Hugh and Rick roll deeper into the Canadian outback, while a dangerous overflow may leave Alex stranded in the wilderness. Dave's training run with Tony reaches the boiling point. Lisa Kelly goes on a rescue mission. And Maya's first look at the Haul Road may be enough to send this rookie back to the big city.

Hugh and Rick are hauling the biggest load ever to travel up the Canadian ice roads! The record breaking journey spans three days and right out of the gate, Rick's amateur antics cause problems for the Convoy, which puts Hugh in the hot seat. Also in Canada, Alex has challenges of his own fighting a massive oil leak over the unforgiving Canadian Ice Road that's as hard on the driver, as it is the truck. A breakdown on this Canadian bush road means a night spent in the truck in -20 below zero temperatures. Back in Alaska, two Dalton newcomers are finally heading up the highway. Maya Seiber spent three years as a trucker in New York, but Alaska's a long way from Manhattan and the Dalton has some surprises in store for this rookie. Meanwhile, Dave Redmon is finally alone in the truck for his haul to Prudhoe, but after his big blowout with Tony, the Carlile bosses are keeping a close eye to see if he has what it takes to join their elite team of truckers.