Curse Of The Jungle Treasure. In Mexico, archaeologists uncover a 100-foot tall mud pyramid, marking the site of the capital city of the mysterious Olmec. Who were these people.

water contamination in Ghana and jungle preservation in South America.

Teleshopping.

Teleshopping.

How do they pick, process and can thousands of tonnes of grapefruit? How do they build conveyor belts to carry millions of pieces of luggage every year.

How do they make the world's finest harp strings? How do they build roof windows that can keep out a hurricane? And, How do they make Belgian waffles.

In a definitive exploration of the legacy of Apollo 11 and the first man on the Moon, celebrate Neil Armstrong's life and innumerable contributions to space exploration.

When NASA Met Jupiter. NASA's Juno probe is unlocking Jupiter's secrets, answering mysteries and gathering data. Scientists and experts explain the importance of this mission.

NASA's Journey To Mars. Manned missions to Mars are the next frontier of human exploration and NASA wants to put boots on the Red Planet by 2035. But, is it mission impossible.

Rock 'Em Sock 'Em Revenge. Kevin and Grant build supersized Rock 'Em Sock 'Em Robots, build a motorcycle with one wheel, and see what it takes to survive the perfect storm.

Holiday Special. A balloon-powered sleigh is built to deliver presents, snow is made and covers Kevin's front lawn and holiday decorations are deployed in record time.

King Solomon's Treasures. Priceless gold and silver artefacts are believed to be lost in King Solomon's hidden mines. Rob and Stefan search for the legendary treasure.

Doomsday Volcano Mystery. Beneath the densely populated city of Naples lies a looming threat. A super volcano may be on the verge of erupting and cause an apocalyptic catastrophe.

Return of the Moon Bugs. Apollo 12 astronauts bring back something alive from the moon and NASA track an asteroid heading towards Earth only to make a shocking discovery.

Ghosts On A Comet. When a Chinese moon rover breaks down, a NASA scientist points to a mysterious material that seemed to sabotage the Apollo missions, decades earlier.

The Moon That Disappeared. Newly discovered documents reveal NASA's secret plan B for failure of the first moon landing. And NASA's Cassini mission unravels a 300-year-old mystery.

How do they handcraft Espadrilles shoes? How do they make prefabricated houses? How they store priceless documents to keep them safe for hundreds of years.

How do they harvest and process the world's toughest and most expensive nut? How do they turn lake water into tap water? How do they hold back fans at gigs.

How do they build the biggest apartment block on the planet? How do they make the classic British boot? How do they make cooking pans last a lifetime.

How do they craft a classic Indian instrument, the Sitar? How do they make beef biltong? Plus, how do they build monster bulldozers.

How do they fashion the Fedora hat? How do they make the cement that builds the world? How do they harvest and freeze millions of peas in under three hours.

How do they turn goat fleeces into fabrics? How do they build a quad bike that turns into a jet-ski? How do they create the harp.

Human Bait. Mireya and Ronny return to where they heard whistles and saw glowing eyes. Meanwhile, Mireya agrees to be bait in order to lure out Bigfoot.

Bigfoot Moon Rising. After Russell records thermal imagery that he believes is Bigfoot, Mireya and Ronny have a terrifying experience when they realise they're not alone.

Mystery Of The American Maya. Justin and Emiliano scan the Florida landscape and dive in waters teaming with alligators as they try to unravel the mystery of the Mayan empire's fate.

Finding The Fountain Of Youth. Hidden messages in a 500-year-old map lead Justin and Emiliano to Florida and Arkansas in search of a source of water said to grant eternal life.

Moon. New scientific discoveries reveal that the moon has an incredible, violent, and dynamic history. Was the moon originally more similar to earth than previously thought.

Return of the Moon Bugs. Apollo 12 astronauts bring back something alive from the moon and NASA track an asteroid heading towards Earth only to make a shocking discovery.

Rise of the Ice Creatures. An Apollo 17 photo seems to show a US military outpost on the Moon and is life in the oceans of Jupiter's moons? Plus Neil Armstrong faces real danger.

Electric. Two pioneers in electric power both aim to develop technologies that reduce carbon emissions - both using electric motors and batteries in aviation and speedboats.

Space. Scientists around the world are working on projects dealing with space and space travel - extraterrestrial life, colonising Mars, the Big Bang and rocket development.

Teleshopping.

Teleshopping.

How do they build the biggest apartment block on the planet? How do they make the classic British boot? How do they make cooking pans last a lifetime.

How do they craft a classic Indian instrument, the Sitar? How do they make beef biltong? Plus, how do they build monster bulldozers.

Edge Of The Universe. Some of the brightest minds and theorists on the planet explore the limits of human knowledge and explain the science behind the rules of the universe.

Death Of The Last Stars. The universe's stars are dying faster than new ones are born. Experts investigate the last stars of the cosmos and what a stellar apocalypse means for Earth.

