Ken suffers from mechanical difficulties. Bernie struggles with a rookie crew and Big Al has a great start.

While Guillaume Brodeur deals with moving their giant sluice, The Beast, Ken Foy must contend with a bigger challenge – a visit from his wife. Karl Knutson is shocked to learn just how quickly the season is passing, and with one water issue after another, his opportunity for a big payday is dwindling just as fast. A faulty clutch on Al McGregor’s sluice results in a shutdown; it’s a race to get it fixed and get back to work, even if it means working around the clock.

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With the weeks passing quickly, Ken and Guillaume's dreams of striking it big are starting to fade as they face continual equipment breakdowns and a crew member who goes AWOL. Bernie's decision to move to Snow Creek seems to be paying off, if only he can get his sons to step up and meet his expectations. Al McGregor's pay streak is threatened when he breaks a hitch trying to move his sluice.

On Sulphur Creek, young crew boss Karl has no sluice machine, and no sluice means no gold. Karl's father Marty, a highly respected self-made miner, builds a new one from scratch. While Karl waits, he struggles to keep his crew on task – and live up to his father's high expectations. Big Al tests new strategies – and new equipment – on a fresh claim. If only he could keep his machines running.

Karl must deal with mistakes his crew make and design flaws on the massive sluice his dad Marty built. Bernie packs it in at McDame and moves his operation, hoping his fortune is about to change.

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Ken and Guillaume try to reverse their bad luck by moving across Moose Creek. Bernie has to deal with mistakes made by his junior crew. And Karl’s night crew is starting to slow him down.

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The Yukon miners race with the cold weather to get their last bit of pay dirt out of the ground.

Karl hopes to score 100 ounces of gold in one week. Ken weighs the cost of an eager but careless hand who keeps breaking equipment. Big Al has to replace big iron without a big payday.

Ken sinks big money to dig out a narrow cut. New miner Cam’s big payday is threatened by fire. Karl’s experienced but unreliable operator forces his hand.

Ken loses a machine when he can’t afford to pay his debts and his crew. Big Al smells gold in the ground, but gets shut down by equipment breakdowns. Dennis has to scrape $10,000 out of hostile ground to replace a part or face permanent shutdown.

Ken fights a double mutiny when his plant and a crew-member go rogue. Cam’s veteran welder is struck down and airlifted to hospital. Karl’s crew encounters a bear.

Ken’s wife visits to discover he’s on the verge of going broke. Big Al’s excavator takes a nosedive. Karl’s season is threatened by permafrost.

Dennis’ hunt for gold proves unsuccessful. Ken breaks a machine in his haste to sluice. Karl’s cut floods, putting his season in jeopardy.

Ken takes a roll in his bulldozer. Beavers threaten to shut down Big Al. Karl’s loader springs a leak.

Crews are racing to rip through ground as winter descends. Ken and right-hand man Guillaume fight to keep the Beast sluicing through subzero temperatures only to discover the dirt they’ve banked on has run dry. Cam’s plans to mine an ancient waterfall go sideways when the treacherous ground threatens to bench his iron for good. Karl and right-hand man Kyle’s mechanical skills are put to the test when the season takes its toll on Sulphur Creek’s operation.

The short Yukon gold mining season is almost over, and crews are battling the elements in a mad push for gold. Ken is forced to call in reinforcements when winter hits Moose Creek hard. Cam hits an impenetrable ice wall that freezes him out of his cut and moves to risky new ground only to have crucial iron go down. Big Al’s plans to rip through promising dirt are sidelined when his only stripping dozer suffers a catastrophic breakdown that puts right-hand man Hiro’s mechanical skills to the ultimate test.

The miners battle nature’s wrath in an epic final push for gold. Ken’s bid to pull 100 ounces out of hot ground goes sideways when the mine runs out of fuel, forcing him to shut down sluicing and fight his way up Moose Creek’s treacherous road in a desperate bid to get to a fuel station at the top. Karl’s race to mine Sulphur Creek out so he can stake his own claim is benched when one of his crew deals his prize sluice plant a near fatal blow. Big Al follows his gut to high-stakes ground only to be shut out when his only stripping dozer goes down for the count.

Ken and Guillaume journey over a treacherous mountain pass. Cam stresses over getting Oklahoma welder Gary into the country. Mining couple Nika and Chris have a rough start to their season.

Cam gambles on an expensive new water cannon. A broken part on his sluice plant slows Karl's progress. Ken and Guillaume's first gold test is a dud.

Cam and his crew rush to start sluicing Donovan cut. Karl comes up with a clever way to motivate his crew. Chris and Nika's operation is halted by a sluice plant breakdown.

Chris and Nika butt heads while moving to a new cut. Cam struggles with machine failures and contaminated fuel. Ken and Guillaume find traces of gold.