Dresden Firestorm. The Allies' bombing of the German city of Dresden was one of the most controversial of WWII. Rare archive footage tells the story as it's never seen before.

Morris Minor Traveller & Maserati Ghibli. The boys find a Morris Traveller at the largest private car collection in the UK. And, in Surrey they spot a rare but affordable Maserati.

Secrets And Spies. Bruce dives into the murky secrets of World War II spies. In Italy, he unearths an iconic code-breaking machine. In the UK the lads revive two rocket launchers.

Vesuvius's Secret Victim. When Pompeii was destroyed by an apocalyptic volcano, another town was destroyed, too - Herculaneum. It is one of history's most perfectly preserved towns.

Rome's Great Wall. The Roman Empire built Hadrian's Wall to guard its frontiers; new discoveries reveal who the Romans were trying to keep out with this 72-mile-long megastructure.

Lindbergh's Lost Rival. Josh goes on an international search for history's most famous lost plane. Chasing new leads, he scours two continents to find the lost 'White Bird.'.

Outlaw Fortune. Josh heads to the Wild West in search of the hidden loot that was heisted by the infamous group of lawmen turned criminals, the Dalton Gang.

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.

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?

Lake Of The Dead. Phil and Jessica head to Lake Lanier - the deadliest lake in America - to uncover rumours of drownings and ghostly encounters.

Battle Of The Sexes, And More. Don Wildman investigates the story behind an epic match on the tennis court, a bizarre brawl between clowns and an attempt to cross the Berlin Wall.

Etch A Sketch And More. Don Wildman explores the story behind one of the world's best-selling toys, the hunt for a notorious bank robber and a global phenomenon.

Moons. Are moons the most likely place to find life beyond the Earth? Explore the 300 that lie within our solar system and find out about Earth's turbulent past.

Dresden Firestorm. The Allies' bombing of the German city of Dresden was one of the most controversial of WWII. Rare archive footage tells the story as it's never seen before.

War Of The Ancients. Archaeologists use new digital technology to try and solve the mystery behind an ancient burial ground filled with bones, swords, an axe and more in Germany.

How do they make playing cards that can defeat a cheat? How do they brew a billion bottles of lager a year? And how do they make the world's most luxurious private jets?

How do they put the holes in Swiss cheese? How do they restore and improve a classic battle tank? And how do robotic librarians run one of the world's biggest book collections?

In New York, a construction crane crashes into an iconic bridge. Tragedy strikes a massive television tower in Texas. Boston's water supply crumbles.

Battle Of The Sexes, And More. Don Wildman investigates the story behind an epic match on the tennis court, a bizarre brawl between clowns and an attempt to cross the Berlin Wall.

Etch A Sketch And More. Don Wildman explores the story behind one of the world's best-selling toys, the hunt for a notorious bank robber and a global phenomenon.

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?

Lindbergh's Lost Rival. Josh goes on an international search for history's most famous lost plane. Chasing new leads, he scours two continents to find the lost 'White Bird.'.

Outlaw Fortune. Josh heads to the Wild West in search of the hidden loot that was heisted by the infamous group of lawmen turned criminals, the Dalton Gang.

Teleshopping.

Teleshopping.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

Paras. Ex-paras Bruce Crompton and Freddie Kruyer explore the troops' vital role in defeating the Germans in WW2. They collect authentic gear and uniforms before they jump.

Jaguar XJS & Renault 4. In rural Devon the boys fall for the Gallic charm of a Renault 4. It's a rare limited-edition model - can Drew and Paul replicate its unique interior fabric?

Nazi Occupied Britain. Bruce heads to a Martello Tower on the Channel Islands. Plus, the twins must get a WWII Napalm filled flamethrower ready for a buyer.

Hitler's Lost Bunker. The underground bunker of Adolf Hitler is home to some of the greatest secrets of the Nazi regime. Experts use cutting-edge technology to uncover new evidence.

The New Mystery. The Leaning Tower of Pisa is one of the world's most iconic buildings, but why does it lean? Investigators uncover the reasons for its tilt.

