Freddy and Juan face a mine intervention at a 30-year-old Nevada claim. They race to convert the rickety old plant into a new fine gold super sluice.

In the Oregon mountains, Freddy and Juan help father-and-son miners on the brink of failure. A water issue leads them to their biggest fear: no gold.

A one-man band British Columbia miner needs Freddy and Juan to triple his gold to avoid ruin; once the rescue begins, it quickly becomes too much work for a solo operation -- meaning that the miner's reluctant wife must learn to use heavy machinery.

Married Montana miners dream of building a gold mining dynasty on their nugget-rich claim. But the valley's patchy pay and a critical failure at the wash plant lead to Freddy and Juan facing their first-ever failed rescue.

A trio of young Idaho miners struggles to find enough gold. To save them, Freddy and Juan bring new ingenuity to keep their mine alive. First, Freddy must identify a heavy, mysterious material he's never seen before, hindering their clean-ups.

A 17-year-old mining prodigy, his father and grandfather wrestle with wintry weather to get their season underway in central Alaska. With another snowstorm brewing on the horizon, Freddy and Juan race to complete fixes before it's too late.