Parker visits his rival Todd to make a wager on who will get the most gold. Later, mining legend Tony Beets reveals a new addition to his operation -- an antique mining dredge -- but finds out it's missing a critical component.
Parker makes an ambitious payment to his landlord that puts a lot of pressure on his team to hit their season goal. Meanwhile, the Hoffmans attempt to open new ground and quickly find themselves in a muddy mess.
Parker leaves the Boundary Cut hoping to continue his winning streak in a new location. Later, Todd celebrates his best cleanup of the season but his victory is cut short when his landlord drops a game-changing bombshell.
Todd Hoffman searches for a new claim in Oregon hoping to save his crew from losing their jobs. Meanwhile, Parker's crew reaches their boiling point after he orders them to move the washplant in a hurry.
Parker tackles a frozen cut hoping to keep his lead over Todd. Meanwhile, Todd doubles down by buying a second monster washplant. Later, Tony's progress stalls after discovering a vital component of his operation is broken.
As the mining season ends, the Hoffmans are enthusiastic about beating Parker but their equipment and crew are overworked. Meanwhile, Parker attempts to stay ahead and Tony sticks with his operation despite having a rough year.
Todd opens a second Colorado operation hoping to find the gold he needs. Meanwhile, Parker tries out a new mechanic who fails to get approval from Mitch as Tony sets sail up the mighty Yukon river in a rented power-barge.
Parker is forced to call his dad to help him get back to mining for gold. Todd's cousin helps the Hoffmans with the best clean-up of the season and Tony's daughter gets a little help from her brother to fix up her washplant.
Todd's entire operation is put on hold after a beaver dams his water supply. Later, Parker's new washplant becomes a nightmare after Brennan drives an excavator into a pond and Tony finally gets his dredge working.
Todd goes up a mountain to look for new ground and returns with a handful of monster nuggets. Parker and Rick have conveyor issues while Tony and Monica pit their modern washplant against Kevin's 75-year old dredge.
Todd uses explosive means to blast past monster boulders and to the gold that lies beneath. Later, Parker battles a flooded cut for a shot at an all-time record and Tony continues up the Yukon River in his massive power barge.
As the crews face off in a final push before the big freeze, a bare-knuckle fight separates members of the Hoffman crew and Tony's plan to relocate stalls out. Later, Parker confronts breakdowns while striving for his biggest score yet.
The Hoffmans are given a unique form of inspiration in the form of a solar eclipse. Parker turns Rick's operation around while he's away and Mike takes the lead on the family barge but his trip down the mighty Yukon doesn't go as planned.
Todd's season gets kicked off with a surprise ruling from the county. Meanwhile, Parker's foreman returns to his operation to find it's in an unsavory state and Tony's dredge hits a wall of permafrost that prevents him from getting the gold.
The Hoffmans experience disfunction after Todd's son makes a rookie mistake. Tony gets creative while tearing down his second dredge and Parker risks damaging his washplant while rushing to finish his Scribner Creek operation.
Parker's crew gets stuck in the mud after opening a new cut and Todd hopes to assemble a new washplant with Hunter's help. Meanwhile, Tony gets stuck up the creek without a proper barge.
Parker attempts a massive washplant move all on his own while Todd races to set up a new trommel. Todd later experiences a medical emergency and Tony's daughter makes a costly mistake.
Rick's Indian River operation is in danger of shutting down after a production dive and Tony's progress is stalled when his son takes a break. Later, Todd's crew investigates a mountainside after being given an ultimatum.
Parker confronts Tony on suspicion of sabotaging his new ground while Todd deals with a washplant that's pushing the limits of the noise regulation. Later, Tony faces his biggest challenge yet while tearing down his second dredge.
Parker gets an unexpected shock after test panning his first-ever Klondike claim. Later, Todd uses chemicals to break a monster boulder and Tony nearly loses a crew member on the second dredge.
Tony's operation hits a wall after teardown issues and Todd's son Hunter demands a new claim site for the future. Later, Parker attempts to go off on his own but Tony isn't keen on the idea.
The big day for Todd and Parker's 100-ounce bet has arrived and while Parker is chasing a record-breaking $7.2-million season, Todd is desperately trying to keep his crew from falling apart. Meanwhile, Tony tries to beat the mighty Yukon freeze.
The miners reveal the many issues they've faced in the Klondike and reflect on how they got where they are. Later, experts help the miners work more efficiently with modern technology and mechanical innovations.
Rick and Freddy risk sacrificing thousands in gold due to wash plant issues. Meanwhile Parker moves his biggest wash plant and Monica strives toward her 6,000-ounce season dream.
Rick has his claim shut down after a disastrous mistake while Parker threatens one of his crew's veterans with demotion. Later, Tony revives an ancient wash plant hoping to get it up and running again.
Brennan is challenged to move a wash plant in 24 hours and Rick's crew struggles after someone contracts a life-threatening illness. Meanwhile, the Beets family prepares for Monica's wedding.
A terrible injury is the result of Parker's time on a jet boat and frozen ground threatens to shut down Rick's season. Later, Tony and his family prepare to rebuild his million-dollar dredge.
The Beets family attempts a dangerous crane job while Rick fights frozen ground to keep his season afloat. Later, Parker pushes his plant beyond its limit while trying to get every last bit of gold out.
Parker's wash plant Big Red is running dry as he approaches his $7.2-million target. Later, Rick prepares to run 24/7 to hit his goal and Tony makes a dangerous call.
Parker gets a little help from his parents while Rick struggles to hit 1,000 ounces before the big freeze. Later, shocking news forces Tony to make a tough decision about his season.
Rick's crew fights to get the last bit of gold before they're shut down. Later, Tony finishes his second dredge and Parker makes the riskiest move of his season.
Parker's wash plant catches fire before he hits his $8.4-million season. Rick's crew finishes strong and Tony heads into the wilderness to get his ancient dredge operating.