King of the Hill

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.

Joe and Tash fossick on the surface with hand tools after the Tarantos fails to bring up any color. The Opal Whisperers try constructing a noodler from scrap material while the Misfits narrowly avoid an avalanche.

Machinery woes cause the Cheals to end their opal dreams and consider splitting ways. The Blacklighters move to a new site while Jaymin and JC work alone in claustrophobic tunnels.

The Bushmen's new rookie rushes into a deadly no-go zone while the Cheals attempt to revive their season. The Mooka Boys try a new technique to expose opal in colorless rock.

A bomb expert comes in to blast impenetrable rock for the Bishop. The Cheals race to move a rock-extracting blower before heat damages their machine and the Misfits battle avalanches and dust storms.

Greg explores the hidden tunnels on his massive claim searching for white opal. The Tarantos' excavator springs a leak and the Blacklighters look for a new house.

The Bushmen drill with a 50-year-old exploration rig for the first time and the Mooka Boys hunt for treasure in a scorpion-riddled mine. The Cheals close in on a promising pocket.

The Young Guns face dangerous roads and impenetrable mine walls and faulty electronics spark a fire in the Opal Whisperers' HQ. The Blacklighters risk losing their plan as their generator dies.

The Bushmen find a hidden shaft by falling into it and the Blacklighters brand-new investment is dead in the water. A busted jackhammer forces JC and the Young Guns to make emergency repairs halfway down the mine shaft.

The Bushmen are dismayed after taking over their new recruit's mine and finding it is both treacherous and light on opal. The Bishop turns to explosive means to move a wall while the Misfits work underground for the first time.

Scott and the Bishop cause an avalanche while trying to secure a wall. The Mooka Boys' bobcat suffers a critical failure and the Blacklighters dig into a rich-and-dangerous abandoned mine.

The Misfits prove their worth to Opal Joe with an ancient bulldozer on their last dig. The Opal Whisperers suffer from infighting and the Cheals race against the clock and seasonal storms to rescue their mission.

A massive lightning storm causes the Young Guns to work on a series of flooded dirt roads. The Bushmen risk it all in a dangerous area vandalized by opal thieves and the Blacklighters take their chances with night mining.