Forced to backfill a deadly section of their Robbie's Mine, the Bushmen scramble to dig to a newly drilled emergency shaft before they can resume mining. A seized power pack then thwarts their efforts. Desperate to recover costs and hot on the trail of elusive color, the Blacklighters enlist team finance manager Rachel to truck loads of dirt from Servo's claim to process through Opalzilla in a struggle to maximize findings. As the mercury soars, the Mooka Boys embark on a dangerous mission to crane a vital DIY shelter across the Lunatic Opal Field before they can continue mining in the blistering sun. Cozza bogs the dump truck.