Mining season has just begun as newcomer Big Al gets off to a great start, Bernie struggles with an inexperienced crew, and best friends Ken and Guillaume can't find any gold at all.

Ken and Guillaume fight a flooding creek, Karl is still waiting to get his sluice set up, and Big Al goes after the 'smart' gold.

Ken and Guillaume's equipment problems mean they are only sluicing half of what they should be, Karl must deal with machine design flaw, and Bernie moves his operation hoping his luck will change.

Ken and Guillaume face breakdowns as a crew member goes AWOL, Bernie's move to Snow Creek seems to be paying off - if he can get his sons to step up - and Al's streak is threatened.

Guillaume tries to move the Beast, Ken contends with a bigger challenge - a visit from his wife - Karl is set back by one issue after another, and Al works around the clock to fix faulty machinery.

To prepare for winter in the Arctic, the Alaskans must overcome challenges as they travel through unfamiliar territories. They must take advantage of the fall season by stockpiling resources.

To ensure their survival for the upcoming winter, Alaskans must head out into the fray. From scouting for resources in sub-zero temperatures to hiking the countryside in search of food.

Inside Butler County Jail, the sheriff leads a fight against an opioid crisis. Investigators work to dismantle trafficking rings, while a rookie officer confronts the harsh cycle of repeat offenders.

The Dust Devils pour $40,000 into a new Heap Leach plant, 50°C heat threatens to shut the Ferals down, and an angry confrontation could see Marcus, Linden and Dale thrown off of a lease.

Jacqui and Andrew unearth the biggest nugget of their careers, the Ferals invest in a mobile sluice that could save their season, and the Poseidon Crew struggle with a waterlogged lease.

The Poseidon Crew clash over a risky return to the Slip Up lease, Shane and Russell suffer another mechanical breakdown, and heat and exhaustion puts the Ferals' hopes of reaching target in jeopardy.