Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code.

Over three seasons, 26 bladesmiths have been crowned Forged in Fire champion. Tonight, prior winners return to prove who among them is the best of the best. With $10,000 and their reputations at stake, two remaining smiths must create the deadly Pata.

Dave surprises his rivals by showing his lighter side at auctions in Fontana. After scoring here in the past, Jarrod and Brandi arrive with high hopes.

The buyers return to Montebello, where Darrell has had some of his biggest scores. Will he repeat or crash and burn? Meanwhile, Brandi learns that Jarrod is facing a problem that affects more than just their business.

Known by researchers as the 'greys', beings with big heads and giant eyes have been depicted in rock-art and carved stone figures throughout the ages and all over the world. Who are they and what do they want?

There are numerous accounts of ancient civilisations being wiped out by volcanoes, earthquakes, floods and meteors. Is it possible that celestial beings had a hand in the ancient world's catastrophic disasters?

It's all hands on deck when a British Navy gunpowder bucket blasts into the shop. Will Rick scoop it up, or send it overboard?

Chumlee sells one of Rick's prized Japanese katanas to UFC president Dana White.

The swordsmiths compete for a chance to craft a sacrificial sword from history which could reportedly cut a sheep in half with one swing.

Four new bladesmiths compete for a chance to forge a Hunga Munga - a four-edged behemoth of a weapon.

All aboard with the Pawn Stars when Rick checks out a Gilded Age train. Will he be able to hook up a buyer for this thing, or is Rick holding a one-way ticket to No Sale?

It's up, up and away with the Pawn Stars when Rick and Corey check out an original Superman costume. Can Rick's super strength lift what the seller is asking or will arch enemy 'No Deal' rule the day?

Researchers claim there are hidden messages that can be found within the works of Leonardo da Vinci - and other art throughout history - that may reveal an extraterrestrial influence.

Four eliminated bladesmiths return to the forge for a shot at redemption, but they face a difficult challenge. After two rounds of competition, two remaining smiths face off to recreate a weapon known for its devastating strength – the Viking sword.

It's the battle of the couples as Rene and Casey attempt to shut out Jarrod and Brandi. Darrell dodges a bullet to score an interesting locker, and Ivy meets a furry friend.

Ivy attempts to keep his winning streak alive while Darrell and Rene play mind games with each other. After one ends up at a crime scene and the other takes a trip back in time, things get a little foggy for Jarrod and Brandi.

The invasion of Nassau goes seriously awry. Teach and Rackham seek revenge for Vane's death, and Eleanor tries to come to terms with her new role.

In 2017, a strange, cigar-shaped object entered our solar system from another star system travelling in such an unusual trajectory it caused some astronomers to suggest that it could be an extraterrestrial craft.

It's judge against judge when all four judges pick a past bladesmith to represent them in the ultimate battle for supremacy. The two final competitors must forge a sword that originated from the most skilled blacksmiths in West Africa, the Ida.

Jarrod and Brandi split up for auctions in Montebello. Ivy hires someone to run his shop. Will his new employee be a help or a hindrance?

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena.

Four bladesmiths tee up for a previously unseen challenge when they must harvest the steel from a vintage golf club to forge a blade. In the final round, the remaining smiths must forge a pair of iconic double-bladed weapons.

Jarrod and Brandi are under pressure and fear that if they don't score a major profit, their new Long Beach store may have to close.

Rene looks to use money to outmuscle his rival bidders, while Brandi and Jarrod deliver bad news to the staff of one of their stores.

Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code.

For the first time ever, the competitors are challenged with creating not one, but two blades in the first round. The two remaining smiths have to create an iconic 15th century combat sword – the Katzbalger.

Darrell and Brandon are thrilled to return to their lucky town of West Covina. However, it's Dave who makes a first-class find.

A surprise visitor from Texas shows up in time for a series of heated auctions in Upland, where a bad day for Ivy ends with a big bang.