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John risks capsizing with a slack tank. Jake hauls in the highest seas of his career and Sig rushes to get Clark home as mechanical problems mount.

Sig suffers a major systems failure while Jake uses his only gear to back out of trouble. Plus, John bets the farm on sea mammals.

It's a bad start to the crab season as skippers Keith and Phil await medical test results, while repairs to the rest of the boats mean they're all in debt.

In the race to meet a rainbow matrix order ahead of the Lightning Ridge Opal Festival, The Misfits bet everything on untested DIY contraptions.

Drowning in a sea of overburden, The Blacklighters face off against each other as Mark's inexperience with the dozer proves too much for Paul.

On the eve of the famous Lightning Ridge Opal Festival, The Misfits battle to treat 150kg of matrix opal, forcing Cody to cook up a miracle.

.. Ray takes on the job of bashing and sawing through his biggest rough stones. The Bushies reckon they've finally hit payday. But is it wishful thinking.

Anthony goes back to school, learning to cut gems, while Jodie enjoys the peace as she digs alone. The Richardsons dig deep at the old Rabbi Claim.

Old Timers Ray and Paul return to where they removed a huge boulder to see if it's hiding gems. Gemfield newcomers Matt and Amber hunt down sapphires.

The Dirt Dogs are determined to get the gold-tally up after last year's devastating season. Meanwhile, the Scrappers are stuck building their machine leaving them behind schedule.

The Dirt Dogs are under more pressure when their plant doesn't deliver the gold they're expecting. Meanwhile, the Scrappers are in trouble before they've even started mining.

Rick's start to the season only gets worse when he finds his truck's been ransacked. Plus, the Dirt Dogs ambush a gold thief and their chances of a profit takes a hit.

Beverly's clutter has filled every inch of her home, and her dogs have made part of the house unlivable. She must clear it, or risk losing everything.

Michelle lives in a house with a rat infestation so bad that it has compromised the building's foundations. Can she be helped before it's too late.

Forrest scours lakes and rivers of both metropolitan and rural Vietnam in search of one of the last living specimens of the giant softshell turtle.

Heather and Phil track down a legendary and potentially supernatural creature that has terrorised French locals for centuries.

Mireya and Biko must navigate rapids to track a possible hunting party in WA. Bryce discovers fresh prints, and Russell creates a trap for Bigfoot.

The Teen Who Wants A Voice. Rebecca vomits up to 12 times an hour and is often hospitalised. Jacque has a lymphatic malformation in her face that means she has never talked.

Darina was born with a genetic disorder that's left her with a deformed mouth and jaw. Isaiah was born with his organs back to front and no jaw at all.

A lost property auction in reveals an old-school boom box from the 1980s, while a buyer is over the rainbow about a rare 'Wizard of Oz' piece in a sealed trunk.

The buyers visit South Africa for a once-in-a-lifetime auction, and Billy appraises a ceremonial mask. Will profit still be made outside the specialist's comfort zone.

Wayne's all-original 1954 Studebaker Commander Starliner Coupe is invited to compete in a prestigious car show. And, he gambles on a 1938 Lincoln Model K Coupe.

Wayne transforms a 1931 Packard 840 Roadster Packard and meets an unexpected buyer. Plus, he loans 'Wheeler Dealers' star Mike Brewer a '57 Ferrari Testa Rossa.

Wayne resurrects a 1962 Jaguar XKE SI 3.8 Flat Floor Roadster that had been hidden for decades. And, he and the crew spruce up an OSCA for an exclusive car show.

It's Alive!! All the Concept Corvette's elements are built and assembled, but Dave needs to find a buyer. Plus, a rock 'n' roll icon brings his '34 Ford coupe to the shop.

Just A Couple Heres And Theres. A 1964 Corvette arrives at the shop for a simple repaint. But the job quickly turns into much more with new wheels and a whole new interior.

An abandoned '67 C10 that has been sitting for years has been sold to a client. He wants a few new touches, but closer inspection reveals more work is needed.

Dave convinces the client to make the '67 C10 truck into a convertible. Plus, Kevin takes on a new personal project with a Cadillac Escalade.

Andy built an empire out of a junkyard, but when business booms he risks losing his grip. Plus, problems with his race-car threaten to turn into a headache.

Damascus Motors is risking its reputation on ambitious projects and the slightest mistake could be the difference between success and failure.

Richard's team work overtime to complete their first big restoration - a 1950s Alvis. Plus, they are under pressure to get their racing MGB fit for competition.

Where's All The Money? Richard must come up with a plan to raise emergency funds. And, the team enter their first race at Donnington Park, but engine problems threaten to derail the project.

The shop hits the road with their freshest builds to check out the competition. Will and Dave's cousin Brad give their views on the cars they come across.

There's A Bolt In My Motor. What starts out as a simple engine repair on a 1935 Roadster V8 turns into a full rebuild. The shop gets pushed to the limit on this car.

Forrest travels to rural Columbia trekking into the lawless bush in search of a unique crocodilian species, the Rio Apaporis caiman.

On one of his most audacious and exciting expeditions to date, Forrest travels to the remote Galapagos Islands in search of the fabled Fernandina tortoise.

Four decades after the abduction of Travis Walton became a media sensation, shocking new evidence reveals the true story behind Fire in the Sky.