The Tunnel Rats face an unexploded bomb and deadly gasses.
New team The Bushmen clash with opal thieves raiding one of their mines.
Bushmen Rod and Les risk their lives reopening a long abandoned mine.
Rookie team the Young Guns have a life-threatening near miss as they hunt legendary pineapple opal.
Rookie Sam runs out of air underground.
The Tunnel Rats race to protect their claim as rival miners close in.
New alliances are forged as the Boulder Boys hit pay dirt.
The Bushmen dodge rockfalls in a potentially deadly new mine.
In Sheepyards, NSW, The Bushmen are desperate for a breakthrough after a run of bad luck.
The Bushmen must brave an abandoned mine to remove a dead animal.
The Bushmen confront a miner who has illegally dug their claim.
Aaron and Ron almost lose their $60,000 excavator on unstable ground.
In Lightning Ridge, an injury causes The Bros a serious setback.
The Young Guns' claim is ravaged by a vast dust storm.
Chris arrives in Lightning Ridge, desperate to make a fortune in opal.
The Tunnel Rats get the lifeline they desperately need.
The Young Guns face a tough decision on how to continue mining.
The Bushmen combat opal thieves on land and in the skies.
The Bushmen stay up late to drive out poachers from their mine.
The Young Guns risk it all to find rare pineapple opal. Meanwhile, the Boulder Boys take on deadly ground and the Bushmen face a race to the hospital.
