In the wake of sudden government shutdowns, the Bushmen are forced back into Robbie's, their deadly mine, where they're installing props in a desperate attempt to reinforce the crumbling roof before it collapses. With hopes of a future funded by opal slipping further away, Dan and Renee must work overtime into the night, digging too much too fast in their impatience and almost burying Renee alive. In dire need of funds and working on his own, Mooka Boy Cozza Kathagen is driven underground into a condemned old timers' mine that, with its crumbling ceiling, threatens to become his sandstone sarcophagus.