Monsters Of The Milky Way. 26,000 lightyears away at the heart of the galaxy lies a massive black hole. How can something so far away be studied, and what could it teach scientists.

Rebuilding New York City's Subway. Danny Forster investigates the most important public works project in New York City's history, the $15 billion expansion of the subway system.

London's Olympic Aquatic Stadium. Danny Forster visits the London Aquatics Centre, which hosted 44 swimming and diving events during the 2012 Olympics.

The Dark Evidence. The Inca capital of Cusco was supposedly the site of untold gold and riches. New discoveries reveal the secrets behind this mighty empire's fall.

Viking City Of The Dead. When a Viking fortress lost underground for over 1,000 years is discovered, experts investigate its buried treasures. What caused this civilization's demise.

Pluto's Stranger Things. Did Apollo astronauts hear unexplained transmissions on the far side of the moon? Plus, an astronomer spots a strange disturbance in Martian atmosphere.

Rise Of The Planet Killer. Apollo 12 astronauts bring back something alive from the moon. Plus, NASA track an asteroid heading towards Earth and make a shocking discovery.

A President's Close Encounter. Geysers are discovered on a frozen moon, NASA redirects a probe on a mission to find proof of life, and a future US President is eyewitness to a UFO.

How do they harvest thousands of tonnes of tea? How to they make sure that your luggage catches the same plane as you? How are high-quality hairbrushes made.

How do they keep the crooks from cracking into your credit card? How do they lift a 1000-tonne ship into the air while it is still in the water.

How do they build massive tunnels to prevent blackouts in one of the world's biggest cities? How do they turn pine forest into perfect pieces of timber.

How do they make the favourite sweet of the Ottomans, James Bond's gyroplane and the Supercat- the world's fastest ferry.

How do they carve longboards, turn millions of lemons into juice, and build industry's versatile heavy lifter, the forklift truck.

How do they roast the coffee that wakes up Italy, bake the bricks that build America, and blast diamonds from a frozen volcano.

Discover how wax figures, awnings, sandwich crackers and pewter tankards are made.

Find out how common items like pipe cleaners, blue stilton cheese, smart electric meters and telescopes are made.

Discover how fish replicas, siren systems, pre-packaged sandwiches and candlesticks are produced.

Find out how everyday items such as tapioca pudding, snow ploughs, paddle boats and fibre cement siding are produced.

How do they produce a million tonnes of stainless steel? How do they keep cash safe with an uncrackable lock? How do they make traditional Indian sugar.

Many items that make up the modern world are the result of sophisticated engineering and production processes. How do they do it.

How do they build one of the world's most exclusive luxury cars? How do they make a referee's whistle that can be heard above 50,000 screaming fans.

How do they turn English willow into cricket bats for India's finest cricketers? And, how do they construct the foundations for tall buildings.

Return of the Moon Bugs. Apollo 12 astronauts bring back something alive from the moon and NASA track an asteroid heading towards Earth only to make a shocking discovery.

Ghosts On A Comet. When a Chinese moon rover breaks down, a NASA scientist points to a mysterious material that seemed to sabotage the Apollo missions, decades earlier.

The Moon That Disappeared. Newly discovered documents reveal NASA's secret plan B for failure of the first moon landing. And NASA's Cassini mission unravels a 300-year-old mystery.

American Stonehenge. Rob Nelson investigates the mysterious rocks at the bottom of Lake Michigan known as Underwater Stonehenge. Plus, the search for escape tunnels in Alcatraz.

Mystery Of The Serpent Mound. Rob Nelson investigates mysterious tunnels under Denver's airport. Plus, in Ohio he tries to uncover the secrets of a giant serpent-shaped mound.

Teleshopping.

Teleshopping.

How do they build massive tunnels to prevent blackouts in one of the world's biggest cities? How do they turn pine forest into perfect pieces of timber.

How do they make the favourite sweet of the Ottomans, James Bond's gyroplane and the Supercat- the world's fastest ferry.

Secrets Of Time Travel. The time travelling machines of Hollywood movies offer infinite opportunities, but could time travel ever really be more than science fiction.

How To Build A Planet. Some of the brightest minds and theorists on the planet explore the limits of human knowledge and explain the science behind the rules of the universe.

Earth's Cosmic Journey. Earth is spinning on a tilted axis as it orbits around the Sun. Experts and scientists explain how the planet journeys through the Milky Way.

Constructing Serbia's Longest Bridge. Danny Forster travels to Belgrade to see how the Sava River Bridge, the world's largest single pylon cable-stayed bridge, is progressing.

Azerbaijan's Amazing Transformation. Azerbaijan is reinventing itself after decades as part of the Soviet Union. Danny Forster goes behind the scenes of Baku's construction projects.

Lost Pyramids Of The Americas. At an ancient city lost in the Peruvian desert for 5,000 years, experts find signs of strange rituals. Was it the first civilization of the Americas.

The New Secrets. The Statue of Liberty is the home to dark American mysteries. Now, experts are using the latest science and technology to reveal her secrets.

