Isaac from the Opal Whisperers works an abandoned, dangerous mine, and partners up with a veteran Yowah miner to unearth an exquisite stone he attempts to sell to an international buyer. The Misfits battle to haul their new opal processing plant across brutal outback track with a busted trailer. The Mooka Boys are confronted by an irate miner as they peg a claim too close to his mine.