Parker and crew reveal why the Kiwis hide their gold, a cure for hangovers and just how close one of them came to death.

Parker dives for gold in shark-infested waters, explores a billion-dollar hard rock mine and reveals his final Alaska wash plant design.

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 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 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 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 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 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 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 travels Australia's legendary gold fields searching for a new claim and uncovers the largest nuggets he's ever seen.