Shawn gets his first taste of the shifting seabed. Ken tries a new perspective to find new ground. Kris and Emily each try out greenhorn divers to boost their productivity, but the plan grinds to a halt for one of them.
In the frontier town of Nome, Alaska, there's a gold rush on. But you've never seen gold mining like this before - here, the precious metal isn't found in the ground. It's sitting in the most unlikely of places: the bottom of the frigid, unpredictable Bering Sea. And there are a handful of people willing to risk it all to bring it to the surface.