The Earth Next Door. Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program.

Curse Of The Full Moon. Two cosmonauts fight for their lives, trapped inside a capsule in a frozen lake. NASA astronomers are spooked when the full moon affects their experiments.

Did Earth Have Two Moons? A startling discovery suggests the hellish clouds of Venus may be the origin of life on Earth. Plus, did the Earth once have two moons.

How do they take the world's sharpest photos, stitch an airbag to catch a falling car, and produce billions of perfectly-formed jelly beans.

How do they build a caravan, forge tuning forks, resurface an ice rink, and put on the world's biggest light festival.

How do they make the groovy vinyl LP? How do they build the dodgem? How do they make one of the world's oldest pain remedies, tiger balm.

How do they forge the axe? How do they put together a courier's messenger bag, and how are the fastest lifeboats built.

How do they make Wensleydale cheese, turn pig hair into paintbrushes, and distil aromatic oils from eucalyptus.

How do they build the world's fastest electric car, turn horses' tails into fine fabrics, and clean the largest swimming pools in the world.

Life On The Line. Jason and Siddartha attempt a historic mission to prevent deaths along the perilous Ice Fall, and Lorenz has just minutes to save a local man with a head injury.

Do Or Die. It's the final days of the season and Ryan struggles to locate a woman suffering severe abdominal pains, and Jason battles to reach a collapsed climber in the Death Zone.

Paramedics treat a diver who is experiencing symptoms of decompression sickness. And, a 60-year-old man needs help after a nasty fall.

The Cornwall Air Ambulance crew search the coastline for an injured holidaymaker. And, a cyclist suffers a serious cut to his head.

Pluto's Stranger Things. Did Apollo astronauts hear unexplained transmissions on the far side of the moon? Plus, an astronomer spots a strange disturbance in Martian atmosphere.

Rise Of The Planet Killer. Apollo 12 astronauts bring back something alive from the moon. Plus, NASA track an asteroid heading towards Earth and make a shocking discovery.

A President's Close Encounter. Geysers are discovered on a frozen moon, NASA redirects a probe on a mission to find proof of life, and a future US President is eyewitness to a UFO.

America's Buried Massacre. Rob Nelson hunts for a mass grave that could expose a dark secret. Plus, a giant lake is mysteriously disappearing and Rob set off to find out why.

Rocky Mountain Monsters. Rob examines bizarre markings that suggest a violent clash between prehistoric beasts. In California, he explores if a strange lake is a home to alien life.

Teleshopping.

Teleshopping.

The Alien Mysteries. Half of the star systems in our galaxy have two stars, possibly creating habitats for alien life. Here, binary stars fling entire worlds into space.

Curse Of The Bermuda Triangle. After five planes vanish in the Bermuda Triangle, science points to a strange geological force. And, satellites reveal lost tribes in the Amazon.

Lost Colony Of Roanoke. The Roanoke colony vanished without a trace, and centuries later, it remains one of history's greatest unsolved mysteries. Can new evidence reveal its fate.

More everyday items go under the microscope, revealing their production. How are objects such as squeeze chutes and composite boat propellers made.

More everyday items go under the microscope, revealing their production. How are objects such as retractable saunas and sawmill blade knives made.

More everyday items go under the microscope, revealing their production. How are objects such as plastic model kits and light microscopes made.

More everyday items go under the microscope, revealing their production. How are objects such as gummy vitamins and boat trailers made.

Would you ever believe a skyscraper can melt a car? Justin heads to London's Walkie Talkie building to unearth the science behind this building blunder.

Justin braves the turbulent North Sea as he goes inside an offshore wind turbine to see how engineers are fixing a fault that could cause these structures to fall into the sea.

CIA's Secret Space War. Confidential CIA files reveal a secret war for space between America and the Soviets. And, experts investigate American espionage during the Apollo programme.

Killing Armstrong. Experts investigate the Lunar Landing Research Vehicle that nearly killed Neil Armstrong during training. Some believe this proves why the moon landing is fake.

Rise Of The Ice Giants. New research shows the migration of ice planets may have helped start life on Earth, and stopped it being destroyed. How are they so vital.

The Quasar Enigma. Quasars are the brightest objects in space, powered by black holes, and the most mysterious. How do they shape the universe and ultimately aid in its destruction.

More everyday items go under the microscope, revealing their production processes. How are objects including dumplings and brass faucets made.

More everyday items go under the microscope, revealing their unique production processes. How are objects including saxophones made.

More everyday items go under the microscope. How are objects including prefabricated conservatories and copper cookware made.

More everyday items go under the microscope, revealing their production. How are objects including leaf and debris vacuums, canned meat and fillet knives made.

The Alaskan Loch Ness Monster. A cryptozoologist investigates reports of a sea monster in Alaska. He reviews eyewitness accounts and examines never-before-seen video evidence.

Haunted Cabin And Giants. A woman claims to be under attack from an unseen force. Could it be linked to a Native American legend about a mysterious race of giants.

