The Digi Diggers need to explore new ground after mining opal too brittle to sell. The Bushmen find their new claim has been dug out by opal thieves. S6/Ep4
The Opal Whispers are forced to leave behind a rich opal seam in a mine on the verge of collapse. The Cheals are cut off from their mine by crippling floods. S6/Ep5
Gale force winds threaten the Digi Diggers' dreams of an eco-mine. The Bushmen discover dangerous old workings while clearing out their new mine. S6/Ep6
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. S6/Ep7
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. S6/Ep8
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. S6/Ep9
The Opal Whisperers' partnership with veteran miner Uwe ends abruptly. The Misfits finally hit old timers' workings at the bottom of their open cut mine. S6/Ep10
The broke Bushmen are forced to trade opal to get a shaft drilled on a new claim. The Digi Diggers get lost exploring a terrifying abandoned mine. S6/Ep11
The Bushmen's home-made hoist and bucket fails. The Opal Whisperers, Sofia and Isaac, get trapped at the bottom of their open cut mine in sweltering temperatures. S6/Ep15
Desperate to move more rock, the rookies get a lesson in the dangerous art of bomb-making. Plus, Kelly is forced to sell her precious reserve of stones. S1/Ep6
Opal fever has struck! In South Australia, rookie miners Daniel Becker and Justin Lang leave their lives behind, risking all to chase an opal fortune. S1/Ep1
Sweltering temperatures and a waterlogged mine threaten to unravel The Digi Diggers' season-long dream. The Cheals' starter motor fails on their wash plant. S6/Ep20
The Bushmen bring in a master opal cutter, hoping to transform rough stones into a $100,000 haul. Sofia and Isaac are threatened by a mine roof collapse. S6/Ep19
The Bushmen struggle to locate the source of water flooding their mine. The Misfits are forced to work Issy's mine Honey Hole as they wait for bulldozer repairs. S6/Ep18
The Bushmen's drill rig loses a vital pin, forcing 74-year-old Les to undertake repairs four meters in the air. The Digi Diggers flooded mine wall collapses. S6/Ep17
Isaac from the Opal Whisperers works an abandoned, dangerous mine. The Mooka Boys are confronted by an irate miner as they peg a claim too close to his mine. S6/Ep16
The Bushmen's home-made hoist and bucket fails. The Opal Whisperers, Sofia and Isaac, get trapped at the bottom of their open cut mine in sweltering temperatures. S6/Ep15
The Tunnel Rats are under extra pressure as rival miners close in on their claim. And, the Bushmen must brave an abandoned mine to remove a dead animal. S3/Ep9
The Bushmen are desperate for a breakthrough after a run of bad luck. And the Young Guns are under financial strain and fall out over their new mine. S3/Ep8
The Bushmen dodge rockfalls in a potentially deadly new mine. The Fire Crew close in on a new deposit of black opal and the Boulder Boys struggle to drain their pit. S3/Ep7
The Bushmen risk their lives in the fight to get their one-tonne digger down a 20-metre deep mine shaft. Plus, new alliances are forged as the Boulder Boys hit pay dirt. S3/Ep6
The broke Bushmen are forced to trade opal to get a shaft drilled on a new claim. The Digi Diggers get lost exploring a terrifying abandoned mine. S6/Ep11
The Opal Whisperers' partnership with veteran miner Uwe ends abruptly. The Misfits finally hit old timers' workings at the bottom of their open cut mine. S6/Ep10
Old partners Aaron Grotjahn and Col Duff reunite on a prospecting mission. Meanwhile, the Tunnel Rats race to protect their claim as rival miners close in. S3/Ep5
The Tunnel Rats blast their way to a fortune and solo prospector Col Duff is stranded deep in the Queensland outback. Rookie Sam runs out of air underground. S3/Ep4
Rookie team the Young Guns have a life-threatening moment hunting legendary pineapple opal. The Cooke Bros scramble to hunt on another miner's claim for a share of the find. S3/Ep3
