Overview
To reach the isolated town of Bettles, Jack Jesse must brave the arctic wilderness and cross a frozen river. Meanwhile, Greg takes on the biggest load of his career and Alex has a plan to one-up his rival Hugh. Will the Polar Bear go down without a fight?
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4 - 1Breaking Through June 06, 2010 -
4 - 2The Polar Bear Returns June 13, 2010 -
4 - 3Facing Down the Blow June 20, 2010 -
4 - 4Monster Storm Over Atigun June 27, 2010 -
4 - 5Trapped On Thin Ice July 11, 2010 -
4 - 6Danger at 55 Below July 18, 2010 -
4 - 7Avalanche! July 25, 2010 -
4 - 8Lisa's Monster Megahaul August 01, 2010 -
4 - 9Blood on the Dalton August 08, 2010 -
4 - 10The Ace vs The Ice August 15, 2010 -
4 - 11A Rookie's Nightmare August 22, 2010 -
4 - 12The Dalton Strikes Back August 29, 2010 -
4 - 13Convoy to Hell September 12, 2010 -
4 - 14A Legend Meets His End September 19, 2010 -
4 - 15Deadly Melt September 26, 2010 -
4 - 16New King of the Dalton October 03, 2010