Buried Secrets Of Hitler. Josh jets to Poland to open a secret Nazi tunnel in a dormant volcano. He helps tear away a stone wall built by the Germans in the last days of WWII.

Buried Secrets Of The Nazis. Josh rafts into an abandoned tunnel system to chase art and treasure stolen by the Third Reich. Later, he searches for a buried Nazi Enigma machine.

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.

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.

Ghosts In The Swamp. The team investigate a Texas swamp. The area is filled with snakes but what frightens Phil and Jess are mysterious lights that have haunted locals for decades.

Leonardo's Parachute And More. Don investigates the story behind the invention of the parachute, a blizzard that threatened 13 young students and musical legend's humble beginnings.

Titanic Orphans And More. Don investigates a mystery surrounding two young survivors of the Titanic and a diabolical plot to assassinate one of the world's most influential people.

Secrets Of The Sun. Some of the brightest minds and theorists on the planet explore the limits of human knowledge and explain the science behind our star.

Paras. Ex-paras Bruce Crompton and Freddie Kruyer explore the troops' vital role in defeating the Germans in WW2. They collect authentic gear and uniforms before they jump.

Mystery On Easter Island. Archaeologists use new digital technology to understand the ancient moai statues of Easter Island and the purpose behind their mysterious placement.

How do they persuade an oyster to grow a perfect pearl? How do they put the twist in classic Pennsylvania pretzels? And how do they build Venice's traditional gondolas?

Japanese scientists stimulate oysters to form perfect pearls. Handcrafted pretzels are made with a twist. Workers maintain the craft of the gondolier.

In Miami, a major disaster leaves a nation in mourning. In Canada, a gaping hole opens in the middle of the nation's capital, Ottawa.

Leonardo's Parachute And More. Don investigates the story behind the invention of the parachute, a blizzard that threatened 13 young students and musical legend's humble beginnings.

Titanic Orphans And More. Don investigates a mystery surrounding two young survivors of the Titanic and a diabolical plot to assassinate one of the world's most influential people.

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.

Buried Secrets Of Hitler. Josh jets to Poland to open a secret Nazi tunnel in a dormant volcano. He helps tear away a stone wall built by the Germans in the last days of WWII.

Buried Secrets Of The Nazis. Josh rafts into an abandoned tunnel system to chase art and treasure stolen by the Third Reich. Later, he searches for a buried Nazi Enigma machine.

Teleshopping.

Teleshopping.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

Tanks. Bruce and his team embark on a tour across Europe to buy and restore some of WW2's rarest tanks. Later, he shows off his famous Sherman in a home-movie re-enactment.

Fiat 500 & NSU Ro80. Salvage aficionado Drew Pritchard visits Britain's oldest number plate maker. And, Paul and Drew disagree about adding a mega engine onto a tiny Italian classic.

The Italian Job. Bruce and Hus are on an Italian road-trip. From Venice to Lake Garda they meet up with dealers whose objects tell the incredible story of Italy in WWII.

Ghosts Of The Wild West. The infamous gunfight at the O.K. Corral only lasted 30 seconds. Now, experts use cutting-edge technology to uncover the mystery surrounding the event.

The New Evidence. The Tower of Babel is one of the most famous stories of the Bible. Archaeologists use new technology to uncover how engineers could have built it.

Knights Templar Treasure Hunt. Josh digs in to unearth the secret world of the Knights Templar. He joins an excavation of a rare Templar gravesite in eastern Europe.

Chasing Everglades Treasure. Josh digs into the swamp to hunt the lost fortune of notorious bootleggers and bank robbers, the Ashley Gang. He re-traces the family's criminal empire.

Curse Of The Red Planet. Three cosmonauts die mysteriously as they re-enter Earth's atmosphere. Plus, a NASA rover discovers clues that help solve a murder.

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.

Terror Of The Bell Witch. The team investigates one of America's oldest witch stories. In the backwoods of Tennessee, locals report being attacked in a vast cave system.

Luckiest Lucy Cat And More. Don explores how a feline saved a trainline, NASA's mission to save the Voyager 2, and one man's quest to bring movies to the masses.

