The Kellys quarrel while trying to make their Crawler work.
A young mining gangster challenges Mr. Gold's dominance.
Innovative mining strategies pay off for Chris and Shawn.
Chris McCully continues to pose a serious threat to Mr. Gold.
Shawn and Zeke each risk dangerous ice missions for big paystreaks.
Danger and terror plague the hapless miners of Nome.
The Kellys unveil their secret gold mining weapon.
Chris McCully hits a lucrative paystreak he deems "Wall Street.
Jane clashes with Emily's crew. Shawn and Chris face equipment failures.
Mr. Gold and Chris McCully battle for top spot on the gold board.