A crisis in the Klondike forces Tony, Parker and Rick to make massive gambles to strike it rich and must now hunt for gold on new grounds. The setback hits at the worst time as the price of gold spikes, which sparks a new gold rush to the area.

Parker bets millions on his crew sluicing in record time and is forced to make a decision when things don't go as planned. Rick rushes to fire up his washplant and find big nuggets. A showdown on the Indian River sends a Klondike legend scrambling.

Rick and his dad fly high into Keno mountains on a treasure hunt for massive nuggets. Tony and Monica investigate a gold hot spot the old dredges may have missed. Parker makes a big decision about his crew that could determine the fate of his season.

Parker second guesses the ground he's mining and questions his new foremen. Tony Beets makes a big decision to move the family's entire operation. Rick's mechanic arrives at a critical moment.

Parker takes on a huge engineering challenge. Rick makes a major upgrade to his mining operation. Mike and Monica team up to open up more ground.

As Rick continues to search for big nuggets, he buys a monster washplant. A flood puts Tony's new claim in jeopardy as well as his season. Parker needs to move Big Red in record time.

The Beets discover what could be the motherlode. Rick faces an impossible decision: mine gold or put together his new washplant. Parker tests his new co-foreman with the claims most important machine.

Rick races to get Monster Red running after losing his only way to mine gold. A dangerous storm shuts down Parker's operation. The Beets family push to get Monica's potentially gold-rich cut up and running.

Tensions rise when Parker introduces a new crewmember and a radical plan. The Beets run a crucial test that could make or break the season. Dustin's crew is left shorthanded after an unlikely injury and Fred decodes a gold mystery.

Rick's season hangs in the balance when an engineering disaster shuts him down. Parker sinks a ton of money into a new claim. Tony gets a third operation running.

Rick tries to outsmart a vital piece of equipment that has a mind of its own. Parker splurges on a brand new toy to get more gold. The Beets bring in a hired gun to turn around the season.

Parker gambles big and splits his crew in search of a massive score. Rick calls in a mining legend to save his season. The Beets move heaven and earth to get all three kids bringing in gold. The Dirt returns and the miners answer all the burning questions.

Rick brings in a secret weapon in his hunt for big nuggets. Tony's confronted with a catastrophic issue at his settling pond. Parker makes a risky decision when he hires a friend with no mining experience to help the crew get ahead.

The mining season is nearly over, and Rick Ness and his crew are making up for lost time. Plus, Tony goes off the beaten track in his search for gold.

Parker makes a big move to double his output and bring in more gold. The Beets' face catastrophe when their only remaining operation grinds to a halt. Just as Rick gets Monster Red dialed in, huge rocks threaten to shut him down for good.

As the problems keep mounting up for Rick, tempers fray at Duncan Creek. Parker pushes his crew too hard as he attempts to keep two washplants fed.

Parker struggles to keep up his record-breaking pace, while a huge mistake threatens Rick's operation. Monica hopes the ground has thawed so she can hit gold.

Rick confronts his landowners. Parker searches for new ground. Tony makes a big purchase.

Rick hits a gold layer that may save his season. Parker's crew take big risks in Death Valley. Tony turns a corner.

Nearing the end of his season, Parker closes in on a record gold total. Rick bets on a new piece of ground to finish his season with some more gold. Tony turns to Hunter Creek for one final score.