Known as the "Southern Gates of Hell" the team are on the hunt at Sloss Furnaces in Alabama, a place that claimed the lives of countless workers.

The team returns to Oregon to investigate a record amount of Bigfoot tracks. Can a new dangerous technique help to capture this elusive creature?

A team of researchers seeks answers to mysteries surrounded the Mothman. They explore theories that the legendary cryptid is an abnormality in the evolutionary chain.

Don Wildman investigates an ancient lost city, a record-breaking race around the world and a journey on snowmobile to the North Pole.

The brothers trek through snow and relentless terrain in pursuit of a legendary Aztec treasure. What is rumoured to be hidden in the Utah mountains?

Chris and Casey Keefer travel to Ecuador in search of a colony of giants. They trek through the dense jungle, looking for clues leading to the lost civilisation.

Casey and Chris are on the road to El Dorado. Using clues left behind by Percy Fawcett, they head deep into the Amazon in search of the lost City of Gold.

Josh Gates travels to Greece to find out exactly how the mighty Minoan civilization disappeared from the ancient world.

Josh Gates joins leading archaeologists as they investigate America's first missing-persons case, The Lost Colony of Roanoke.

Most of the Founding Fathers and fourteen Presidents were Freemasons. Some say Washington DC is laid out as a Masonic code. What other secrets are the Masons hiding?

Discover the truth behind one of society's most clandestine institutions. Hidden within these bordellos are secrets about famous patrons, governments, and even religion.

The truth behind America's secret bunkers - from backyard boxes to government mini-cities. Underground bunkers have featured in war planning since the dawn of time.

We'll explore a conspiracy that helped three inmates escape the dungeon of Alcatraz, and discover the remnants of a mysterious military outpost linked to Abraham Lincoln.

Discover the truth behind the UFO cover up. Did a Nazi flying saucer crash in New Mexico? Are aliens living at Area 51? Or are these rumours to hide the real story?

Gold is one of the most valuable treasures on Earth. Since ancient times, man has gone to extreme lengths to get it. But where is most of the gold today, and who owns it?

December 7th, 1941 - a day of infamy that changed America forever. But was the attack really a surprise? What did Franklin Roosevelt know about the attack beforehand?

Outlaw bikers are often secretive organisations. But are they international crime syndicates, or social clubs for outcasts and nonconformists? Discover the truth.

When Myke and Ruth are trapped in the burning woodland of backcountry Louisiana, they must dodge falling trees, try to construct a fire shelter, and dine out on armadillo.

In Gold Run, a power struggle erupts between SJ and John over mining locations. With the season's end looming, can their problems be set aside?

Most of the Founding Fathers and fourteen Presidents were Freemasons. Some say Washington DC is laid out as a Masonic code. What other secrets are the Masons hiding?

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

Pilot Fred Valentich saw possible UFO life forms and subsequently disappeared - what happened? Plus what are the weird blue creatures terrorizing Texas?

The Klinge brothers investigate the grounds of an abandoned amusement park with a deadly history. Are the children who died here still haunting the fun park?

The Klinge brothers investigate the notorious West Virginia Penitentiary; are long dead prisoners still haunting its cells? Plus, an Ohio home is haunted.

Don Wildman investigates a new theory about the Titanic sinking, a starlet's big break and more.

The Ghost Brothers are in Indiana to investigate paranormal claims at historic Thornhaven Manor. Is the activity caused by the murder victim and his family members?

Is there an explanation for the gruesome death of nine young Russian adventurers in the Ural Mountains in 1959? And in Siberia 50 years on has there been another sighting?

Two officers witness the start of a monstrous legend, a patrolling officer faces the ghost of a Civil War soldier and helicopter pilots try to outrun a UFO.