Tracking Bigfoot. Paul treks deep into the woods of the Midwest in search of Bigfoot. He cuts through hoaxes and misinformation to uncover ground-breaking evidence.

Gateway To Hell. Paul investigates a surge in demonic activity in America that is overwhelming the Catholic Church. He follows leads from Gary, Indiana, to Mineral Wells, Texas.

500 Million Dollar List. Last season, Miklos located a shipwreck tied to Christopher Columbus using Cooper's intel. Now, Miklos has 8 weeks of cash left to find another shipwreck.

Hunt For The Gold Table. After discovering a 1700s-era cannon Darrell seeks the ship's origin. A letter in Gordon's files details a 16th century wreck connected to Sir Francis Drake.

Ghost Ship Of The Damned. Justin and Emiliano investigate a historical English ship filled with stolen treasures that has long been rumoured to be buried deep in a California desert.

More everyday items go under the microscope, revealing their production. How are objects such as plastic model kits and light microscopes made.

More everyday items go under the microscope, revealing their production. How are objects such as gummy vitamins and boat trailers made.

Would you ever believe a skyscraper can melt a car? Justin heads to London's Walkie Talkie building to unearth the science behind this building blunder.

Justin braves the turbulent North Sea as he goes inside an offshore wind turbine to see how engineers are fixing a fault that could cause these structures to fall into the sea.

Teleshopping.

Teleshopping.

NASA Nazi Conspiracy. Experts investigate if there was a conspiracy to fake the moon landing. Does a secret report suggest the Nazis were involved in the Apollo space programme.

The Men Who Beat Alcatraz. In 1962, three convicts try to escape from Alcatraz prison. Officials believe the men drowned, but a scientific experiment suggests they made it to shore.

Flight Of Terror. In 2009, an Air France flight disappears, but could this tragedy happen again? After a huge area of Siberian forest is destroyed, it's a race to find the culprit.

More everyday items go under the microscope, revealing their production. How are objects such as detectable warning panels and model Stirling engines made.

More everyday items go under the microscope, revealing their production. How are objects such as micro drill bits and skiffs made.

More everyday items go under the microscope, revealing their production. How are objects such as ocean drone transformers and 3D puzzles made.

More everyday items go under the microscope, revealing their production. How are objects including Formula F race cars made.

How do they turn used aluminium cans into planes and rockets? Plus, how do they carve the traditional Black Forest cuckoo clock.

How do they build the ultimate car crushing colossus? Plus, how do Lea and Perrins concoct their Worcestershire sauce.

A look at how the amazing, and massive, decorations on Mardi Gras carnival floats are created, how rock candy is twisted together, and a look at how dentures are made.

How do they harvest and treat the world's most expensive tea? Plus, how does the Siekierki power plant of Warsaw, Poland heat half the city's homes.

Building Iron Man. Adam Savage makes his own Iron Man armour suit made from titanium. He wants it to be bulletproof, suitable for flying and able to survive an explosion.

Wheel Of Death. Adam joins forces with a NASA engineer to rebuild a rocket-propelled super weapon. Originally built to breach barbed wire in WWII, they aim to fix its fatal flaws.

In 1969, millions watched Neil Armstrong step onto the moon. But behind these iconic images is an untold story, and the most extensive search for unseen footage ever undertaken.

More everyday items go under the microscope, revealing their production. How are objects including boat radar mounts made.

A look at how everyday items including Asian noodles and rotary engines are made, revealing the unique production processes used in making them.

A look at how everyday items including steel pulleys and acetate eyewear are made, revealing the materials and unique production processes used in making them.

More everyday items go under the microscope, revealing their production. How are objects including gyroscopic stabilizers made.

Ghost Ship Of The Great Lakes. Josh tackles the maritime mystery of the Griffon, the first ship to be lost in the Great Lakes. Josh uses a state-of-the-art submersible in the search.

America's Lost WWII Hero. Josh explores the case of World War II hero Gertrude 'Tommy' Tompkins of the Women Air Force Service Pilots, who went missing when her P-51 Mustang crashed.

We Got Skull. Clay returns to his ranch in Montana to hunt for quick finds at Old Faithful. In Wyoming, Mike and his team continue excavating their triceratops site.

Nano Or T-Rex. In Montana, Clayton prepares to learn if his carnivore skeleton belongs to a T-Rex or Nanotyrannus. In Wyoming, Mike and Aaron dig at a promising new site.

CIA's Secret Space War. Confidential CIA files reveal a secret war for space between America and the Soviets. And, experts investigate American espionage during the Apollo programme.

Killing Armstrong. Experts investigate the Lunar Landing Research Vehicle that nearly killed Neil Armstrong during training. Some believe this proves why the moon landing is fake.

Rise Of The Ice Giants. New research shows the migration of ice planets may have helped start life on Earth, and stopped it being destroyed. How are they so vital.

The Quasar Enigma. Quasars are the brightest objects in space, powered by black holes, and the most mysterious. How do they shape the universe and ultimately aid in its destruction.

