Could aliens have told Joan of Arc how to beat the English army? And could a US serviceman have received a message when he touched a spaceship? Experts investigate.

Gold Hunters: Legend Of The Superstition...

Hunting for the Lost Dutchman is usually a one-man journey, but Wayne Tuttle is partnering with a team of experts to follow a newly-revealed clue that could finally solve the 500-year-old mystery of America's most famous buried treasure.

Tales of Bigfoot sightings are reported globally but the Alaskan version is the most extreme, standing over 14 feet tall. Is this massive, aggressive creature targeting people in the Alaska Triangle?

What if, for the first time in 4.5 billion years, Earth was pulled out of its orbit, sending it on a collision course into the Sun? Earth's 65-day deadly fall brings massive hurricanes, sandstorms and a heat wave that kills every last person.

After tracking Hitler's attempts to return to power through wealthy supporters in Argentina and Brazil, Bob Baer and Dr. John Cencich hit the ground in South America to tackle their biggest lead yet.

After the fall of Rome, autonomous city states emerged and revitalised their cities with new and radical designs. Explore how a new Italy was built.

In 79 AD, the mighty volcano Vesuvius exploded in one of the most deadly eruptions of all time, burying the city of Pompeii and other Roman towns along the Bay of Naples beneath layers of ash and pumice.

US airline pilots are reporting near mid-air collisions with UFOs. Elizondo hears a never-before-told account from a major legacy airline pilot whose report of a glowing orange sphere while in the cockpit over Arizona is backed up by photo evidence.

Could aliens have told Joan of Arc how to beat the English army? And could a US serviceman have received a message when he touched a spaceship? Experts investigate.

Gold Hunters: Legend Of The Superstition...

Hunting for the Lost Dutchman is usually a one-man journey, but Wayne Tuttle is partnering with a team of experts to follow a newly-revealed clue that could finally solve the 500-year-old mystery of America's most famous buried treasure.

Tales of Bigfoot sightings are reported globally but the Alaskan version is the most extreme, standing over 14 feet tall. Is this massive, aggressive creature targeting people in the Alaska Triangle?

What if, for the first time in 4.5 billion years, Earth was pulled out of its orbit, sending it on a collision course into the Sun? Earth's 65-day deadly fall brings massive hurricanes, sandstorms and a heat wave that kills every last person.

After tracking Hitler's attempts to return to power through wealthy supporters in Argentina and Brazil, Bob Baer and Dr. John Cencich hit the ground in South America to tackle their biggest lead yet.

After the fall of Rome, autonomous city states emerged and revitalised their cities with new and radical designs. Explore how a new Italy was built.

In 79 AD, the mighty volcano Vesuvius exploded in one of the most deadly eruptions of all time, burying the city of Pompeii and other Roman towns along the Bay of Naples beneath layers of ash and pumice.

US airline pilots are reporting near mid-air collisions with UFOs. Elizondo hears a never-before-told account from a major legacy airline pilot whose report of a glowing orange sphere while in the cockpit over Arizona is backed up by photo evidence.

Could aliens have told Joan of Arc how to beat the English army? And could a US serviceman have received a message when he touched a spaceship? Experts investigate.

Gold Hunters: Legend Of The Superstition...

Hunting for the Lost Dutchman is usually a one-man journey, but Wayne Tuttle is partnering with a team of experts to follow a newly-revealed clue that could finally solve the 500-year-old mystery of America's most famous buried treasure.

Tales of Bigfoot sightings are reported globally but the Alaskan version is the most extreme, standing over 14 feet tall. Is this massive, aggressive creature targeting people in the Alaska Triangle?

What if, for the first time in 4.5 billion years, Earth was pulled out of its orbit, sending it on a collision course into the Sun? Earth's 65-day deadly fall brings massive hurricanes, sandstorms and a heat wave that kills every last person.

In less than 200 years, the Aztecs went from a tribe of nomads into the most powerful civilisation the New World had ever known. How did they achieve such greatness?

Host Josh Bernstein searches for the long-lost land of Ophir, home of King Solomon's vast treasures. But can he succeed where so many before him have failed?

Lue Elizondo previously identified five observable characteristics of UFOs, dubbed the 'five observables'. But there is a so-called sixth observable Elizondo began to investigate - an invisible threat these craft may pose.

During World War II, rumours spread that an aircraft had been built from extraterrestrial blueprints. Were aliens helping Hitler's quest for world domination?

Mother Nature attacks Gulf Coast residents with the worst hurricane in US history; a tornado rips through a hardware store, turning merchandise into lethal weapons; and in Haiti, a monstrous earthquake claims countless victims.

Unable to find a tunnel at the waterfall, the team is guided by an animal marker to a boulder carved in the shape of a turtle. Following the direction of the turtle head, the team discovers a Golden Lily symbol indicating a secret backdoor entrance.