The end of the line is here. The Polar drivers face the long, difficult journey back down the world's longest seasonal winter road. Lisa has to make a game-changing decision...help a competitor push further into the arctic unknown or stick with her teammates and convoy back to Polar headquarters. Her decision could be costly as conditions quickly deteriorate.

It's the second week of the ice road season and the brutal temperatures of -40 degrees are already taking their toll on the truckers.

In one of the coldest frontiers on earth, road construction crews begin the process of creating the most unique passage in the world---a 350-mile highway of ice.

The rivalry heats up between Ice Road Truckers veteran Hugh Rowland and his employee Rick Yemm as they compete for the highest load count.

Ice Road Truckers venture 200 miles north of the Arctic Circle, transporting 10,000 loads of vital materials, over a highway made entirely of ice onto the Arctic Ocean.

Jay Westgard embarks on a trip to the De Beers mine with the heaviest and most valuable piece of equipment this season.

The Ice Road Truckers race for the last of the cash as they travel across thinning ice.

A volatile season is winding down and it seems like trouble comes in doubles. Lisa Kelly and Steph Custance barely get by when they team up for safe passage on the icy terrain. Art Burke takes on a two-fer, bringing a split load into the North Country, hoping this will be his last load of the year. And Polar owner Mark Kohaykewych gives Todd Dewey a job that might just be impossible: hauling a double oversized camp shack up the twisty, narrow road to the village of Big Trout. Can it be done? Todd doesn't think so!

It's the 18th day of the ice road season and truckers have delivered more than 3000 loads to the diamond mines, but they still have 7000 more to go. The temperatures are dropping, the loads are getting heavier and the ice is just three feet thick.

Hugh "the Polar Bear" Rowland returns to Alaska at last and has to face down his haul road nemesis: chaining up. Meanwhile, failing trailer brakes and trash talk over the CB threaten to derail Lisa's comeback.

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.

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

Darrell continues teaching Reno how to drive the ice roads, but Dad's overprotective ways may be too much; Art gets some royal help on a trip far north; faulty wiring could sink Alex's cement load; Lisa and Todd hit a road block in their race to keep Polar in the load count competition.

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.

The spring thaw is in full melt mode as the drivers get one last lick before the ice roads close for the season. Steph Custance is the first to experience nature's wrath as she slips and slides deep into the trees off a slick road. Meanwhile Todd Dewey is struggling with a big load of construction material over a long and twisty trail. Art Burke is not a happy camper when he is pressed into service to retrieve a super heavy bulldozer over a rapidly melting ice crossing. Reno Ward takes a risky final run just to have his truck die on the ice. And Lisa Kelly is heading home when she gets an emergency call to come to the rescue before it's too late.

It's half way through the grueling ice road season. Six hundred truckers have ferried more than 4,000 loads to the northern mines. They still have 6,000 left to go, but everyday roadblocks threaten their progress.

After several impressive runs this season, Lisa takes on a big haul of high explosives. Meanwhile, harsh icy conditions southbound on Atigun Pass cause Jack to spin out for the first time this season.

As the "Dash for the Cash" comes down to the wire, legendary driver George Spears calls it a career, Lisa makes a harrowing 300-mile run with no brakes, and polar bears shut down the Ice Road.

Lisa tackles the most dangerous haul of the season, trucking a multi-million dollar, 100-ton load across the entire state of Alaska. Meanwhile, Alex races to keep pace and Ray faces the worst night of his career when a spin-out at Ice Cut sends him over the edge.

Harsh winter weather has left Lisa stranded in Prudhoe Bay. Dave is in a convoy with Maya and Tony, he tests their patience before leaving them behind. In Canada, Rick's frustration reaches a boiling point and he snaps, while Hugh rescue's Rick's truck, again.

The season end is approaching and so is the load count in the Dash for the Cash. Hugh and Rick has trouble in Canada, will Alex take over the lead? Maya the Dalton-rookie convoys with Lisa to the remote and isolated Nuiqsut village. Tony deals with deteriorating road conditions and Dave leaves Alaska for Alabama.

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.

In the Season 9 premiere, Darrell Ward attempts to poach a legendary rival driver from Polar Industries, which could spark an all-out war.

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.

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.