A brand-new team brings cutting edge technology to the opal fields.

The Cheals take on their most dangerous dig ever.

The Mooka Boys are forced to work Leif's late father's abandoned mine.

The Bushmen discover their new claim has been dug out by opal thieves.

The Cheals are cut off from their mine by crippling floods.

The Mooka Boys may lose a potential investor due to their little mining progress. Disaster strikes for the Opal Whisperers when Sofia's hoist fails.

The Mooka Boys attempt to reach a new mine on a treacherous opal field. Plus, the Blacklighters are almost buried alive mining opal in unstable tunnels.

The Opal Whisperers partnership with veteran miner Uwe ends abruptly.

The Digi Diggers get lost exploring a terrifying abandoned mine.

Rod goes toe to toe with ratters who stole opal from their mine.

A vicious storm threatens to end the Misfits season early.

The Misfits attempt a dangerous night dig.

Sofia and Isaac get trapped at the bottom of their open cut mine.

Gross incompetence lands The Blacklighters in hot water with Mark's wife.

The Bushmen are blindsided by a catastrophic digger failure.

The Misfits struggle to find an opal king stone for an interstate buyer.

Slim Pickings' efforts to recycle precious dam water are derailed. The Blacklighters scrounge for any last opal in their Land of Promise Claim.

Sam smashes valuable opal with a jackhammer in the Bushmen's mine.

The Cheals' dreams of expanding their Opal Empire are crushed.

When Chris suffers a spider bite, Oscar and Luca take up the mining mantle.

The Blacklighters are hit with a double dose of disaster.

The Bushmen are forced back into their deadly mine.

Blacklighters Mark I'Anson and Paul Coon get boxed-in during their mission.

The Misfits are forced to use untested contraptions to find rainbow matrix.

Mark's inexperience with the dozer proves too much for Paul.

With the Lightning Ridge Opal Festival a day away, Cody cooks up a miracle.

The Cheals must unearth a rare green-orange gemstone for a potential buyer.

The Mooka Boys crane a vital DIY shelter across the Lunatic Opal Field.

Dan Measey takes a gamble on new but unproven opal-detecting AI technology.

The Mooka Boys' last working machine suffers a catastrophic breakdown.

The Blacklighters' leader Mark is severely injured in a mining accident.

Brutal Outback temperatures cripple Cozza with severe heat stroke.

A miscalculation costs The Blacklighters thousands of dollars.

The Young Guns face an uncertain future when James gets injured. The Bushmen find opal on the boundary of their mine, and rain slows down the Cheals.

The Blacklighters spot one of the deadliest snakes in the world. The Young Guns take on a dangerous new mine, and the Opal Whisperers hunt for cathedral pattern opal.

Rory and Oscar are forced to operate their dad's drill rig for the first time. The Tarantos are struck down by sickness, and the Bushmen build a dangerous mine roof.

The Tunnel Rats risk their lives to get a massive digger under the ground. Meanwhile, the Blacklighters are amazed to unearth their largest piece of opal.

The Bushmen's new worker faces a dangerous first day on the job. The Tarantos' overworked excavator grinds to a halt, and the Cheals are hit with more breakdowns.

The Bishop invests in a massive new claim, but he has no money left over for equipment. Meanwhile, the Tunnel Rats risk electrocution as they hunt for crystal opal.

The Misfits search for a new claim in Andamooka's dangerous opal fields. With no working machinery, the Opal Whisperers put their hopes into a bucket of Yowah Nuts.

The Blacklighters are forced to move their 10-ton processing plant to a new claim. Plus, the Cheals try to use abandoned truck parts to fix their agitator machine.

As the Bushmen search for a partner, their new rookie ignores safety protocols and rushes into a deadly no-go zone. Plus, the Cheals attempt to revive their season.

The Bishop hires a bomb expert to blast the impenetrable rock that's blocking access to a rich opal seam. Meanwhile, the Misfits face avalanches and dust storms.

The Mooka Boys risk being buried alive as they hunt for a legendary mine shaft. The Blacklighters are overwhelmed by choking dust on their bone-dry claim.

Scotty gets lost while exploring hidden tunnels on the Bishop's massive claim. Jack and Mickey are nearly crushed as the Tarantos try to move their machinery.

The Bushmen attempt drilling for the first time with a 50-year-old exploration rig. Plus, the Mooka Boys go on a treasure hunt in a scorpion-riddled mine.

The Young Guns rethink their black opal hunt when they face impenetrable mine walls. The Blacklighters' ambitious plan is threatened as their generator dies.

The Bushmen discover a hidden shaft by falling straight down into it. The Young Guns are forced to undertake emergency repairs halfway down a mine shaft.

The Bushmen take over their new recruit's mine, but the new claim proves equally treacherous with little sign of opal. Bishop resorts to explosives to move a wall.

The Bishop and Scotty struggle to make safe a wall and end up causing an avalanche. Meanwhile, the Mooka Boys' bobcat is hit with critical failure.

The Bishop loses his partner Scotty deep underground. The Tarantos' hopes of exposing a rare pocket of opal are in jeopardy and Young Guns make a big mistake.

The Misfits put their faith in an ancient bulldozer for the season's last dig. Meanwhile, infighting stalls efforts to unearth the Opal Whisperers' haul.

The Bushmen risk their lives digging where opal thieves removed the ceiling supports. Meanwhile, the Blacklighters switch to dangerous night mining.

Gale force winds threaten the Digi Diggers' dreams of an eco-mine. The Bushmen discover dangerous old workings while clearing out their new mine.

The Blacklighters discover opalised sea creatures in an ancient seabed. The Cheals close in on their biggest opal haul ever, but all is not as it seems.

The Bushmen make a last-ditch attempt to find some opal before the mine collapses. Mark gets back on the heavy machinery that nearly killed him.

The Mooka Boys face the new season without chief mechanic Leif Tanzer. Plus, Opal thieves have ransacked The Bushmen’s claim.

When the excavator breaks down, Mark comes up with a solution that ends up costing a small fortune. Lee and Roger's old dry rumbler refuses to start.

A road trip to Diggers Gully pays off for the Opal Lovers. Taking a gamble on their Turners Rush claim doesn’t seem to be paying off for the Cheals.

Slim Pickings are suddenly a man down when Lee shocks Roger with an unexpected injury. The Misfits divide and conquer at their Lunatic Claim.

It's a race against time for Slim Pickings when waste dirt creates a huge dust storm. Rod and Les near-destroy Sam's hoist while setting up her claim.

The Misfits receive a tongue-lashing from 'Opal' Joe Kalmar for not producing enough opal. The Cheals' giant prospecting drill is crippled by mud.

The Bushmen are greeted by a fierce creature in their underground mine. The Opal Lovers enlist the help of some friendly backpackers.