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... On their last load of fuel, the Mooka Boys’ season from hell continues as their only working digger overheats and dumps diesel...