Invention Of The Doughnut. Don Wildman investigates the origins of one of America's favourite treats, a plot unrolled by Cleopatra and the world's most dangerous balloon race.

Mystery Of Planet 9. Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life?

Tanks. Bruce and his team embark on a tour across Europe to buy and restore some of WW2's rarest tanks. Later, he shows off his famous Sherman in a home-movie re-enactment.

Maze Of Cryptic Terror. Archaeologists use state-of-the-art digital technology to uncover the truth behind a cave wall in Nottinghamshire, England. What do the unusual symbols represent?

Roulette wheels are made to be perfectly unpredictable. The secrets behind the purest olive oil are revealed. An old wreck is made into the Batmobile.

The largest football stadium in the United States is turned into an ice hockey rink. Plus, robots are programmed to mass-produce cars.

In Pennsylvania, Mother Nature destroys a major bridge. A construction catastrophe in a New York neighbourhood rocks the community.

Luckiest Lucy Cat And More. Don explores how a feline saved a trainline, NASA's mission to save the Voyager 2, and one man's quest to bring movies to the masses.

Invention Of The Doughnut. Don Wildman investigates the origins of one of America's favourite treats, a plot unrolled by Cleopatra and the world's most dangerous balloon race.

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.

Knights Templar Treasure Hunt. Josh digs in to unearth the secret world of the Knights Templar. He joins an excavation of a rare Templar gravesite in eastern Europe.

Chasing Everglades Treasure. Josh digs into the swamp to hunt the lost fortune of notorious bootleggers and bank robbers, the Ashley Gang. He re-traces the family's criminal empire.

Teleshopping.

Teleshopping.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

Gloucestershire. The team is in Gloucestershire to uncover some oily treasure. They find a picturesque farm where deer, goats and pigs mingle with vintage agricultural equipment.

Suffolk. Henry and Sam are in Suffolk where they find a barn filled with Porsche tractors, Ducati pushbikes and many more rare and surprising vehicles.

Witney. Henry and Sam head to Witney where they meet Lez, a model-builder extraordinaire, and come away with an unusual challenge. Can they make a tidy profit for Lez's trike?

Stormy Weather, Hidden Treasure. At a wind-swept farm on a hill top in Cornwall, Henry and Sam find a collection of cars and tractors and a very rare German scooter.

Arnhem. Bruce hears about some second world war British airborne division gear from the battle of Arnhem for sale, which is of big interest to ex-paratroopers like him and Freddie.

VE Day Special. Bruce Crompton marks the 75th Anniversary of VE Day, sending rare German halftrack vehicles to partake in a battle re-enactment. In France, he seeks VE Day relics.

Charismatic Bruce Crompton and his team, buy, repair and sell World War II military gear, travelling the world in search of rare artefacts to restore and sell.

Ploughman's. Henry and Sam rummage through a tractor enthusiasts heaven, sheds and fields full of old machines. Their attention is caught by an old vintage plough.

Army Trailers And Trinkets. Henry and Sam find themselves down in the South West rummaging around another belting shed. There are so many things on offer they find it hard to choose.

Steam, Bicycles And Metal Rolling. In Cornwall, Henry and Sam find some very rare early-1900s steam-powered cars. If they're very lucky, the duo might even get to ride in one!

Signs And Wonders. In Somerset, Henry and Sam visit a man with an amazing collection of motorbikes. He has some rare finds, but are they too expensive for the guys?

Riding Shotgun. Henry and Sam are in Suffolk, checking out a collection of vintage bikes. Henry has his eye on petrol pumps, but Sam has other ideas after seeing the sidecars.

Spoilt For Choice. In Lowestoft, Henry and Sam can't believe their luck when they check out Charlie's wares. He has everything from cars and bikes to stationary engines.

Basketball Champ. Arcade game expert Dr Pinball restores a rare 1940s American basketball game. And, artist Nick replasters and repaints a vintage life-size model bull.

Doctor Who Sofas. Upholsterer Craig tries to save a pair of sofas used in the Dr Who TV series. Plus, blacksmith Nev turns a pair of streetlamps into statement lights for the home.

