The Ice Road Truckers battle across the continent over frozen lakes, rivers, and ocean. Alex heads farther north than ever before on the deadly Dempster. Hugh and Rick face an impossible task on the thin ice of Manitoba's Winter Roads. In Alaska, veteran Jack Jessee returns to lead a pack of hungry new drivers on Carlile's biggest mission in history.

Alex drives on the Arctic Ocean, to the northernmost Canadian village accessible by ice road. Hugh and Rick face melting ice in a desperate search for missing trailers. In Alaska, a massive oil rig move continues as Jack struggles to mentor impatient young driver, Austin Wheeler. And, it's judgment day for the Dalton rookies as both Darrell and Porkchop meet with the boss to see if they pass their training runs.

In Alaska, the clock is ticking on the Dalton as the deadline to deliver a massive oil rig pushes every driver to step it up to get the job done. Will the pressure of his first ice crossing cause one rookie to crack? Plus, Alex races to deliver a load to a village across an icy river delta, but a looming storm threatens to trap him just inches above the rushing current. And, Hugh and Rick fight the melting winter roads to deliver their first load of the season to Winnipeg, when a rookie mistake leaves Rick in the line of fire.

A trailer malfunction threatens to strand Jack Jessee in inclement weather; Darrell struggles through a whiteout; and Hugh and Rick are forced to cross untested ice in order to transport water tanks to a remote community.

Austin spends a night in a ditch; Jack is forced to remove two wheels from his trailer; Porkchop is pulled off the road by Lane; and Hugh and Rick brave melting roads with a heavy load of two cement trucks.

Austin is tasked with transporting an entire cabin; Jack struggles to navigate a dangerously slick section of road; Lane teams Porkchop with Darrell; Hugh and Rick get into trouble with the law.

Rick makes an unpleasant discovery about his truck; Alex hauls a dangerously heavy excavator; Lane gets out on the road.

A huge wreck affects Darrell's aspirations to be king of the haul road; Porkchop tangles with precarious sheer cliffs on an access road; Austin joins the heavy-haul team; and Alex faces obstacles on the ice.

Austin's heavy haul through snow leads to a rookie mistake; Darrell is sorely tested by an infamous pass; Porkchop is assigned an unexpected load; Hugh enlists a motley crew to drive across ice; and a one-lane mine road pushes Alex to the limit.

Alex hauls a high-priced load down a dangerous one-lane road; Austin struggles with heavy cargo; Hugh helps a rookie driver who runs into trouble on the ice.

Alex gets caught in a whiteout; frost heaves cause trouble for Darrell; Austin is forced to load oversize cargo by himself.

Rick gets into an accident; Austin struggles to haul 85 foot sections of pipe; Porkchop helps Jack with his delivery; Darrell fights to stay warm after his truck dies on the road.

Jack scrambles to leave town; Alex braves brutal weather conditions to deliver machinery needed to reopen a critical road; Hugh jeopardizes his friendship with Rick.

Alex encounters high winds as he hauls a dangerous load of compressed gases; Austin helps a stuck trucker; and Rick puts his cargo in jeopardy while trying to get payback on Hugh.

Jack and Darrell rush to make a delivery before their road shuts down; Ray is hampered by a breakdown; Alex takes a risk with an extra large trailer; and Hugh and Rick are forced to put their differences aside.

Austin hauls a huge modular building;,Alex runs into trouble while transporting supplies across a section of frozen ocean; and Hugh and Rick get into a heated argument.

Experts predict a small window of opportunity, so truckers must defy the odds to get their loads delivered or risk financial ruin that will also impact their communities.

At Polar, a truck crashes into a snowbank. Legendary Alex Debogorski makes his return by taking on an untested crossing. The Polar boss tests a new driver. Lisa Kelly encounters a monster incline. Two long-time rivals meet deep in the wilderness.

Lisa Kelly becomes stranded hundreds of miles from the nearest town. Darrell Ward takes a risky off-road short cut that's untested by any other truck. Art Burke comes upon a melting ice crossing and a load that's right at the weight limit. 22-year-old Steph Custance learns whether she'll be driving for Polar.

Darrell Ward and Lisa Kelly head into Alberta looking to expand their company, and encounter a trail called "the Death Road"; Art Burke takes on the ice crossing where he nearly lost his life; Polar's top dog Todd Dewey takes rookie Steph Custance under wing, as she embarks on her first ice-roads journey.

22 year old Steph Custance tries to conquer the first ice roads of her career, but an ice crossing pushes her to the limit. As temperatures rise, Alex Debogorski runs into a road block. Art Burke is acting as a diplomat for Polar by delivering to a new remote community. Darrell Ward braves an unregulated winter road.

Darrell Ward faces off with a trail named "The Obstacle Course". Todd Dewey struggles to clear a melting ice bridge. Veteran Alex Debogorski is pushed to his limits hauling an oversized fuel tank and Art Burke finds an ice crossing in the middle of the night.

Polar driver Steph Custance braves one of the longest ice crossings on the winter roads map and to make things worse, she is all alone. Darrell Ward attempts a triple delivery in a single day, meanwhile Lisa Kelly is stopped dead in her tracks by an engine fire. Todd Dewey celebrates his birthday stuck on the edge of a closed road.

Todd must fix his truck or risk being stranded 100 miles form the nearest town. Alex Debogorski has to cross a creek that has thawed in the middle of the road. On an important run for Polar Industries, Art Burke receives some news that could be devastating. Lisa Kelly battles an ice crossing unlike any she has seen before.

As the end of the season nears, Polar Boss Mark Kohaykewych makes a historic deal with Darrell Ward and Lisa Kelly to team up for a four truck convoy over a closed road. Alex Debogorski must complete one of the longest trails in the final hours to make a delivery and Art Burke's truck breakdowns on the ice.