How do they turn used aluminium cans into planes and rockets? Plus, how do they carve the traditional Black Forest cuckoo clock.

How do they build the ultimate car crushing colossus? Plus, how do Lea and Perrins concoct their Worcestershire sauce.

A look at how the amazing, and massive, decorations on Mardi Gras carnival floats are created, how rock candy is twisted together, and a look at how dentures are made.

How do they harvest and treat the world's most expensive tea? Plus, how does the Siekierki power plant of Warsaw, Poland heat half the city's homes.

Teleshopping.

Teleshopping.

How do they make the groovy vinyl LP? How do they build the dodgem? How do they make one of the world's oldest pain remedies, tiger balm.

How do they forge the axe? How do they put together a courier's messenger bag, and how are the fastest lifeboats built.

Hunt For Alien Evidence. The discovery of extra-terrestrial life faces a near impossible challenge. Experts explore the problems with proving or disproving the existence of aliens.

The New Threat. If an asteroid collides with the earth it could end life on our planet as we know it. Experts reveal just how close we are to an apocalypse.

Drought-Proofing Australia. Danny heads to Melbourne, where after years of extreme droughts they are securing the future of the city's water supplies with a huge desalination plant.

Amsterdam's Futuristic Floating City. Danny Forster explores some amazing feats of engineering designed by some of the most innovative manufacturers in the industry.

Hunt For The Real Atlantis. A mysterious ruined city in Greece is home to the mythical Labyrinth and the Minotaur. Its catastrophic downfall may have inspired the legend of Atlantis.

Wrath Of Attila The Hun. Attila the Hun was one of history's fiercest warriors, and new evidence reveals if his terror was responsible for the fall of Roman Empire.

Mystery Of The Invisible Planet. A probe mysteriously malfunctions as it enters deep space. Astronomers find evidence of an invisible planet in a distant solar system.

Mars' Deepest Secret. A malfunction on the ISS could poison its crew with a deadly gas. A startling image taken by a NASA probe points to evidence that life could exist on Mars.

Curse Of The Gas Giant. Jupiter is hotter than it should be, and scientists are baffled. There's a strange discovery on Mars and detectives ask for NASA's help on a murder cold case.

How do they feed France's appetite for snails, turn slabs of steel into shiny cutlery, and craft a kayak you can paddle with your feet.

How do they build emergency bridges that can take the weight of a tank, make a marker pen that never fades, and design a 200-mph superbike.

How do they blow the world's finest crystal, heat the deepest swimming pool, and fill a million bottles a day of the world's favourite ketchup.

How do they turn Sheffield steel into a carpenter's handsaw, make a microphone that can pick up a whisper, and safely steer through a frozen river.

How do they mine one of the rarest gemstones in the world, craft the classic cowboy boot, and build a road sweeper that can pick up seven tonnes of trash.

How do they make the world's softest duvets, drill for oil thousands of metres below ground, and put the stretch in rubber bands.

Conspiracy Of The Lost Tapes. The NASA tapes that recorded the Apollo 11 moon landing are missing. Experts examine whether their disappearance is part of a cover-up.

The Hollywood Conspiracy. Some think the waving US flag on the moon proves that NASA faked the lunar landing. Experts' quest for the truth leads to some of Hollywood's biggest names.

The Interstellar Mysteries. Interstellar space is the space between the universe's stars. New discoveries reveal that it's not empty and unremarkable as previously thought.

Did The Big Bang Really Happen? New discoveries lead scientists to question if the Big Bang really happened. They investigate if it was the start of many multiverses.

The Earth Next Door. Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program.

Curse Of The Full Moon. Two cosmonauts fight for their lives, trapped inside a capsule in a frozen lake. NASA astronomers are spooked when the full moon affects their experiments.

Did Earth Have Two Moons? A startling discovery suggests the hellish clouds of Venus may be the origin of life on Earth. Plus, did the Earth once have two moons.

California's Hidden Doomsday. Rob heads to California to investigate a network for major fault lines that could set off a mega-quake. Plus, he explores a mysterious sinkhole.

Secret History of the New World. Rob Nelson investigates a cluster of ancient ruins in New England that suggest Europeans arrived in the Americas almost 1,000 years before Columbus.

Teleshopping.

Teleshopping.

How do they blow the world's finest crystal, heat the deepest swimming pool, and fill a million bottles a day of the world's favourite ketchup.

How do they turn Sheffield steel into a carpenter's handsaw, make a microphone that can pick up a whisper, and safely steer through a frozen river.

Moon. New scientific discoveries reveal that the moon has an incredible, violent, and dynamic history. Was the moon originally more similar to earth than previously thought.

Return of the Moon Bugs. Apollo 12 astronauts bring back something alive from the moon and NASA track an asteroid heading towards Earth only to make a shocking discovery.

Rise of the Ice Creatures. An Apollo 17 photo seems to show a US military outpost on the Moon and is life in the oceans of Jupiter's moons? Plus Neil Armstrong faces real danger.

