Parker takes the team Down Under to search for a gold-rich claim.

Tempted by the largest nuggets he's ever seen, Parker ventures deep into an underground mine. Tyler tracks down a trommel for the team and a local miner lets the team test a claim that yields more gold per yard than Parker's ever seen in the Yukon.

In the legendary Palmer goldfields, Parker and his team encounter a lucrative family-run mining operation and discover dirt far richer than anything they've seen in the Yukon. But convincing the family to lease him virgin ground will come at a price.

Hot, parched country and broken machinery place a toll on the team as pressure mounts to find gold. Tyler and Parker use detectors in search of gold beneath the cool waters of an outback oasis

In an area known to locals as "Hell's Crack," Parker and his team navigate a treacherous river, battle extreme heat and fight machine breakdowns to prospect ground so rich it could hold 100 million dollars worth of gold.

Hunting for a huge payday in Tyler's hometown of Sandstone, the team encounters a dangerous new method for extracting gold and Parker must decide if the risk is worth the reward.

Parker and the gang get a bang out of hard rock mining.

Tyler leads Parker to a promising hard rock mine where they detonate high explosives to gauge if the rewards of underground mining justify the risks.

Tyler researches available claims that will expire, and finds one that's up for grabs. The group race to stake a claim at the stroke of midnight.

As Parker's team takes stock of the gold they've found on their epic eight week expedition across Australia, Parker must decide on his own plans for a future, and how the right ground in the Outback might extend his mining season year-round.

Parker begins booting up his new gold mining operation in Alaska. When he can't find a wash plant in the snow-covered north, he gambles on a last minute trip to New Zealand -- home to big gold and top-notch miners.

Parker and team venture off-grid to track down a legendary miner known as The Gambler on the gold-rich west coast of New Zealand. Parker's blown away by what he finds in the sluice.

Parker sizes up a high-tech gold-catching machine capable of floating on water. A sudden storm threatens to trap the team on a New Zealand glacier.

Parker jumps at an unexpected offer for a new claim and prospects Matt Dove's virgin ground in New Zealand's gold-rich Southern Alps.

Parker investigates a bucket dredge that's banked over $700 million and discovers his version of paradise: a gold-rich claim with every type of plant needed to strike it rich.

Parker pivots to test a shaker deck, but his inability to pull the trigger leads him to question the viability of his new Alaska operation.

Parker checks out a wash plant on tracks and considers a major pivot -- building his own custom plant for the Alaska claim; Tyler and Jeff prospect for gold nuggets in New Zealand's richest river.

Parker dives into shark-infested waters hoping to find gold; he explores a high-dollar rock mine and reveals the design of his Alaska wash plant.

Parker and his team travel to South America in search of a claim to mine with $100 million dollars in gold; following the Incan trail deep into the Peruvian jungle where they battle wildlife and mother nature to find virgin ground.

Parker heads to the Madre de Dios mining district, where he discovers ground so rich he scoops shovels full of gold straight from a riverbank. The team head deep into the jungle with a local tribe to prospect for virgin ground.

Parker prospects La Rinconada mountain, the highest gold mine on earth and a nearly lawless boomtown filled with 60,000 miners. Parker discovers big gold using hand-lit explosives, but a sudden illness threatens to end the trip early.

Parker follows the gold into Bolivia where he hopes to tap into its $2.5 billion gold industry. The crew get a lead on a placer operation but are confronted by the claim’s 32 owners at the gate.

Parker uncovers a fleet of monster 110-ton excavators scooping paydirt from the riverbed deep in the Bolivian jungle. Just when he gets to the gold, two of his team members fall sick.

Parker storms into Bolivia's gold belt to prospect virgin ground that could hold two million ounces of gold -- right where Butch Cassidy and The Sundance Kid roamed.

Parker goes all-in and starts mining the 400-acre Bonanza Creek claim, but a chance encounter with neighboring miners could offer him something even better.

Parker strikes gold in Bolivia at a location that could be the next Klondike; with time running out on his prospect, Parker faces a big decision.