Season 3 sees a new location for the drivers to carry their important and heavy loads to, Alaska's North Slope, from Fairbanks to Deadhorse, carrying supplies to oil camps and introduce four new truck drivers joining two veterans.
As the lone female trucker, Lisa feels she is under pressure to perform better than anyone else; another rookie finds his confidence shaken after experiencing mechanical problems; and Jack copes with the dangers of handling 130-foot long pipe.
The truckers are already behind on their deliveries to the oil fields, and now must face a snow storm. Hugh and Alex will drive with a safety instructor with them during their initial runs. Jack has a decision to make when he comes along a trucker who needs assistance, but that would mean he'd lose his own load. Lisa requests a harder assignment.
The ice road is threatened when an fierce storm arrives and hampers the truckers movement. Meanwhile, Jack Jesse tries to get his truck ahead of the upcoming storm; while George, Tim and Lisa head for shelter at a truck stop. Afterward, Hugh and Alex start on their second run, and Lisa carries her first wide-load and finds trouble trucking around Atigun Pass.
A foot of snow has fallen and Lisa and Jack are determined not to waste any time and head out on the roads ahead of the snowplows. The snowy conditions cause a collision, and a tow truck is used to pull a truck cab and trailer back on a road, but gently so that a spark doesn't cause an explosion. Meanwhile, Jack has a confrontation with a 1,100 pound moose.
Lisa wants to join the heavy haulers and sets out to prove she can do it as good as the men!
A nasty storm seems to be gathering force, but Tim Freeman and George Spears decide to head out into it anyways. Lisa Kelly finds her progress halted when the road heading north is closed. Hugh Rowland and Phil Kromm find some caribou barbecue by heading south. Lastly, Lisa finally makes her way to Prudhoe Bay, Alaska, and reunites with her husband.
Unpredictable weather, slippery conditions and the risk of avalanches make Atigun Pass more dangerous than ever.
As the end of the ice road season comes soon, the push for delivery supplies is great. Lisa learns some new driving skills from Jack Jesse as they convoy together. Tim and George are delayed in Fairbanks when George's truck get's repaired, and later, Tim's truck dies of an electrical failure, forcing Tim to drive alone.
Season 3 closes with the truckers all feeling the pressure to deliver their loads to the oil fields. Hugh almost looses control and spins out near Atigun Pass, while Lisa does spin out and must return down the hill and begin again. Alex makes his delivery to Deadhorse and takes a back haul assignment, but the load nearly falls off due to not being strapped down tightly.
There's just two weeks remaining in the ice season and the truckers are encountering all sorts of problems, including mechanical problems. A volcanic eruption has shut down fuel refineries, and Deadhorse is short on diesel fuel for their generators. Jack decides to deliver to the diesel refineries and nearly has a collision. Lisa gives help to a stranded airline passenger and then has a major breakdown.
Lisa must take on a van of high explosives due to an air leak in Lisa's trailer in Fairbanks. Elsewhere, Jack spins out at Antigun Pass; George believes Tim is ready for solo runs; Alex heads north with Ron, whose truck breaks down and are forced to wait overnight for a new part; and Hugh meets some acquaintances at a coffee shop.
Season 3 ends with the final 72 hours of the ice season being chronicled. George decides to retire; Lisa runs for over 300 miles without any brakes; the rivalry between Alex and Hugh heats up; and Jack Jesse's process is impeded by polar bears on the road.