Brand new team Digi Diggers bring brand new technology to the opal fields and Josiah and Lisa soon find themselves at breaking point.

The Bushmen trial a rookie miner, Ben, to operate their drill to find new opal bearing ground, but he falls short at the first challenge.

The Opal Whisperers work underground together for the first time on a legendary claim where the million-dollar opal `The Angel of Yowah' was found decades earlier.

The Digi Diggers need to explore new ground after mining opal too brittle to sell. The Bushmen discover their new claim has been dug out by opal thieves.

The Cheals, Chris, and son's Rory and Oscar are cut off from their mine by crippling floods. Oscar bogs their truck in treacherous mud attempting to reach the claim.

Gale-force winds threaten the Digi Diggers' dreams of an eco-mine. The Bushmen discover dangerous old workings while clearing out their new mine. Angel and Joe's search to join the Misfits threatens to tear the team apart.