Mining empires expand and clash in an epic battle to dominate Nome. Mr. Gold has a plan to yield 3000 ounces. The Kellys impress a new investor. Vernon builds a kingdom on Claim 56. Zeke has a deal to work Tomcod. Emily makes a surprise announcement.

Two monster dredges duke it out on the Bering Sea as a war brews between Shawn and Kris. Vernon's diver bleeds on his ascent. Emily deals with mechanical difficulties. A notorious nomad returns to team with Zeke.