The Bushmen are forced back into their deadly mine.

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

The Misfits are forced to use untested contraptions to find the 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 a 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.