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

Bench Marks

Trucking Fun

A Festival of Opal

The Bushmen are forced back into their deadly mine.

Red Tape

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

Water You Waiting For?

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

Glitch in the Matrix

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

Diesel Doozies

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

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.

New Digs

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

School of Hard Rocks

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

Right on the Mark

Brutal Outback temperatures cripple Cozza with severe heat stroke.

Good, Bad and Overcooked

A miscalculation costs the Blacklighters thousands of dollars.

One Plus One Equals Three

The world's toughest treasure hunters push their bodies and bank accounts to the limit on a quest to strike it rich, hunting the legendary Queen of Gems - Opal.

Bench Marks

Seasons15

Season 12 Episodes12

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