Peter and Mick face off in a challenge to build an opal-hunting machine.
Rookies opal hunters risk it all to chase an opal fortune.
The rookies tread a dangerous path in Coober Pedy.
Pete and Mick's mining operation grinds to a sudden halt.
Opal Queen and her Dad battle the clock, the weather and a deadly cactus.
The Rookies get a lesson in the dangerous art of bomb-making.
The Rookies risk cave-ins while the Bomb King is trapped in the blast zone.
Col's Crew attempts opal spotting from the air to reach their target.
