Freddy and Juan meet Gold Rush veteran Jim Thurber to help turn a 130-year-old mine site in Oregon into a commercially viable mine. But with a team of rookies and a series of bottlenecks in their operation, it's an uphill battle.

In one of their toughest challenges to date, Freddy Dodge and Juan Ibarra fly to a remote mine in Alaska to help three miners struggling to make a profit. Without their trucks or tools, their ingenuity is pushed to the limit.