Stan has the dangerous task of building an ice road across the Yukon River. Joe & Bob take their chances to embark on a perilous caribou hunt. Charlie confronts Nations about his trapline neglect. Pat & Courtney are faced with an alarming discovery.

The pressure is on Nations, when the Moores head out for the first major dog sled race of the season. Stan faces a hard decision when one of his dogs falls ill. Charlie has had enough once he sees the state of the trapline he handed over to Nations.

Stan and Pat race to prepare Tanana to be a checkpoint for the Iditarod dog sled race. Charlie and Bob hunt a grizzly that has been terrorizing a miner's camp. Joe trains his new dog, hoping to turn him into a hunting partner.