Hunter treks into the tundra to prospect for new paydirt before the Lost Cut runs dry. Todd secretly ships Jack's 1980s-era washplant to Alaska to fulfill his dad's original gold-mining dream, but reassembling heavy steel on-site brings its own surprises.

A shift in the weather turns Andy's routine mining decision into a potential disaster when melting ice threatens to contaminate the nearby creek with silt. Hoping to avoid a million-dollar loss, Todd attempts an engineering solution to help save the mine.