In season four gold miners Dakota Fred and his son Dustin are determined to make a fortune no matter the risk.
A late start to the season and record snowfall melt create challenges for the crew. Dustin picks up where he left off as Fred's future lies in the balance.
At Porcupine Creek, Fred and Dustin are racing to start their seasons and Dustin’s crew is finally ready to send the dredge to the dive site.
Carlos, Dustin and James battle the most violent rapids they've ever seen. They must engineer a way to slow the rapids down or risk being washed over an 80-foot drop.
Dustin's crew discovers their equipment is no match for the boulders at Rockfall Ravine, so Wes fabricates a new tool. Fred puts greenhorn Scott to the test.
Dustin's risky gamble of investing his life savings pays off after Carlos removes a monster boulder and finds chunky nuggets. Fred and crew battle the Trifecta.
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.
Dustin calls on a legend for help cracking a boulder on rich ground. After Fred is forced to halt all diving, Paul returns and they're on track to get gold.
Fred turns to Dustin for help after finding an overhanging boulder that threatens divers below it. But tensions run high once Dustin takes control.
Ryan faces his worst fears as he dives deep into a narrow hole. Carlos finally hits bedrock at Rockfall Ravine and reveals that this dive site could pay out huge.
With their richest site picked clean, Dustin and crew move upstream to a promising but dangerous site with strong rapids. Fred and crew rethink their operation.
At his new dive site Dustin’s life is endangered after being overpowered by raging white water. After heavy rain, Fred's crew has a deadly encounter.
Dustin risks the rest of his season on a move upstream to raging waters in a quest to add to his gold haul. After a brush with death, Fred must come up with a new plan.
Dustin's crew make an exciting discovery that pushes them to test their limits. Fred's crew is dangerously deep and under pressure to get down to bedrock.
A storm turns McKinley Creek into a raging torrent, but Dustin is unwilling to call it quits. Fred's fears come true as the walls of his dive hole come crashing down.
Determined to add to his season's record-breaking gold haul, Dustin pushes his luck and a freak accident sends him hurtling out of control towards an 80-foot drop.
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