Another mining season brings new methods of finding gold under the sea.

Emily scrambles as her dredge loses power and drifts towards a jetty.

Shawn searches for new ground after novice miners pick his spot clean.

Kris worries that claim jumpers will prevent him from getting rich.

A large storm bears down on the miners, who are reluctant to stop dredging.

A storm hits Nome and the miners use their downtime to make repairs.

Emily risks the life of a diver when she tests her faulty equipment.

Shawn works double time when his crew burns out from exhaustion.

Emily sends expert diver Daryl 40 feet under in a dangerous bid for gold.

Shawn has an ingenious idea to capture more gold as winter approaches.

Shawn takes some dangerous risks in his bid to fund the mega-dredge.

Shawn and Ken meet to discuss their futures as the largest miners in Nome.

The miners persevere through the worst conditions in a decade.

Ken unleashes his 600-ton gold gobbler. Vernon returns with a new dredge.

Ken's mining monster roars to life, and currents threaten the Kellys.

Vernon gets stranded in the Yukon, and Ken suffers a mechanical setback.