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. Desperate to recover costs and hot on the trail of elusive colour, The Blacklighters enlist team finance manager, Rachel, to truck loads of dirt from Servo claim to process through Opalzilla in a struggle to maximise 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.