On Manitoba s Winter Roads, Hugh Rowland and Rick Yemm s season is already on the brink of disaster. But Rick makes a deadly discovery about his truck that puts the rest of his season, and his life, in jeopardy. On the Dempster, Alex risks his life by taking on the challenge of hauling an excavator that s over the safe weight limit of the ice. But on the shifting ice of the Mackenzie River delta, Alex is in a no-win situation when a truck malfunction leaves his trailer in danger of jackknifing, while stopping to fix the problem means falling through the ice. On the Dalton, haul road ace Jack Jessee is missing in action. Darrell, Porkchop, and Austin hammer down to take the lead int he load count. But when Terminal Manager Lane Keator hits the road, drivers will be forced to answer to the boss.

On the Dalton, Austin s trying to prove himself in a heavy haul convoy, but pushing the 100-ton modular building through blowing snow leads to a rookie mistake that threatens the entire mission. Word of Jack Jessee s return gets Darrell Ward on the road early, but the Montana log hauler s quest to become the new haul road ace is derailed by notorious Atigun Pass. Porkchop s been struggling with a series of deliveries off the Dalton, but at dispatch he gets an unexpected load. With Rick still out of commission, Hugh makes a "Hail Mary" play to save his season by drafting a ragtag team of drivers into a convoy across the ice; it s a high risk gamble that puts his life in the hands of an ice road rookie. Alex is dispatched with a time sensitive load bound for a remote mining operation, but the sheer cliffs and soft shoulders of the one lane mine road push the veteran and his truck to the limit.