Building Mumbai's Modern Airport. Danny heads to India to see one of the country's most ambitious undertakings ever, the $2 billion expansion of Mumbai Airport.

Turkey's Mammoth Hydropowered Dam. Danny heads to Turkey where amid the country's most challenging terrain, one of the tallest and strongest dams ever made is being constructed.

Lost World Of Easter Island. The statues of Easter Island were built by one of the world's strangest and most isolated civilizations. New evidence reveals why they were constructed.

Mystery Of The Cursed Pyramid. Egypt's Bent Pyramid is one of the world's most mysterious ancient mega-structures. Was it intended to look so bizarre, or had something gone wrong.

The Sun's Evil Twin. Witnesses photograph two suns in the sky over Indonesia - is this the first sighting of the Sun's dark twin that could spell imminent danger to Earth.

Secret Aliens. Geologists discover alien deposits on the Earth's surface - and the answer could shed light on the cause of the greatest extinction in its history.

Stonehenge On Mars. A NASA probe captures an image of a familiar structure on the surface of Mars. What made 'Mars Henge'? Plus, how did an Apollo astronaut get sick on the Moon.

How do they build a diesel engine that can fly, make cough sweets, turn clear plastic into bank notes, and whip up ice cream flavours.

Morgan Aero Coupe. Ever wondered how a Morgan Aero Coupe was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.

Porsche 911. Ever wondered how a Porsche 911 was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.

Ferrari FF. Ever wondered how a Ferrari FF was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.

Audi R8. Ever wondered how an Audi R8 was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.

Rolls Royce Phantom. Ever wondered a how Rolls Royce Phantom was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.

MMMelee. Using material salvaged from scrap yards, Adam and two colleagues design and build three motorised monsters of destruction, inspired by post-apocalyptic worlds.

Meteorite Sword. Adam wants to build his own version of King Arthur's legendary sword - Excalibur. Using the iron found in a meteorite, he attempts to make an indestructible weapon.

Strangest Things. A look at some of the most mind-blowing footage experts have seen - including see-through animals, algae-powered motorcycles and human sized chickens.

Supernatural. A showcase of Mother Nature's most amazing moments, featuring a man eaten alive by leeches and another who pulls a car with his eye sockets.

Mystery Of The Invisible Planet. A probe mysteriously malfunctions as it enters deep space. Astronomers find evidence of an invisible planet in a distant solar system.

Mars' Deepest Secret. A malfunction on the ISS could poison its crew with a deadly gas. A startling image taken by a NASA probe points to evidence that life could exist on Mars.

Curse Of The Gas Giant. Jupiter is hotter than it should be, and scientists are baffled. There's a strange discovery on Mars and detectives ask for NASA's help on a murder cold case.

Great Lakes Bermuda Triangle. Rob Nelson heads to Lake Michigan to investigate an unexplained, Bermuda Triangle-like phenomenon that has caused ships to disappear for centuries.

Legend Of The Nazi Gold. A legendary train filled with stolen Nazi gold is said to be hidden in Poland. Rob and Stefan explore deep under the earth's surface to uncover the truth.

Teleshopping.

Teleshopping.

Porsche 911. Ever wondered how a Porsche 911 was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.

Ferrari FF. Ever wondered how a Ferrari FF was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.

Return of the Moon Bugs. Apollo 12 astronauts bring back something alive from the moon and NASA track an asteroid heading towards Earth only to make a shocking discovery.

Ghosts On A Comet. When a Chinese moon rover breaks down, a NASA scientist points to a mysterious material that seemed to sabotage the Apollo missions, decades earlier.

The Moon That Disappeared. Newly discovered documents reveal NASA's secret plan B for failure of the first moon landing. And NASA's Cassini mission unravels a 300-year-old mystery.

Former aerospace engineer Justin tries to keep the Glasgow Tower turning, and Tomo helps engineers in Osaka keep their airport from sinking into the sea.

Justin climbs on top of a stadium roof that is held up by air and in danger of collapse. Plus, Jimena Gascon discovers why Mexico City's Metro project has been derailed.

The Last Secrets. A cutting-edge investigation into the sinking of the Titanic reveals new discoveries that could explain the mysteries of her last moments.

Secrets Of The Forbidden City. Archaeologists examine what lies beneath China's Forbidden City, exploring the dark secrets of this mysterious mega-palace buried for nearly 600 years.

CIA's Secret Revenge. When the Soviet Union unveils its own space shuttle, the CIA hatches a revenge plot. Plus, a missing nuclear weapon could threaten a NASA base in the Arctic.

Saturn's Death Star. A NASA spacecraft suffers a malfunction in orbit - can its lone astronaut make it back to Earth? Plus, new evidence emerges over Yuri Gagarin's mysterious death.

Missouri Mayhem. A series of recent UFO sightings brings Chuck Zukowski's team to Missouri, the home of the 1973 Piedmont lights incident. Is history repeating itself.