Bushmen Rod and Les risk their lives reopening a long-abandoned mine. New team the Young Guns go deep underground for the first time, hunting pineapple opal. S3/Ep2
The Bushmen clash with opal thieves raiding one of their mines. The Cookes hack an old digging machine, while the Fire Crew hunt for a deposit of rare black opal. S3/Ep1
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. S6/Ep9
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. S6/Ep8
The Bushmen stay up late to drive out poachers from their mine. Plus, Col Duff reunites with Greg in one last push to find opal before the summer heat gets too much. S3/Ep19
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. S5/Ep8
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. S5/Ep7
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. S5/Ep6
Justin's excavator has an expensive oil leak. Plus, Col's crew are a man down and the Fire Crew are on a wild goose chase hunting a bounty of fabled fire opal. S2/Ep2
The Young Guns battle to open up a crucial ventilation shaft. The Opal Whisperers gamble on a new claim, and the Boulder Boys are slowed down by ageing machinery. S4/Ep13
With Dan stuck at home, Justin starts the new mining season alone. He is dealt a huge blow when their rich underground mine has been pegged by another miner. S2/Ep1
The mining season is almost over and Col's crew take one last gamble. The Cooke brothers strive to save their mega opal machine and disastrous season. S1/Ep8
The Bushmen feel the aftershock of severe flooding as mine shafts start collapsing. A hazardous buildup of dirt forces the Tunnel Rats to create a makeshift dump truck. S4/Ep12
With the end of the season approaching, the rookies risk cave-ins at their abandoned mine claim. Deep underground, George is trapped in the blast zone. S1/Ep7
Desperate to move more rock, the rookies get a lesson in the dangerous art of bomb-making. Plus, Kelly is forced to sell her precious reserve of stones. S1/Ep6
Desperate to add value to their opal, the Tunnel Rats take a crash course from the Opal Queen. And, the Young Guns finally get their machinery up and running. S4/Ep11
After the birth of Daniel's child, the Rookies return to Coober Pedy. Kelly and Al battle a deadly cactus in their hunt for the most valuable opal. S1/Ep4
The Blacklighters run into devastating mechanical problems. And, the Opal Whisperers show there's big money to be made hunting a rare form of opal. S4/Ep10
The Bushmen struggle to locate the source of water flooding their mine. The Misfits are forced to work Issy's mine Honey Hole as they wait for bulldozer repairs. S6/Ep18
The Bushmen's drill rig loses a vital pin, forcing 74-year-old Les to undertake repairs four meters in the air. The Digi Diggers flooded mine wall collapses. S6/Ep17
Isaac from the Opal Whisperers works an abandoned, dangerous mine. The Mooka Boys are confronted by an irate miner as they peg a claim too close to his mine. S6/Ep16
The Bushmen's home-made hoist and bucket fails. The Opal Whisperers, Sofia and Isaac, get trapped at the bottom of their open cut mine in sweltering temperatures. S6/Ep15
Mick's mining operation grinds to a halt when the conveyor belt rips on a piece of machinery. In need of cash, he heads out of town on another job. S1/Ep3
Justin and Daniel tread a dangerous path deep underground in an abandoned mine. Meanwhile, Kelly and Al search for the rare, valuable black opal. S1/Ep2
The Tunnel Rats struggle working on unfamiliar ground. The Boulder Boys try to keep their jobs with a last-ditch hunt to satisfy their mining partners. S4/Ep9
Opal fever has struck! In South Australia, rookie miners Daniel Becker and Justin Lang leave their lives behind, risking all to chase an opal fortune. S1/Ep1
Sweltering temperatures and a waterlogged mine threaten to unravel The Digi Diggers' season-long dream. The Cheals' starter motor fails on their wash plant. S6/Ep20
Hard ground at the Bushmen's claim causes damage to their digger. Pete and Sam hunt for better opal dirt as their "mega wash-plant" shows promise. S4/Ep8