This season, the balance of power on the winter roads is turned upside down. Reigning champ Polar Industries returns, looking to maintain their dominance by any means necessary. But trucking rival, Darrell Ward, isn't backing down. He wants to turn his upstart company into a force on the winter roads.

The war for ice road supremacy is heating up and Polar Industries is pushing their drivers to the absolute limit. . Art Burke must cross one of the longest winter roads in the world. Polar's top driver, Todd Dewey, is forced to dig himself out of mountains of fresh snow or risk a dangerous night in freezing temperatures. Rival, Darrell Ward, takes a load over a newly opened road littered with abandoned trucks frozen in time.

Polar Industries goes for the record books, sending driver Todd on a risky run to deliver the heaviest haul in company history.

Polar boss Mark Kohaykewych shakes things up when he brings new soldier Mike Simmons into the winter roads battle. But when the rookie's paired with company wildcard Art Burke, it makes for a rocky trip. Top dog Todd Dewey and rival Darrell Ward both hit a newly opened trail, but when Todd breaks down in the middle of nowhere, he might be out of luck and out of time.

New business owners Darrell and Lisa get the jolt they need with a high-stakes mission-transformers desperately needed for a distant town's electrical supply. Polar's top dog Todd Dewey runs into trouble with a government contract. Truck problems have Polar driver Art Burke's season headed for the gutter. And ice road rookie Mike Simmons tries to get over the hump on his first solo delivery.

Darrell Ward and Lisa Kelly try to make good on a power play for their young company but could lose everything when Darrell's truck breaks down. Polar driver Todd Dewey must backtrack hundreds of miles to recover lost freight or risk losing a vital contract.