The Bushmen's home-made hoist and bucket fails, and Rod is forced to down tools with busted ribs. Les discovers a seam of opal but fails to impress a buyer who makes a low ball offer, raising the Bushmen's ire. Sofia and Isaac, The Opal Whisperers, get trapped at the bottom of their open cut mine in sweltering temperatures. Sofia's jeweler is unimpressed by the opal she must work with to create bespoke necklaces. The Cheals start work on a new mine only to discover their mothballed machinery needs major repairs and flooded access roads to their processing plant bog their dirt hauling truck.