The Dakota Boys return to McKinley Creek to dive for millions in gold. But the fierce Alaskan winter has destroyed their mining equipment. Their luck changes when Dustin locates the perfect plunge-pool he believes contains a massive pile of nuggets.

'The Dakota Boys' launch their gold dredge. Fred dives in the raging white water, and despite running out of air, the 72-year-old veteran succeeds in finding their first gold.

The first gold nugget promises a monster payday; Dustin dives into the danger zone, a torrent where the current moves rocks, and a rogue boulder almost costs him his life.

Fred's ex-boss, Todd Hoffman, has invested $50,000 in the Dakota Boy's operation and makes a surprise visit in a chopper.

73-year-old Dakota Fred gets married for the fourth time and a landslide upstream threatens to unleash a wall of water that could destroy the dive site and drown the miners.

The Dakota Boys' desperate bid to hit bedrock gold is thwarted when 73-year-old Fred's heating system fails mid-dive and he's is overcome by the glacial Alaskan water.

The Dakota Boys are digging down to bedrock gold but when they hit the biggest boulder of the season Dustin is forced to rig a new mechanical solution the Graboid.

After a devastating end to the season due to a major storm, the miners give us an in-depth look at the ups and downs of mining for gold in whitewater rapids, and what the future looks like for the Dakota Boys and their crew.

A flash flood racing down McKinley Creek threatens to kill the crew and destroy their operation, but the Dakota Boys still manage to find more gold than they've got all season.

High in the Chilkat Mountains of Alaska, the Dakota boys believe McKinley Creek holds millions in gold. They embark on a 4-month journey and make an attempt at the most dangerous gold-mining in the world, dredging beneath freezing white water rapids.

Television's most dangerous gold mining is back. The Dakota Boys double down on everything including crew, locations, and equipment, while the remote Alaska conditions punish their efforts like never before.

Equipment failure leaves one crew member with life-threatening burns, while the advantage of having two dredges up and running proves successful.

A hungry and aggressive apex predator tears through the miners' camp, forcing the crew members to come together to find a solution; the crew uses new equipment to speed up their gold recovery.

Fred and Dustin disagree on where to find the gold and dig separate holes. But, a fierce confrontation jeopardises the entire operation.

The Dakota Boys finally discover a rich nugget trap but inadvertently risk the life of a crew member.

Finding their biggest gold nugget of the season is a great sign, but soon enough heavy rain means flooding, and, despite the danger, the Dakota Boys still go out and dive.

After being rescued from the water, Dustin is forced to look for a new mine site due to the flood, but he soon finds out that the McKinley site may not be a lost cause after all.

Digging deeper than ever, the crew sees no sign of the promised bedrock gold; just when the crew starts to question Dustin's leadership, his determination pays off.

The Dakota boys are dredging towards a nugget trap they believe holds a jackpot of gold. After a rough season, this could this be the life-changing fortune they desperately need.

The group cleans up and does a final gold weigh-in for the season. Meanwhile, Dustin leads the crew to a new mine site that quickly proves to have huge potential.

The Dakota Boys and their crew members reflect on their wild season and look ahead to what's next.

The Dakota Boys and their crew members reflect on their wild season and look ahead to what's next.

In the Dakota Boys' second-year dredging for gold in McKinley Creek, the father and son team face extreme conditions diving for a big payday. When Dustin finds a hot spot, it forces him to reevaluate everything.

Fred and Dustin Hurt decide to split up in their hunt for gold in the raging waters of Alaska's Chilkat mountains. While Fred has an ideal spot picked out, Dustin has a big decision to make about his location.

Fred and his son Dustin risk their lives to find a fortune in gold nuggets, taking them deep beneath the waters of one of Alaska's wildest creeks.

Fred and his crew return to the glory hole to complete unfinished business. Dustin's crew strikes gold, but are blocked by massive boulders and must engineer an insane system of winches and pulleys to go deeper and get down to bedrock.

The Dakota boys bank their first gold hauls of the season. Dustin invents a custom super claw to remove massive boulders from his plunge pool. Fred and his crew are confronted by a deadly cable malfunction.

Dustin's crew is left shorthanded after an unlikely injury, forcing him to take a calculated risk that nearly turns deadly. After his luck turns, Fred's dives on his 76th birthday to decode a bedrock gold mystery.

Dustin discovers a secret gold cave that could hold millions. Fred and his crew head upstream into a mini-waterfall to find a huge deposit of gold, but first they have to move their 700lb dredge up dangerous rapids.

Dustin Hurt hits bedrock and a pile of nuggets at Rainbow's End. Fred chases the gold upstream into a dangerous new spot, forcing him to rethink his plans.

Dustin's on the best ground he's dredged when a new discovery opens the door to even more gold. Fred faces a life-and-death situation opening new ground at Thunder Falls.

Dustin cleans up with his biggest gold haul yet. At Thunder Falls, engine failure and giant boulders block Fred's path to gold, and as the problems escalate, his life is on the line.

Dustin takes a gamble to return to a spot just above McKinley Falls for the remainder of the season, but while moving his dredge down the side a cliff, giant falling rocks threaten his life.

Fred fires his dredge back up and lands his biggest gold haul of the year. Dustin faces an uncertain future and Carlos makes a surprising discovery at the new dive site.

Dakota Fred taps out Thunder Falls with his biggest gold haul. Dustin hits the nugget jackpot at Rockfall Ravine.

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A late start to the season shortens their mining window and with record snowfall melt the crew faces the most dangerous conditions ever. Dustin picks up right where he left off at Rockfall Ravine, while Fred's future diving for gold lies in the balance.

The Dakota Boys race against time and put their new crew members to the test to rebuild their mine sites and haul heavy equipment to the Trifecta and Rockfall Ravine. Their first dive is golden and promises a successful season.

Carlos, Dustin and James battle the fastest and most violent rapids they've ever dove in. They must engineer a way to slow the rapids down or risk being washed over the 80-foot waterfall. A faulty dredge valve on Fred's operation becomes explosive.

Dustin's crew is finally down to virgin ground but discovers their equipment is no match for the giant boulders at Rockfall Ravine, so Wes fabricates a new tool for their arsenal -- The Mammoth Claw.

Dustin's gamble of investing his life savings into these claims is pays off after Carlos removes a monster boulder and finds chunky nuggets. Fred and crew battle the Trifecta, and a game-changing discovery proves Fred's theory of the ancient waterfall.

On a gold streak, Dustin dives deeper than ever and uncovers the largest obstacle of his career. New recruit Scott finally gets the opportunity to prove himself in the water, but a rookie mistake could end his career just as it gets started.

Dustin calls on local legend "The Pirate" for help cracking a boulder blocking him from the richest ground of his life. After Fred is forced to put all diving on hold, Paul returns and they're on track to get gold for the first time this season.