Outback Opal Hunters 13-1

Right on the Mark. When Mark is hospitalised after a mining accident, Paul and John must work overtime on two separate claims to scrape together enough opal to survive the week.

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 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.