As time runs out, the Poseidon Crew call in a trusted ally. The Mackies detonate explosives to obliterate impenetrable rock and Jacqui and Andrew gamble everything to strike gold.
The Desert Diggers secure a season-changing deal, gambling on untested ground. The Poseidon Crew expand operations at German Gully to find big gold, and intense summer heat pushes The Wanderers to the brink.
The Poseidon Crew and Neville Perry's sons make their long-awaited return to German Gully. The Desert Diggers wade through mud for a major payday, while Sheryl and Simon battle breakdowns to hit their gold target.
Armed with new information, Shane and Russell chase lost gold on Mosquito Creek, disaster strikes the Desert Diggers as they push to double their output.
Brent tests the mining skills of his late friend Neville Perry’s sons, a mechanical fault stalls The Wanderers' excavator, and The Mackies make a risky investment on new ground.
Intense heat pushes Jacqui and Andrew to their limits, high winds threaten The Desert Diggers' relocation plans, and Shane and Rusty battle breakdowns and brutal conditions to keep their Fantasy Gully operation alive.
Disaster strikes when a would-be thief crashes The Desert Diggers loader, Shane and Rusty drag their dry blower across the treacherous ground, and Jacqui and Andrew recruit a new prospector to their team.
Brent and son Cayden set off on an adventure to find highly valuable, crystalline gold while the Wanderers are forced to protect their patch from prying eyes,.