Maserati Quattroporte. Ever wondered how a Maserati Quattroporte made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.

Weismann MF5. Ever wondered how high-end cars are manufactured? Join the crew as they explore the origins, inner workings and technical specs of some of the world's finest cars.

Lamborghini Aventador. Ever wondered how a Lamborghini Aventador is made? Join the crew as they go to its birthplace and explore its gorgeous exterior.

Jaguar F-Type. Ever wondered how a Jaguar F-Type is made? The team goes to its birthplace, revealing the inner workings and gorgeous exterior.

Bentley Continental GT Speed. Ever wondered how a Bentley Continental GT Speed is made? The team goes to its birthplace, revealing the inner workings and gorgeous exterior.

Alpha Romeo 4C. The How It's Made crew visit the birthplace of the Alpha Romeo 4C, revealing its inner workings and gorgeous exterior.

It Knows We're Here. Mireya's darkest nightmare comes true. Meanwhile, Russell investigates a possible Bigfoot underwater passageway.

The Final Hours. The team believes they've finally narrowed down where Bigfoot has been hiding throughout their expedition. A high-tech drone is brought in to investigate.

The Dark Pyramid. A secret government facility in the wilderness may be hiding an extra-terrestrial pyramid. And, are strange forces in the Triangle making wildlife more aggressive.

Bigfoot Island. Is a Sasquatch colony terrorising the residents of a remote island? And, could decades of UFO sightings suggest that aliens are working with the US military.

The Sun's Evil Twin. Witnesses photograph two suns in the sky over Indonesia - is this the first sighting of the Sun's dark twin that could spell imminent danger to Earth.

Secret Aliens. Geologists discover alien deposits on the Earth's surface - and the answer could shed light on the cause of the greatest extinction in its history.

Stonehenge On Mars. A NASA probe captures an image of a familiar structure on the surface of Mars. What made 'Mars Henge'? Plus, how did an Apollo astronaut get sick on the Moon.

King Solomon's Treasures. Priceless gold and silver artefacts are believed to be lost in King Solomon's hidden mines. Rob and Stefan search for the legendary treasure.

Doomsday Volcano Mystery. Beneath the densely populated city of Naples lies a looming threat. A super volcano may be on the verge of erupting and cause an apocalyptic catastrophe.

Teleshopping.

Teleshopping.

Lamborghini Aventador. Ever wondered how a Lamborghini Aventador is made? Join the crew as they go to its birthplace and explore its gorgeous exterior.

Jaguar F-Type. Ever wondered how a Jaguar F-Type is made? The team goes to its birthplace, revealing the inner workings and gorgeous exterior.

Pluto's Stranger Things. Did Apollo astronauts hear unexplained transmissions on the far side of the moon? Plus, an astronomer spots a strange disturbance in Martian atmosphere.

Rise Of The Planet Killer. Apollo 12 astronauts bring back something alive from the moon. Plus, NASA track an asteroid heading towards Earth and make a shocking discovery.

A President's Close Encounter. Geysers are discovered on a frozen moon, NASA redirects a probe on a mission to find proof of life, and a future US President is eyewitness to a UFO.

Justin uncovers the truth behind a landslide that wiped out a ski-jump resort in Turkey, before jetting off to Gibraltar to see an airport runway built across a road.

Would you ever believe a skyscraper can melt a car? Justin heads to London's Walkie Talkie building to unearth the science behind this building blunder.

Forbidden City Of The Pharaohs. The city of Thebes was the religious centre of Egypt's New Kingdom. How did workers construct the largest religious site in the ancient world.

Egypt's Lost Skyscrapers. A pioneering experiment shows how ancient Egyptians built the giant obelisks of Thebes. New findings suggest how they prompted the downfall of the pharaohs.

UFO Terror. A Missouri man who claims UFOs are stalking him contacts Chuck and the team for help. Their investigation uncovers a dark secret which may explain this reported activity.

Murder On The Prairie. A series of strange animal deaths and UFO sightings brings Chuck to Colorado. Reports of authorities ignoring these incidents suggest a government cover-up.

UFO Recovery. Chuck receives a map supposedly leading to a hidden cache of recovered materials from the Roswell incident. He and his team go on an epic treasure hunt to find them.

Pagani Huayra. Join the How It's Made crew as they visit the birthplace of the Pagani Huayra, revealing its inner workings and gorgeous exterior.

Caterham Seven. Join the How It's Made crew as they visit the birthplace of the Caterham Seven, revealing its inner workings and gorgeous exterior.

Bugatti Veyron. Join the How It's Made crew as they visit the birthplace of the Bugatti Veyron, revealing its inner workings and gorgeous exterior.

Morgan 3-Wheeler. The crew head to the birthplace of the Morgan 3-Wheeler in England where the car's inner workings and gorgeous exterior are examined.

Ginetta G40. Ginetta and Team LNT are synonymous with racing, making headway in auto racing history for decades. The crew head to its birthplace, revealing the inner workings.

