Chris Kristjanson relies on his dad Robert as his crew goes on the hunt looking for where the fish have moved. It's a big gamble; can he find a way to haul in a big catch and keep his buyers happy?

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.

Clayton's towing is under pressure to salvage a washed-up yacht, GRS Towing head to the snowy mountains for a 48-hour job marathon, and Wagga Truck Towing are on a time-critical mission.

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.

As the Wildcard crew prepare for their first unload of the season, Prue and three-year-old daughter Ellica find themselves out at sea and face to face with a hungry shark.

In Germany, engineers battle groundwater, tight space and complex logistics to build Frankfurt Airport's Terminal 3 - a vast new mega hub designed to handle 19 million passengers a year.

The gold rush season in the outback is in full swing. Gordon is unable to work after a dangerous tick bite on his head. Sebastian has to master complex tasks independently for the first time.

The Poseidon Crew are poised to secure ground that could hold multi-million-dollar nuggets, Jacqui and Andrew venture into north Queensland, and the Ferals take a gamble on a remote island expedition.

Brent Shannon's gold dream lives or dies at a weigh-in, Shane and Russell venture out on a gruelling 3000km expedition, and new team the Gold Retrievers unearth a bumper payday.

Irv is a world-renowned expert in VW Sambas, so when an American collector turns to him with a bunch of rusted panels, and the dream of a showroom quality vehicle, there's only one man for the job.

Ken is forced to call in reinforcements when winter hits Moose Creek hard, Cam mines a treacherous ancient waterfall that could ruin his equipment, and Karl's mechanical skills are put to the test.

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.

While Dale struggles to run the family farm and his business, Gripp gets a call from his sister after a terrifying crash and races to help.

Kimberly and Tiffany get a rare chance to contact loved ones back home, Christian and Elley follow a hunch, and Ray and Erik embark on an adventure of a lifetime to a reindeer station.

Ken and Guillaume move to higher ground. Karl finally hits a paystreak. Cam tries to finish his season on a positive note.

Paul Mackie hires a massive bulldozer to uncover a gold deposit, breakdowns force Sheryl Munro to run a dry blower on her own, and the Poseidon Crew scale up their search for fine gold.

The Desert Diggers battle to get their dry blower running, Shane and Rusty hunt for big nuggets at Fantasy Gully, and Jacqui and Andy's push to reach gold lands them in a life-or-death situation.

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.

The gold rush season in the outback is in full swing. Gordon is unable to work after a dangerous tick bite on his head. Sebastian has to master complex tasks independently for the first time.

From a groundbreaking capture of a narco-submarine loaded with cocaine in 2019 to the largest car theft bust in Canadian history, this episode reveals how criminals innovate to stay ahead of the law.

In Poland, engineers battle unstable mountains, methane gas and treacherous terrain to build a new high-speed railway through the Carpathian foothills.

Anthony learns to cut gems while Jodie goes underground to mine alone, the Richardsons dig deep at the old Rabbi Claim, and the Old Timers attempt to move a 500kg billie boulder out of a shaft wall.