Continuing their trek north into the remote McKinley River Basin, Butch and Bill look to extend their lead as the five teams traverse narrow mining trails, sheer ridges, and rapid glacier rivers. Rich and Carl decide to follow Pete and Shey’s example, hoping “slow and steady” will prevent any further damage to Super Jeep. Jason and Glen are determined to beat War Wagon and come in first no matter what the cost while Brent is forced to take the wheel after Scott is sidelined by an injury.