Sparks fly between a veteran ALB lineman and a newcomer gunning to take control. City Electric's equipment is lost to an icy river, and EPC tests a new invention in Kodiak.

Experts question what the God Particle reveals about the origin of our world and whether clues to its significance could have been left by ancient aliens.

The Detroit family pawn shop opens its doors on dodgy sellers, angry dealers, staff rifts and everything from a gynaecologist's table to an elephant's skull.

In an attempt to get Seth out the office Les bets him that he can sell more items. If Seth loses, he will have to hire a secretary. If Les loses, he will do Seth's job for a week.

All three companies battle for a single job, but only one will win the bid. Meanwhile, a Kodiak bear stalks the EPC crew and one lineman has a terrible accident.

Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being.

Tempers flare as hordes of angry customers face hour-long lines, Les must work out whether a dealer's pushing stolen goods, and Seth and Ashley's feud erupts.

Seth takes a beating when a negotiation slips into a kung-fu showcase, and Ashley must scramble to find an angry customer's missing guitar.

A devastating injury stuns the City Electric crew. Meanwhile, ALB navigates an intricate web of live wires to push their job to completion.

Ancient alien theorists delve into the incredible stories of people who claim they mingled with celestial beings while they were on the brink of death.

The Golds' good reputation is at stake, when a customer claims he was sold a fake watch, and Ashley offers a customer way over the odds for some gemstones.

Les is forced to call security when a row over a missing item turns violent, a gambler drops in for funds and a customer tries to shift a gynaecologist's table.

With Bam Bam in the hospital, the City Electric team struggles to move on. Ben and Kenny from EPC race snow machines into the night for an emergency job.

Could Earth's deepest caves hide secret conduits to other worlds? Or harbour evidence that aliens once visited our planet? Experts investigate.

Les causes drama when he tells a woman her gold bracelet is fake. Later, it's Seth's turn to suss whether a gold watch is priceless or worthless.

An out-of-character Les makes an impulse decision that threatens to backfire, and later gives a big loan to a customer with a dubious sob story. Has he been fleeced?

Follow two teams of professional deck builders as they face off against one another to design and build the ultimate garden decking.

Commercial airline pilots and flight crew spend more time in the sky than anyone. It's no surprise, then, that many UFO sighting reports have been generated by pilots and airline personnel.

An orchestrated comeback launches Donald Trump's rise as TV celebrity, international brander and political firebrand.

Rick gets the chance to purchase a page from the Gutenberg Bible. Known as the first printed book, will the single page break Rick's bank or leave him wanting more? Corey checks out a rare six-sheet movie poster that's so big it doesn't even fit on the counter.

It's 'Bring Your Brother to Work Day'. Justin sinks his money into a unit with an interesting pair. Dave pushes Mary to breaking point.

Darrell's insider information amplifies his investment considerably. Mary's find cooks up some oversized accoutrements.

Darrell risks losing the title of The King of Montebello. Casey bails herself out despite being confined with an infectious German.

Ivy goes on the prowl for a bike, Dave scores a therapeutic locker, and Justin tries to show the rest of the buyers how to make the most out of a unit.

Explore how the biggest vehicles on earth - planes, trains and ships - are repaired and transformed within incredibly short timeframes.

Brandi and Jarrod uncover an Illuminati-ng stash, and Dave does what he does best while Mary finally gets the help she needs.

Mary tries to impress a client, Rene finds protection from predators and Ivy heads to the barbershop.

Rene laughs all the way to the bank, while Darrell reels in a hoard of goodies.