The Young Guns' season begins with JC breaking his body while competing in a bull-riding fundraiser. Rod partners up with a pair of local wild boys and flooding causes the Cheals' mining to drag.

Isaac and Sofia -- the Opal Whisperers -- set out to prove themselves as miners. Jaymin and Noah explore a dangerous mine alone while the Blacklighters are hit with a crippling excavator breakdown.

The Tarantos family is struck down by illness while trying to resurrect their glory days. Oscar and Rory operate the exploration drill for the first time and the Bushmen look for timber to support their collapsing mine roof.

JC returns to White Cliffs after his accident while Blacklight Xavier misses a massive pocket of opal passing through the noodling machine. The Tunnel Rats start their season in a vermin-infested mine.

The Tarantos' excavator grinds to a halt at the bottom of their mine. The Cheals also face machinery failure as Rory busts their digger underground. The Bushmen's roof is on the edge of collapse.

The Misfits give it all they've got to prove their worth in the mine fields of South Australia. The Bishop loses his prized claim to competitors while the Tunnel Rats risk electrocution while operating their digger.