The wash plant is ready. Andreas wants to use the dredge to search for precious metals in a gravel works in Germany. But does the machine keep what it promises? And does it create enough negative pressure to suck stones and soil out of the rivers in Australia? The first endurance test is sobering. Meanwhile, Mat and his brother Rhien roll up their sleeves on a goldfield on the Palmer River. The men Down Under are rewarded with a few nuggets for their efforts. But the yield is not enough to settle all outstanding accounts.