Alice Roberts dives into the facts surrounding the death of King George IV, looking to shed startling new light on his final few days. (S2, ep 1).

Series investigating compelling UFO and alien cases by opening previously off-limits secret files. Does the mysterious Blue Planet Project hold the answers? (S1, ep 1).

Alien Breeders: Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past. (S6, ep 11).

Reptillians: Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction. (S6, ep 12).

This July, 75 years have passed since the Roswell incident. This two-part documentary revisits the alleged crash of an extra terrestrial craft at Roswell, New Mexico in 1947. (2 of 2).

A mysterious UFO appears over Chile and a deep-sea dive plunges a research vessel into the heart of an underwater lake of death. (S1, ep 8).

Andrea Doria: Lacking in speed and might, the SS Andrea Doria more than made up for it in beauty, but on the night of 25 July 1956 - the Italian liner met a disastrous fate. (3 of 6).

Medieval Lincoln: Alice is in Lincoln, getting to grips with life in medieval England. She visits the magnificent cathedral that was once the tallest building in the world. (S3, ep 1).

Aliens & Superheroes: Experts investigate whether ancient tales of beings with super-human powers could be inspired by extra-terrestrials who came to Earth in the past. (S6, ep 13).

Tesla Experiment: Inventor Nikola Tesla claimed to have direct communication with beings on other planets. Could this genius scientist have been a human 'receiver'? (S6, ep 14).

The Real War Horse: Uncovering the stories behind a Yorkshire garrison's stables and the horse the Germans could not kill. (S2, ep 6).

The Templars: It's believed the Knights Templar owned vast swathes of land, commanded fleets, and lent money to kings. How do we separate the facts from the fiction? (S1, ep 1).

Mexico: For over a week, a tropical depression dumps massive rainfall over central Mexico's Sierra mountains. In Puebla, more than 100 mudslides are unleashed. (S1, ep 5).

Aliens & Superheroes: Experts investigate whether ancient tales of beings with super-human powers could be inspired by extra-terrestrials who came to Earth in the past. (S6, ep 13).

Tesla Experiment: Inventor Nikola Tesla claimed to have direct communication with beings on other planets. Could this genius scientist have been a human 'receiver'? (S6, ep 14).

Crusaders of Vadum Jacob: The siege of Vadum Jacob in 1179 saw Muslim forces overcome the Knights Templar. Now, forensic analysis of the battleground can shed light on the war. (S3, ep 1).

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. (S1, ep 2).

A deadly shockwave hurtles towards a terrified driver. An alien signal rises from a deep ocean abyss, and a bizarre glowing orb swoops along a remote forest road. (S1, ep 9).

Rex: An ocean liner that saw it all, including World War II, SS Rex was a one-of-a-kind Italian ship but was ultimately left abandoned. Discover why here. (4 of 6).

Restoration London: Alice heads to London to attempt to make sense of the world-changing events during the short but eventful Restoration period. (S3, ep 2).

Hitler's Supercity: A chilling recreation of the unsettling version of Germany that Adolf Hitler had wanted to create, complete with monstrous monuments and built on slave labour.

Scotland: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times. (S1, ep 5).

Egypt, Rome, Nepal: Dive deep into the ancient cultures of Egypt, Rome and Nepal and reveal how their people treated their dead. (S1, ep 1).

The Lost Viking Fleet of Roskilde: Roskilde's Viking Ship Museum is one of Denmark's top attractions, proving the interest in these seafaring people remains as strong as ever. (S1, ep 1).

The Capital Threat: 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.