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.

A series of questionable calls by Kris brings the Mistress to her breaking point. Mr. Gold takes a huge gamble by mining Cooper Gulch. Vernon acts on a hot prospecting tip. Emily's crew takes risky dives. Zeke's new girl is his gold luck charm on Tomcod.

A brand-new arrival shakes up the gold game as Emily shows Jane Kilcher the ropes of running a dredge. Kris Kelly deals with an excavator malfunction. Hurricane Dave is horrified by Vernon's methods. Digging deep pays off for Mr. Gold.

As tempers flare, the conflict between Shawn and the Kellys becomes physical. Mechanical difficulties plague the Mistress. Vernon is thrilled to have his A-Team back in action. Jane celebrates a gold-laden birthday and Emily drops a bombshell.

Shawn and Kris attempt to settle their feud once and for all. Vernon tussles with an annoying moocher. Jane Kilcher faces a huge challenge out on Claim 14. In the hopes of jump-starting his gold season, Zeke embarks on a marathon suction dredging campaign.

The Gold Ship's crew strikes out on their own while Vernon is away. Shawn faces an unexpected malfunction on the Myrtle just as boss Dave Young comes to inspect it. Zeke and Emily hope that new divers will bring huge paystreaks. Kris returns to the Reaper while the Mistress is out of commission.

Shawn and Vernon embark on a harrowing rescue mission on a stormy Bering Sea. Mistress problems force Kris into limp mode. Zeke relaunches the Havilah with a wild crew.

A shocking injury jeopardizes Kris Kelly's gold goal for the season. Mr. Gold gambles on northern winds and low tides to provide a huge paystreak. Zeke cleans up on the Havilah. Emily and Vernon rally their crews to end the gold summer strong.

A key crew member abandons Kris as he tries to hold onto the Mistress and stay out the longest. Shawn fights to retain his crown as the Gold King of Nome. Zeke and crew have a bro-down on the Havilah. Emily and Vernon's crews vie for a strong, lucrative finish to the season.