Season 4

2020 · 12 episodes

Season 4 originally aired on Thursday, February 6, 2020

1Episode 1In Mintabie, South Australia, The Tunnel Rats are under extra pressure as rival miners close in on their claim. In Sheepyards, NSW, The Bushmen must brave an abandoned mine to remove a dead animal. Meanwhile, rookie prospectors The Poms seek a prize opal to kickstart their mining career.
2Episode 2The Bushmen face off against a miner who has illegally dug on their claim.
3Episode 3The Tunnel Rats deal with an unexploded bomb and hazardous gases; The Bros attempt to fit their equipment into a new mine; The Poms make their first trip underground.
4Episode 4In Opalton, Boulder Boys Aaron and Ron's excavator has a close call.
5Episode 5The Bushmen take a big risk, trying out a new mining method deep below the ground, and injury slows down progress for The Bros and The Poms are struggling to find their first piece of opal.
6Episode 6The Boulder Boys, who are within reach of their $100,000 season target, chase old leads that could see them strike it rich and The Bushmen face a disaster underground.
7Episode 7A violent summer storm sees The Young Guns race to save their only claim from a flood; meanwhile The McFarlanes must build a drill from spare parts.
8Episode 8Tunnel Rats Bayden Pearse and Leese Grobe get the lifeline they desperately need. Meanwhile, Pete Cooke and Sam Westra are on the last dig of their season, and 20-year-old Sam must decide whether to quit opal mining for good.
9Episode 9The Tunnel Rats struggle working on unfamiliar ground. The Boulder Boys try to keep their jobs with a last-ditch hunt to satisfy their mining partners.
10Episode 10The Bushmen combat opal thieves on land and in the skies. Plus, Lightning Ridge's Gavan McFarlane puts his son to work and the Boulder Boys dig their way out of trouble.
11Episode 11The Bushmen stay up late to drive out poachers from their mine. Col Duff reunites with Greg Geran in one last push to find opal before the summer heat gets too much.
12Episode 12The Young Guns risk it all to find rare pineapple opal. Meanwhile, the Boulder Boys take on deadly ground and the Bushmen face a race to the hospital.

Episodes