Automata Acrobatics. Automata artisans Michael and Maria restore an acrobatic figurine from France. Meanwhile, sculptor Nick revives a pair of fairground ride motorbikes.

The Next Supernova. Our galaxy is full of stars waiting to explode into supernovas, an event that could destroy all life on Earth. Experts hunt for the next deadly supernova.

Secret Lives Of Neutrinos. Neutrinos are the most mysterious particles in the universe. New discoveries reveal their significance and how they pass through objects undetected.

Gravitational Waves Revealed. Gravitational waves are helping scientists explore the cosmos in new ways. How are these discoveries helping to reveal the universe's mysteries?

SR-71 Blackbird- Hypersonic Surveillance. Lockheed were tasked with creating a plane invisible to Russian radar, capable of reaching an altitude of 80,000 ft and speeds of Mach 3.2.

DC-3. Emerging as a rival to Boeing's 247, the rigorously tested twin-engine DC3 would eventually radicalise the aviation industry in 1934.

Airbus A380- Giant Of The Sky. This double-decked monster was designed to carry 800 passengers and revolutionise the highways of the sky, so why did it take 17 years to lift off?

Seven Wonders Of America. Experts investigate seven of America's most iconic modern-day megastructures. How were these engineering marvels built and what secrets do they conceal?

Arnhem. Bruce hears about some second world war British airborne division gear from the battle of Arnhem for sale, which is of big interest to ex-paratroopers like him and Freddie.

VE Day Special. Bruce Crompton marks the 75th Anniversary of VE Day, sending rare German halftrack vehicles to partake in a battle re-enactment. In France, he seeks VE Day relics.

Charismatic Bruce Crompton and his team, buy, repair and sell World War II military gear, travelling the world in search of rare artefacts to restore and sell.

Teleshopping.

Teleshopping.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

Hot Rods, Trucks And Miniature Bikes. In East Sussex, Henry and Sam visit a dedicated collector of American vehicles. His collection includes hot rods, trucks and other quirky items.

Everything But The Kitchen Sink. In Cornwall, Henry and Sam visit a trials car enthusiast with an eclectic set of sheds. Will they come away with a jeep, a bike or something else?

A Right Royal Profit? Henry and Sam are in Cornwall visiting the Queen's armourer, Terry English, and his amazing collection of vintage cars, bikes and engines. What will they find?

Classic, Rare And Beautiful. In the West Country, Henry and Sam find some sheds full of classic bikes and vintage cars. They even find a limousine once owned by Eva Peron.

Las Vegas. Why was Las Vegas a Nazi target for wartime sabotage, a test ground for Atomic Bombs, and a meeting place for 9/11's terrorists?

American Nazis. From the rallies held at Madison Square Garden, to the plots to steal the secrets to the nation's weapons of war, the American Nazis terrorised the USA in the 1930s.

Ancient Astronauts. Did aliens help build the Pyramids? Or does the 'ancient astronauts' idea go back to Swiss author Erich von Daniken, whose books challenge religion and science?

SAS. A Hollywood blockbuster needs an authentic WWII SAS jeep within two weeks. It's a tight deadline but Bruce is determined to meet it, as the wartime SAS is a passion of his.

Cold War. Bruce heads to a cold war underground bunker that has been converted to a museum. The curator is looking for some Soviet era equipment to tell the other side of the story.

Arnhem. Bruce hears about some second world war British airborne division gear from the battle of Arnhem for sale, which is of big interest to ex-paratroopers like him and Freddie.

New Zealand - Part 2. Henry Cole continues his adventure through the South Island, New Zealand. His route takes him through primeval forests and beautiful coastal towns.

Australia - Part 1. Motorcycle enthusiast Henry Cole braves Sydney's rush hour traffic on his bike and heads 520 miles south west to Melbourne. He has many adventures along the way.

Australia - Part 2. Motorcycle enthusiast Henry Cole is riding up towards Adelaide along the Great Ocean Road. He enjoys amazing once-in-a-lifetime experiences on the journey.

Lost World Of Sumerian Kings. Kish, Iraq, lies at the cradle of human civilisation. Experts investigate the buried secrets of this lost city to uncover the first origins of royalty.

