Mark gets back on the heavy machinery that nearly killed him.

The Mooka Boys face the new season without Chief mechanic Leif Tanzer. Opal thieves have ransacked The Bushmen’s claim.

When the excavator breaks down, Mark comes up with a solution that ends up costing a small fortune. Lee and Roger's old dry rumbler refuses to start.

Slim Pickings are suddenly a man down when Lee shocks Roger with an unexpected injury. The Misfits divide and conquer at their Lunatic Claim.

The Bushmen's bad luck continues when Rod and Les near-destroy Sam's hoist while helping set up her new claim.

The Misfits receive a tongue lashing from 'Opal' Joe Kalmar for not producing enough opal. The Cheals' giant prospecting drill is crippled by mud.

The Bushmen are greeted by a fierce creature in their underground mine. The Opal Lovers enlist the help of some friendly backpackers.