Foreman Mitch Blaschke steps in for the day, encountering a slew of issues.

Parker's crew risks destroying a million-dollar wash plant to get gold.

A cave-in around a massive excavator threatens Jack's life.

Now back in Oregon, the mining crew provides a behind-the-scenes look at how they felt about their time in Alaska and detail their future plans.

The guys take one more crack at hitting the motherlode in the off season.

The crew is hit by a bombshell shortly after returning to Porcupine Creek.

The crew attempts to salvage their season with a new claim in Klondike.

Jack and Todd get heated over how to set up their new claim.

The Hoffman crew confronts the permafrost that lies between them and gold.

After a crew rebellion, Todd digs test holes on the new claim.

A new love derails the crew just as the Hoffmans are finally on the gold.

The crew rebuilds the wash plant after realizing it's costing them.

The Hoffman crew celebrates their first clean out of the mining season.

Parker's crew risks destroying a million-dollar wash plant to get gold.

Parker unexpectedly loses the pay layer in the long cut.

Parker makes a big call on Dominion Creek's ice-filled ground.

Rick risks flooding Rally Valley to haul in big gold nuggets.

While digging out Vegas Valley, Rick prospects a new area in Keno.

Honoring the life and legacy of grandpa John Schnabel.

Parker's crew risks destroying a million-dollar wash plant to get gold.

Parker unexpectedly loses the pay layer in the long cut.

Parker makes a big call on Dominion Creek's ice-filled ground.

Rick risks flooding Rally Valley to haul in big gold nuggets.

While digging out Vegas Valley, Rick prospects a new area in Keno.

Honoring the life and legacy of grandpa John Schnabel.

The Hoffman crew celebrates their first clean out of the mining season.