
Season 4
Episodes

1. Episode 1
2020-02-06
In 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.

2. Episode 2
2020-02-13
The Bushmen face off against a miner who has illegally dug on their claim.

3. Episode 3
2020-02-20
The 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.

4. Episode 4
2020-02-27
In Opalton, Boulder Boys Aaron and Ron's excavator has a close call.

5. Episode 5
2020-03-05
The 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.

6. Episode 6
2020-03-12
The 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.

7. Episode 7
2020-03-19
A 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.

8. Episode 8
2020-03-26
Tunnel 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.

9. Episode 9
2020-04-02
The Australian outback's wildest treasure hunters face even bigger challenges in their quest to strike it rich, as they seek the legendary queen of gems: the opal.

10. Episode 10
2020-04-09
Following six teams across Australia as they search for the country's most iconic gemstone.

11. Episode 11
2020-04-16
No overview available.

12. Episode 12
2020-04-23
No overview available.