Gold Rush: Parker's Trail - Season 4

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.

Parker tests virgin ground on the Fitzgerald claim and makes a big discovery, but he must gain the trust of the family if he wants to strike a deal.

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 makes a gamble on dry-mining equipment to test the gold-rich ground of Western Australia. A case of gold fever proves costly, and Parker nearly loses a team member.

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.

Parker travels deep into Australia's "Super Pit" gold mine, stakes a new claim and makes a big decision that could change his mining career.