Alex heads far north on the Dempster; Hugh and Rick face an impossible task in Manitoba; Jack returns to lead new drivers on Carlile’s biggest mission in history.
Alex drives on the Arctic Ocean; Hugh and Rick face melting ice; Jack and Austin move a massive oil rig; Darrell and Porkchop meet with the boss.
The clock is ticking on the Dalton, forcing a rookie to crack; Alex faces a looming storm; Hugh and Rick fight melting roads delivering a load to Winnipes.
A storm hits the Haul Road; Jesse is stranded; Darrell pushes through a whiteout; Porkchop answers to the boss; Austin may shut down the roads; Hugh and Rick travel to remote St. Theresa Point.
The Dalton shuts down; Darrell has a wreck; Jack scrambles for info; Lane pulls Porkchop off the road; Alex races a storm near Yukon; Hugh and Rick double down with cement trucks.
Austin pulls an entire cabin; Jack battles traffic on the Dalton; Porkchop and Darrell team up; Alex races up the Dempster; Hugh and Rick’s haul goes awry en route to Red Sucker Lake.
Hugh and Rick’s season is on the brink of disaster; Alex risks his life on Mackenzie River; Jack is missing in action; Darrell, Porkchop and Austin try to take the lead; Lane hits the road.
Everyone guns to be the new ace; Darrell has a massive wreck; Porkchop faces steep cliffs in remote Alaska; Austin’s chance at glory is at risk; Alex faces the Dempster in reverse.
Austin makes a rookie mistake; Jack and Darrell battle on the roads; Porkchop gets an unexpected load; Hugh makes a “Hail Mary” play to save the season; Alex is pushed to the limit.
Alex takes a $1 million load; Jack pulls a veteran move on Darrell; Austin has his first solo heav load of the season; Porkchop takes dangerous risks; Hugh leads a rag tag convoy.
Hurricane Alley strands Alex and his convoy; Darrell raises the stakes in his rivalry with Darrell; Porkchop tries to climb Atigun pass, but his oversized cargo may prove to be too much.
Rick puts his and Hugh’s season in jeopardy; Austin faces his biggest challenge; Porkchop and Jack struggle to make a special delivery off Dalton; Darrell fights to stay warm.
Alex and Jack flee extreme temperature and brutal conditions; Austin makes a time-saving decision; Darrell rolls the dice; Hugh’s friendship with Rick is put to the test; Porkchop has his final trial.
Alex faces explosive consequences; Jack and Darrell vie for the top spot; Austin puts his life on the line; Porkchop faces the music; Lane makes a close call; Hugh and Vlad try to save the day.
Jack and Darrell make a final run to Nuisquit; Austin pushes his truck too far; Ray tries to prove his worth; Alex takes a gamble in hurricane alley; Hugh and Rick try to work together.