Outback Opal Hunters

The Young Guns' season is threatened when JC is injured at a steer riding competition; the Bushmen finally strike opal while digging on the boundary of their claim; the Cheals struggle to get to their claim after weeks of rain.

The Blacklighters break their excavator while trying to break fresh ground; the Young Guns enter a dangerous mine in an attempt to find pineapple opal; the Opal Whisperers work their own claim for the first time to hunt for cathedral opal.

The Bushmen source their own timber to support an unstable mine roof; Rory and Oscar Cheal use their dad's 20-tonne drill rig for the first time; family team the Tarantos struggle to find opals on their massive claim and are struck by sickness.

The Tunnel Rats move a one-tonne digger underground in a vermin-infested mine; the Young Guns take on a dangerous open-cut mine; the Blacklighters access their final pocket of land to find their largest piece of opal.

The Bushmen's new recruit is thrown in the deep end with a treacherous and unstable roof; the Tarantos' overworked excavator gives out; the Cheal's machinery is hit with a number of breakdowns.

The Bishop mines the support pillars in a mammoth new claim; the Tunnel Rats risk electrocution while using their one-tonne digger to mine for crystal opal; the Misfits hunt for Andamooka opal in isolated mines in South Australia.