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Shawn must fix his landlocked barge, but faulty controls threaten the Megadredge dream. And with limited dredging supplies, Emily gambles in the hope of a fast payoff.

The Gold Gypsies make a discovery that could finally catapult their season. Meanwhile, the Victoria Diggers hit red tape, pushing Neville to the edge.

Forrest returns to his childhood home in Zimbabwe searching for the extinct Cape lion after numerous sightings of a similar size lion with a black mane.

The crew of the Wizard face a life-or-death situation when a deckhand collapses. On the Seabrooke, Scott is determined to win the captain's wager - but at what cost.

In a rush to help their collapsed greenhorn, the Wizard crew calls in a Coast Guard helicopter, and the remaining fleet race to haul crab ahead of the hurricane.

John's plans are derailed when a tree crushes his shelter. Ben finds the best dig site he's ever seen and Boyce's only shot at gold leaves him with dire options.

In Siberia, Josh Gates investigates the strange and brutal cold case of the Dyatlov Pass Incident, where nine Soviet hikers died suspiciously in 1959.

Josh Gates faces harsh conditions whilst investigating the Dyatlov Pass Incident, where nine hikers died in unexplained circumstances.

In Hawaii, the Raneys rescue a young family with a crumbling cabin on a homestead infested by slugs carrying a brain-eating parasite.

Sweltering temperatures and a waterlogged mine threaten to unravel The Digi Diggers' season-long dream. The Cheals' starter motor fails on their wash plant.

The Bushmen put their lives on the line in the most dangerous mine they have ever worked. Plus, the Cheal's first dig of the season grinds to a halt.

When Sig rejects Jake's partnership offer, it sparks an intense feud between the pair. Plus, Josh Harris works hard to prove himself as captain of his father's boat.

The crew helps Jedi turn a pontoon boat into a 'cabinboat,' complete with a deck, bathroom and bedroom. This floating build is packed with surprises.

In West Virginia, the crew play a big part of a small town's post-flood revival as they build a log cabin and timber frame.

The Gold Timers negotiate a lucrative deal to sell their mining rights. Torrential summer storms in Victoria threaten to shut down the Poseidon Crew's operation.

A pair of complete strangers find themselves stranded in and quite literally exposed to one of the world's most extreme weather environments.

AK, a past survivalist, returns for her chance at redemption. Her partner Jason joins her in tackling the jungle of Guyana, but the two have different priorities.

The Salvage Dawg team travels to Free Will House in Huntington, West Virginia. They salvage a bathtub, sitz bath and kitchen cabinets.

Mike, Robert and the team travel to the Rural Retreat Historical Society. While Robert salvages a vault door, Mike sets up rigging from the rooftop.

Shawn tries to convince potential investors on his Megadredge vision. Kris frays Andy's nerves and Zeke releases a secret weapon, but faces a sudden challenge.

To fund the Megadredge, Shawn races to the Bluff with only a day left in the season. Kris hits the best gold of his life, but his shoddy gear lets him down.

The Poseidon Crew receive devastating news about their mining permits. The Dust Devils gamble big on a quartz reef. Shane and Russell strike gold.

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

A treacherous arctic hurricane decimates the crab grounds, forcing captains Elliot Neese and Scott Campbell Jr to face some of their toughest decisions yet.

Ben's season may be saved with a kill, but gold proves elusive. John finds a promising dig site but his stamina is fading. Boyce must move 500lbs of gear.

The Search For Florida's Lost Pirate. Josh heads to Florida chasing the long-lost treasure of pirate Jose Gaspar. He joins marine archaeologists and treasure hunters in the search.

After a potential new breakthrough, Josh returns to Guatemala, searching for a snake king tomb. Using new technology, he hopes to find the tomb's location.

The Raneys rescue a family descended from rock'n'roll royalty by reclaiming their homestead from the jungle on Kauai. But a dangerous flash flood causes issues.

Between A Rod And A Hard Place. A rookie miner gets trapped down a mine shaft. A dust storm forces the Blacklights to reluctantly return to the failed Land of Promise money pit.

After ratter thieves raid their mine, the Misfits, Angel and rookie miner, Cody, struggle to find an opal king stone to fulfil an order for a buyer.

Jake becomes suspicious of Captain Keith's true intentions when he offers to take him on as an apprentice. Plus, Sig plots his revenge against his newest rival, Jake.

Sean and Casey forge an alliance but when one strikes crab, will he betray it? Plus, will Wild Bill's risky new bait and fishing strategy pay off big.

Josh wants to investigate ghostly sightings and terrifying sounds coming from an abandoned canal along the Potomac. What will they uncover.

Josh concludes his investigation into the mysterious Maya city of El Mirador, including the possible burial of the Snake Kings.