Lucra LC470. The Lucra LC470 is a lightweight supercar with heavyweight power. What design choices make this stunning vehicle so durable, agile and fast.

Discover how everyday items such as cufflinks, blueberry turnovers, dashboards and earthenware pottery are made.

Everyday items go under the spotlight. How pharmaceutical blister packs, deli slicers and weather vanes are made.

Top and bowler hats, solar water heaters, sticky buns and electrostatic speakers go under the microscope.

Discover how everyday items such as turntables, steam engines, playground equipment and non-stick pans are made.

How do they build a tractor every three minutes to power Indian agriculture? How do they cast the bronze bells that help Swiss farmers keep track of their cows.

How do they collect millions of real birds' nests to make birds' nest soup? Plus, how do they use aerospace technology to make rowers go faster.

How do they quadruple the power of the world's biggest engines with the most powerful turbochargers? How do they build new roads from old waste plastic.

How do they harness the wind to power a racing yacht to Olympic gold? How do they make a sword fit for an officer at the world's largest sword factory.

CIA's Secret Revenge. When the Soviet Union unveils its own space shuttle, the CIA hatches a revenge plot. Plus, a missing nuclear weapon could threaten a NASA base in the Arctic.

Saturn's Death Star. A NASA spacecraft suffers a malfunction in orbit - can its lone astronaut make it back to Earth? Plus, new evidence emerges over Yuri Gagarin's mysterious death.

Missouri Mayhem. A series of recent UFO sightings brings Chuck Zukowski's team to Missouri, the home of the 1973 Piedmont lights incident. Is history repeating itself.

The Dark Evidence. The Inca capital of Cusco was supposedly the site of untold gold and riches. New discoveries reveal the secrets behind this mighty empire's fall.

Viking City Of The Dead. When a Viking fortress lost underground for over 1,000 years is discovered, experts investigate its buried treasures. What caused this civilization's demise.

Teleshopping.

Teleshopping.

Bugatti Veyron. Join the How It's Made crew as they visit the birthplace of the Bugatti Veyron, revealing its inner workings and gorgeous exterior.

Morgan 3-Wheeler. The crew head to the birthplace of the Morgan 3-Wheeler in England where the car's inner workings and gorgeous exterior are examined.

The Earth Next Door. Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program.

Curse Of The Full Moon. Two cosmonauts fight for their lives, trapped inside a capsule in a frozen lake. NASA astronomers are spooked when the full moon affects their experiments.

Did Earth Have Two Moons? A startling discovery suggests the hellish clouds of Venus may be the origin of life on Earth. Plus, did the Earth once have two moons.

Justin braves the turbulent North Sea as he goes inside an offshore wind turbine to see how engineers are fixing a fault that could cause these structures to fall into the sea.

Justin's in for a bumpy ride as he investigates gigantic potholes in Louisiana. Later, he heads to London to get a sneak preview of London's vast Crossrail project.

Ghosts Of The Stone Age. New discoveries at a strange prehistoric site reveal the dark secrets and rituals of the mysterious people who built the world's largest stone circle.

Lost City Of The Maya. Hidden deep in the Guatemalan jungle is the lost city of Tikal, once home to over 100,000 people. How did this small village rise to become a Maya superpower.

Legend Of The Skinwalker. A recent creature sighting outside the infamous Skinwalker Ranch brings Chuck and the team to Utah to investigate. Evidence indicates it might be an alien.

SoCal Clusters. An ongoing series of UFO sightings off the Southern California coastline leads Chuck and the team to examine the link between UFOs, the military and the ocean.

Arizona Anomalies. A recent UFO sighting in Phoenix leads Chuck and the team to Sedona, AZ. They explore whether the area's energy vortexes act as portals for otherworldly visitors.

Chevrolet Corvette Stingray. The Chevrolet Corvette Stingray is a fast and lightweight update on an automobile legend from the 1960s. How is this impressive vehicle constructed.

KTM X-Bow. Heavily inspired by superbike designs, the KTM X-Bow is always road and race ready. What elements come together to create this powerful and innovative vehicle.

Tesla Model S. The Tesla Model S is a high-performance and high-speed vehicle with zero emissions. What goes into the construction of this innovative electric car.

Superformance MKIII. The Superformance MKIII draws inspiration from the Shelby Cobra to be an impressive combination of style and power. How is this stunning vehicle made.

Koenigsegg One:1. The Koenigsegg One:1 is a record-breaking mega car that has a perfect power to weight ratio. How is this cleverly designed car put together.

BMW i8. The BMW i8 is a hybrid car that looks and performs like a supercar. How does this high-performance vehicle achieve its outstanding fuel economy.

Curse Of The Jungle. Andy tries to survive a remote tropical jungle in Hawaii. Making his electronic equipment work in this environment pushes his hacking skills to the limit.

Desert Island Castaway. Andy is stranded alone on an island in the Pacific Ocean, and with a tropical storm looming, he must use his tech to find food and stay alive.