The Bushmen's new rookie rushes into a deadly no-go zone. The Cheals attempt to revive their season. The Mooka Boys try a new technique to expose opal in colorless rock.

Handwritten clues left by Leif's late father help the Mooka Boys hunt for an abandoned mine. The Blacklighters battle choking dust on their dry claim. The Tarantos make emergency repairs on their bulldozer.