A rocket scientist, a social media guru and the Lebron James of Dodgeball compete for one of the final spots in the championship. Twists and turns on the course abound, including a mighty new weapon that will make even the God of Thunder tremble!

Contestants are plagued by exploding balls, a barrage of buckshot and more!

Custom-car craftsman Chad Hiltz hand-builds an elegant one-of-a-kind coupe.

Chad takes on a commission to build a custom 1930s-style delivery truck.

Chad builds a custom, bare-metal truck from scratch to give away.

Chad creates a space-age drag car out of a station wagon.

Chad is racing to finish a custom dragster with a bubble top and wings.

Chad takes on his most important build yet -- an elegant 1930s speedster.

Chad takes on a '57 Cadillac -- his first build at Hiltz Automotive.

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.