Ep 18. Right on the Mark

Closing in on their one-million-dollar season target, the Cheals finally get two agitators up and running doubling opal production but face off against veteran opal dealer Sonja Trifunovic in an attempted one hundred-thousand-dollar sale. The Blacklighters' team leader Mark I'Anson is severely injured and hospitalised in a mining accident forcing Paul and John to work overtime on two separate claims to scrape together enough opal to survive the week. On their last load of fuel, the Mooka Boys' season from hell continues as their only working digger overheats and dumps diesel, forcing Matt and brother Cozza on a night mission that unearths unusual glowing yellow rocks.