Marcus hits his biggest gold of the season, the Dust Devils battle machine breakdowns and impure gold, and the Gold Timers' luck is finally on the up.

Jacqui and Andrew finally strike gold, the Poseidon Crew break ground on their colossal new lease, and Shane and Russell risk coming face to face with wild dogs that hunt the outback.

Shelley must pass her MC licence to complete two back-to-back jobs, Chevy battles a punishing 2,500-kilometre oversized haul, and Roy puts an electric truck to the test on a mountain range.

Permit delays devastate the Poseidon Crew's hope of a massive payday, a torrential downpour forces Shane and Russell to evacuate their dig site, and the Ferals finally uncover a rich patch of gold.

The team update a 1977 Daimler Sovereign Coupe. They give it a modern makeover with upgrades to the suspension, ride-height, and colour. But a disaster in the paint booth puts the project in peril.

Irv finds the holy grail of VW: the Beetle. It's just miles from his garage, so he makes it his mission to breathe new life into this 75-year-old cable-break classic.

Irv restores a golden supercar, a 1970s Lamborghini Espada, for a client in the Middle East. Hidden structural damage and spiralling engine issues threaten the entire project.

Irv takes on the restoration of an Escort RS1600i from an owner who had to give it up due to ill health. It turns out to be a much bigger job than he imagines.

Irv imports an original-run short wheelbase Porsche 911 from the East coast of America. He needs to make it roadworthy while keeping its incredible sun-faded patina.

The Gold Devils race against the elements, Jacqui and Andrew push to new extremes, and mechanical issues leave the Ferals divided.

Alan and Salty hit a dead end in the remote Kimberley region, Vince, Bibi and Murray are forced to break new ground in Victoria, and the Gold Retrievers struggle with their misfiring wet plant.

The Gold Devils battle on after losing a team member, the Ferals' nugget trail goes cold, and Jacqui and Andrew face a night-time detecting mission for lost gold.

The Gold Devils gamble on a potential motherlode, Alan and Salty go offroad in the extreme wilderness of the Kimberley, and Shane and Kate try to get two wet plants going but run out of water.

The Poseidon Crew are forced back onto an old lease in flooded Victoria, Shane and Kate call in help in Western Australia, and Jacqui and Andrew get separated at night in far north Queensland.

Mining season has just begun as newcomer Big Al gets off to a great start, Bernie struggles with an inexperienced crew, and best friends Ken and Guillaume can't find any gold at all.

Ken and Guillaume fight a flooding creek, Karl is still waiting to get his sluice set up, and Big Al goes after the 'smart' gold.

Ken and Guillaume's equipment problems mean they are only sluicing half of what they should be, Karl must deal with machine design flaw, and Bernie moves his operation hoping his luck will change.

Ken and Guillaume face breakdowns as a crew member goes AWOL, Bernie's move to Snow Creek seems to be paying off - if he can get his sons to step up - and Al's streak is threatened.

Guillaume tries to move the Beast, Ken contends with a bigger challenge - a visit from his wife - Karl is set back by one issue after another, and Al works around the clock to fix faulty machinery.

To prepare for winter in the Arctic, the Alaskans must overcome challenges as they travel through unfamiliar territories. They must take advantage of the fall season by stockpiling resources.

To ensure their survival for the upcoming winter, Alaskans must head out into the fray. From scouting for resources in sub-zero temperatures to hiking the countryside in search of food.

Inside Butler County Jail, the sheriff leads a fight against an opioid crisis. Investigators work to dismantle trafficking rings, while a rookie officer confronts the harsh cycle of repeat offenders.

The Dust Devils pour $40,000 into a new Heap Leach plant, 50°C heat threatens to shut the Ferals down, and an angry confrontation could see Marcus, Linden and Dale thrown off of a lease.

Jacqui and Andrew unearth the biggest nugget of their careers, the Ferals invest in a mobile sluice that could save their season, and the Poseidon Crew struggle with a waterlogged lease.

The Poseidon Crew clash over a risky return to the Slip Up lease, Shane and Russell suffer another mechanical breakdown, and heat and exhaustion puts the Ferals' hopes of reaching target in jeopardy.