Rise Of Egypt's Sun Kings. The ancient necropolis of Abusir contains strange megastructures unlike any in Egypt. Experts gain access to investigate lost tombs and forgotten rituals.

Secrets Revealed. Stunning CGI animation and the latest archaeological investigations reveal how the most iconic buildings of the ancient worlds were built, stone by stone.

Over The Moon. Sculptor Nick works on a fairground centrepiece. French polisher Alex transforms a mill trolley, and upholsterer Craig revamps a battered armchair.

Settle Down. French polisher Alex is challenged to rescue a settle bed. James restores a Ms. Pac-Man arcade machine, while Ted works on two weathered chairs.

Pedigree Pooches. Sculptor Nick is tasked with transforming a pair of headless garden ornaments. And, Drew asks leather restorer Martin to revamp an Avro Anson chair.

Stuck In The Mud. In Worcestershire, Henry and Sam meet a farmer with a shed full of bikes that don't appeal to the guys. However, there's a surprise waiting in a nearby field.

Bike, Bike, Bike.Boat? Henry and Sam are in Yorkshire looking at a collection of Triumph motorcycles that are a bit out of their price range. But is there something else to find?

Ray Day. Henry and Sam visit a shop hoping to sell a bike and get side-tracked by the wares on offer. Will they manage to find some good bargains amongst all the delights?

Lancashire Hotpot. Henry and Sam are near Preston, visiting a collector of military gear and Americana. Much to their surprise they spot something a little unusual.

SAS. A Hollywood blockbuster needs an authentic WWII SAS jeep within two weeks. It's a tight deadline but Bruce is determined to meet it, as the wartime SAS is a passion of his.

Cold War. Bruce heads to a cold war underground bunker that has been converted to a museum. The curator is looking for some Soviet era equipment to tell the other side of the story.

Arnhem. Bruce hears about some second world war British airborne division gear from the battle of Arnhem for sale, which is of big interest to ex-paratroopers like him and Freddie.

Teleshopping.

Teleshopping.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

U-505 was the only U-boat captured by the US Navy during WWII. Relive the battle, and its aftermath, through archive footage and personal accounts from sailors.

Range Rover & Porsche 944. On a trip to Barcelona to buy antiques Drew uncovers an early, two-door Range Rover. In Hampshire, Paul and Drew disagree on how to restore a Porsche 944.

Hidden Heroes Of D-Day. Bruce uncovers plans for the D-Day invasion, there's a bumpy landing for a Dakota aeroplane, and in France his passion hits new heights with a parachute jump!

Lost City Of Troy. Troy is the legendary lost city at the centre of the Trojan War, but its existence was never confirmed. New cutting-edge technology explores the ancient myth.

The Hidden Secrets. Mount Rushmore is one of North America's most iconic landmarks. Experts use cutting-edge technology to reveal what lies beneath the rock.

Mysteries Of Moses. Josh looks to answer enduring questions around Moses' existence. He opens an ancient Egyptian tomb and treks what could be the true Mount Sinai.

Chasing The Mysteries Of Moses. Josh re-traces Moses' steps from Mount Sinai to the Israeli desert. He dives the Sea of Galilee and investigates what could be Moses' tomb.

Red Storm Rising. Two astronauts trapped in the vacuum of space face an agonising death. Plus, the first close up images of Pluto reveal an alien landscape.

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?

Devil In The Forest. The team head to the woods of southern New Jersey to hunt for the infamous Jersey Devil, reported to have terrorised locals for more than 300 years.

Real Life Lassie And More. Don Wildman investigates a heroic hound, a Soviet agent who hid in plain sight and the disastrous voyage of the Andrea Doria - a luxury liner.

Million Dollar Dinner And More. Don Wildman investigates an ancient queen who drank a very expensive cocktail, an unusual box discovered by a farmer and an American colonel.

The Universe's Deadliest. The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe?

U-505 was the only U-boat captured by the US Navy during WWII. Relive the battle, and its aftermath, through archive footage and personal accounts from sailors.

