A miscalculation costs the Blacklighters thousands of dollars.
Brutal Outback temperatures cripple Cozza with severe heat stroke.
The Blacklighters' leader Mark is severely injured in a mining accident.
The Mooka Boys' last working machine suffers a catastrophic breakdown.
Dan Measey takes a gamble on a new but unproven opal-detecting AI technology.
The Mooka Boys crane a vital DIY shelter across the Lunatic Opal Field.
The Cheals must unearth a rare green-orange gemstone for a potential buyer.
With the Lightning Ridge Opal Festival a day away, Cody cooks up a miracle.
Mark's inexperience with the dozer proves too much for Paul.
The Misfits are forced to use untested contraptions to find the rainbow matrix.
Blacklighters Mark L'Anson and Paul Coon get boxed-in during their mission.
The Bushmen are forced back into their deadly mine.
The Blacklighers are hit with a double dose of disaster.
When Chris suffers a spider bite, Oscar and Luca take up the mining mantle.
The Cheals' dreams of expanding their Opal Empire are crushed.
Sam smashes valuable opal with a jackhammer in the Bushmen's mine.
Slim Pickings' efforts are derailed by a slipped excavator track.
The Misfits struggle to find an opal king stone for an interstate buyer.
The Bushmen are blindsided by a catastrophic digger failure.
Gross incompetence lands The Blacklighters in hot water with Mark's wife.
