Outback Opal Hunters 11-1

Bench Marks. The Mooka Boys’ hopes of black opal are decimated by a busted starter motor on their dozer. Oscar sends The Cheals on an important mission to unearth rare green-orange gemstones.

The Boulder Boys try to reach a suspected 20-meter-deep opal level by draining floodwater; Rod Manning uses his wife's opal ring as collateral.

The Young Guns tackle their new mine with the lack of air causeing a headache. Pete and Sam have one last chance to find opal to keep their operation alive.