Legend Of The Cursed Temple. New digital technology reveals the origins of two mysterious Egyptian mummies. And, a ground-breaking survey uncovers a macabre Iron Age practice.

Over a century of Italian craftsmanship is squeezed into an accordion. Workers create callers that make duck hunters sound just like their prey.

Workers manufacture toilets that massage and blow-dry. The Navy tests a pilotless helicopter. A jackhammer that doesn't cause the shakes is built.

In Italy, chaos ensues as a crane collapses on a major construction project. In Massachusetts, a high-rise building comes crashing down.

Real Life Lassie And More. Don Wildman investigates a heroic hound, a Soviet agent who hid in plain sight and the disastrous voyage of the Andrea Doria - a luxury liner.

Million Dollar Dinner And More. Don Wildman investigates an ancient queen who drank a very expensive cocktail, an unusual box discovered by a farmer and an American colonel.

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?

Mysteries Of Moses. Josh looks to answer enduring questions around Moses' existence. He opens an ancient Egyptian tomb and treks what could be the true Mount Sinai.

Chasing The Mysteries Of Moses. Josh re-traces Moses' steps from Mount Sinai to the Israeli desert. He dives the Sea of Galilee and investigates what could be Moses' tomb.

Teleshopping.

Teleshopping.

Your one-stop-shop for all things cruise; bringing you the hottest destinations, ground-breaking ships and the latest deals to ensure your next cruise is your greatest one.

SR-71 Blackbird- Hypersonic Surveillance. Lockheed were tasked with creating a plane invisible to Russian radar, capable of reaching an altitude of 80,000 ft and speeds of Mach 3.2.

Volvo 122S Amazon & Toyota MR2. Drew and Paul check out a Swedish classic: the Volvo Amazon. And, Paul falls for an early Toyota MR2, but can he convince Drew it will turn a profit?

The Pink Panther. Bruce gets hold of an extremely rare, and valuable, German Panther tank - and its original undercoat is more pink than camouflage. But getting parts is a struggle.

Curse Of The Hindenburg. What caused the Nazi aircraft to explode into a giant ball of fire over New Jersey in 1937? Experts use cutting-edge technology to investigate the event.

Bermuda Triangle Apocalypse. Cutting-edge technology is helping experts investigate the Bermuda triangle. Using new techniques, they search for evidence of aliens on the ocean floor.

Egypt's City Of The Dead. Josh completes his Saqqara necropolis dig investigating the collapse of Egypt's Old Kingdom. Opening several tombs, he finds treasure and haunting remains.

Donner Party Horror And Heroes. Josh treks the punishing Donner Pass. He uncovers how desperate pioneers trapped by blizzards in the Sierra Nevada mountains turned to cannibalism.

Attack Of The Thunderballs. Astronauts are evacuated when a mystery object is discovered hurtling towards the ISS. Plus, a secret agent goes undercover to recover missing moon rocks.

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?

America's Lake Monster. Phil and Jess investigate a 30-ft serpent that's been spotted in Lake Champlain for generations. A dangerous dive uncovers new evidence.

Roosevelt's Badlands Bandits. Don examines an accident that nearly caused a nuclear catastrophe, how Teddy Roosevelt laid down the law with bandits and a Hollywood murder mystery.

Great Panjandrum And More. Don investigates a rocket-powered wheel that took on the Nazis, an infamous outlaw with a heart of gold and an intrepid climber who scaled a skyscraper.

The Secret Origin. Supermassive black holes are so large they devour stars and shape galaxies. The latest science may answer why they grow so large.

SR-71 Blackbird- Hypersonic Surveillance. Lockheed were tasked with creating a plane invisible to Russian radar, capable of reaching an altitude of 80,000 ft and speeds of Mach 3.2.

Gladiator Graveyard. New digital technology reveals secrets about the origins of Machu Picchu. And, laser technology uncovers the truth behind some hidden treasure.

The secrets behind keeping the cars of Daytona on the track for 24 hours of racing are revealed. The sweetest sugarcane is turned into Caribbean rum.

Giant sturgeons are farmed for the delicacy of Russian caviar. Workers create soccer cleats worn by the sport's greatest players.