The Goldtimers catch a gold thief, Levi and Bridget make a rookie mistake that could end in disaster, and the Poseidon Crew take a desperate gamble on gold ground they've already detected.

The Ferals confront a gold thief, Jacqui and Andrew get their big break as professional lease explorers, and the Gold Retrievers head offroad to explore a promising new lease.

Wagga Truck Towing execute a difficult crane salvage in the Turros river, Clayton's Towing salvage an excavator, and Truckworks fight a battle against eight massive mining trucks.

The Gold Devils move their multi-million-dollar operation in search of big gold, and the new team of Vince, Bibi and Murray break ground on their dream lease.

The Cooks' latest purchase - a brand-new helicopter - can't seem to get off the ground, and Kurt Hammar's youngest son Kodi has dropped out of school to become a bull catcher.

While some wrap the season with big wins, Adam is still reeling from crab losses and makes a last-ditch gamble on tuna to break even.

Dale's business is growing, but so are the risks. A cliffside wreck recovery forces him to face fears and prove he's up to the challenge.

Donnie finds out that his old business partner is using his trademarked mining logo for his new tourism venture; at the 1870 mine site, Richie is worried that mining manager Dan has lost his mojo.

The Dust Devils are poised to smash the biggest season tally in 'Aussie Gold Hunters' history, the Goldtimers finally hit paydirt, and the Gold Gypsies' gold dream could finally be over.

The final week of the season sees the Gold Gypsies plagued by more bad luck and the Victoria Diggers face a death in the family - can the Poseidon Crew's optimism help them reach their targets?

Mike gambles on restoring his first car - a 1961 Sunbeam - as Avery indulges in his own rust addiction, but their friendship is put to the test when he proposes an auction to save Mike from himself.

Winter threatens to shut down mining early, Guillaume considers retiring the frozen Bad Attitude for good, Karl's sluice box ices over and traps his gold, and Big Al and Hiro battle beavers.

The Poseidon Crew dig for gold in century-old mine shafts, the Gold Gypsies struggle with an excavator breakdown, and the Goldtimers take a gamble on a new lease.

The Victoria Diggers struggle to hit targets, Shane and Russell's operation suffers storm damage, and the Dust Devils' operation grinds to a halt when their loader suffers hydraulic trouble.

As the historic 150th Magdalen Islands lobster season begins, Steven and a handful of other captains break the unwritten rules of the islands by border-hopping to northern waters.

A new member joins the expedition as wild weather strikes and risks the team getting stuck for weeks.

Winter threatens to shut down mining early, Guillaume considers retiring the frozen Bad Attitude for good, Karl's sluice box ices over and traps his gold, and Big Al and Hiro battle beavers.

Justin and Chloe fly choppers to detect gold in the outback in Western Australia, and new team The Brumbies forms when Kat loses her office job and joins her prospecting partner Brett.

The Poseidon Crew are plagued with accidents and their aftermath in Victoria, and new team the Heli Hunters come face-to-face with the dangers of flying choppers.

A simple scrapyard trip becomes a winter nightmare as Dale and Gripp battle snow, ruts, and wrecked gear on a remote mountain road.

The dry season continues to offer ideal conditions for gold hunting. Gordon takes rookie Sebastian to a spot where he was successful before. Gordon finds the first nugget of the season.

Nick Benzschawel goes on a mission to Panama to depose dictator Noriega; Nick and his fellow Rangers parachute onto military airfields, but some are shot out of the sky while the rest engage in battle.

The 'Horse Soldiers', led by Captain Nutsch and Pennington, used horseback riding to navigate Afghan terrain after 9/11. They conducted high-risk operations, delivering major blows to the Taliban.

Donnie hosts a live online auction to sell off the gold he's found at Swiss Diggings. He'll use the money to part-fund the land deal he's been offered. T. Richie may need surgery for his broken hand.

Weather dominates the landscape for the gem hunters, and two years of drought are punishing the district. Every miner needs water to process the dirt they dig - no water, no gems.