BLAZE

Throughout the world, structures exist that would be almost impossible to duplicate today. How were ancient civilisations able to build them? And why.

Explore whether time travel has already occurred - deliberately or by accident - and meet the scientists who believe it is theoretically possible.

The Psychograph, the Blood Mask and the Cursed Chicken Pot: Investigate a machine which can supposedly read personalities, a mask painted with human blood and a cursed pot.

The team investigates videos indicating a strong UFO surveillance presence at weapons laboratories.

The bloodless murder of livestock has plagued farmlands worldwide for generations. Are extraterrestrial beings responsible.

Alien abductees undergo hypnotic experimentation to see if there is any truth in their stories.

In 1938, hundreds of mysterious stone disks were found in a cave in China. Are these proof of contact with an alien race.

At the port of Los Angeles, the Uzi and Shlomi are out to destroy the competition.

Manic Matt finds himself laughing hard when the others spend big money on what looks like junk. But will he wind up the butt of the joke.

Part 1: Rust Valley's competing shops get ready to face off at the annual Hit-to-Pass race. The cost of Avery's Deuce-and-a-Half music truck spirals out of control.

Part 2: As the auto shops of Rust Valley battle it out at the high-impact Hit to Pass drag race, an accusation of cheating causes chaos to erupt.

Henry Cole, Allen Millyard and Guy Willison try to find vintage finds to sell in Kempton.

Henry, Allen and Guy dig through Matt XX's cast-offs, finding a vintage Chopper and a 1950s motorised bicycle.

When a customer presents a signature worthy of presidential praise, can Corey strike a deal? Later, a magician has a car once owned by Siegfried and Roy.

Rick checks out a rare playing card featuring a legendary surfer, while Chum examines a 'Yellow Boy' carbine rifle.

Rick makes a surreally good deal for a painting supposedly created by Rene Magritte - will this be the biggest pay day in Pawn Stars history.

Desert Dan returns, T-Money marches to the beat of his own drum and Brandon and Lori battle for a bin in order to protect their territory.

Brandon and Lori look for a big win, the Alvarado brothers gamble and T-Money considers a fiery contraption.

Brandon and Lori go for the gold - but find something even better.

Sean enters one of the most unusual, big money auctions yet, Scott and Jesse go head to head, Brandon and Lori take a risk and Papa Bear goes all in.

A bidding war hands Ton and Allen a Winchester Model 1912 and a hunter's collection of big game, full-body taxidermy.

One of the US's oldest storage facilities throws up a heap of unusual items, including an 1800s whaling harpoon and a Betsy Ross American flag.

Allen and Ton score a World War II Stuart M3 tank barrel and heavy-duty tank treads. In the ultimate deli unit, they discover a gigantic meat slicer.

Allen and Ton uncover an 1886 rifle invented to kill buffalo. Then they head to the monster track to test 1950s electric slot cars.

The big money buyers find themselves out of their comfort zones in DeSoto. A new face from across the pond threatens to ruin Ricky and Bubba's day.

The bidders return to Dallas hoping to land a locker of a lifetime. Mary flouts the law in her eagerness to score a dream unit.

Auctions in Garland bring a day of dashed hopes and sweet profits. Plus, a new buyer begins to throw some of the bidders off their game.

The buyers head to Fort Worth, where a local auctioneer stirs up trouble when he joins as bidder.

As the connection between Nolan's Cross and The Knights Templar deepens, the team digs up treasure on Lot Five.

Travel to the most remote, uninhabitable parts of Earth to reveal great mysteries that have been frozen in time.

Hugh Dennis and a team of archaeologists are in Devizes, searching for a revolutionary 19th-century prison with a unique design.

Fish remains found near an angry Sumatran volcano could suggest a new human migration route and a collapsed kingdom in Turkey gets discovered.

Explore millennia of end-of-world theories, from Revelation and Nostradamus to a mysterious blue star. Could any of these apocalyptic visions come true.