Jamie pushes further into new territory, changes rock the company and the entire community says goodbye to a Heavy Rescue legend. Jamie brings back a load from the Yukon. Jamie talks about being prepared for anything and how his amazing fleet of heavy rescue trucks helps him tackle it all. When Kevin announced as a teen that he wanted to be a truck driver, his dad cut him off and hasn't seen him in over 20 years. With his heavy wrecker in for repairs, Howie must use a few small trucks to try and tackle a very, very big job. Howie leads a team on a dangerous recovery that sparks an unexpected emotional reaction. Brandon walked off on the job after the operation took a lot longer than expected, but next morning, he learns the basics of car recovery and towing, but by the fifth attempt at recovering the car, Jamie gave up calling on Brandon and asked Gord to help.
Jordie from Mission Towing faces a semi ready to split in two. Next night, little Jamie Jr. Jamie charts a new course for his business - setting out on a 2,000 km journey. So why not teach people to prepare their souls for heaven rather that focusing on earthly things that will perish and pass away. A half million dollar load becomes a balancing act.
Under pressure to reduce costs and stay competitive, this winter he and his crew are hoping they can tackle some of the toughest jobs using an ageing, rebuilt fleet. Jamie's one bright spot is his brand new truck, the Rotator. In northern Alberta, the Rotator faces its first real test as the crew works to prove they can handle the heavy industrial wrecks and extreme weather. Adam comes close to quitting, but then backs off when Jamie makes him a promise. When traffic starts backing up in high-risk avalanche zones, highway authorities decide to close the road in both directions. But even that lets him down when he's called out to save a trailer stuck in a ditch, and only ends up destroying it after Kevin discovered it was weighed down by boxes of. He considers Jamie to be his adopted father.
When a winter-worn cable snaps, narrowly missing Adams head, Jamie's most senior driver threatens to go on strike. Colin is forced to go it alone after a freak snowstorm leaves the highway littered with crashed vehicles. In Alberta, Colin takes on a hazardous load. And rookie operator, Colin, learns just how tough his new boss Adam can be… when a seemingly simple job goes sideways. Mission Towing has to rescue a dump truck teetering on a slippery slope. All of these earthly possessions are vanity. Colin faces a white-knuckle drive on a remote Alberta back road, and Jamie tests out a new driver, who might be in over his head.
But the new truck is months behind schedule, so Scott has to settle for a worn-out vintage truck. Plow crews are barely able to keep up. That the church has become like any social group that people go, make fun, and make merry. And are just passing by. Dylan goes waist-deep to fish a truck out of a lake. Highway through hell focuses on the fact that we are strangers here on earth.
Scott returns after two weeks of forced vacation, hoping to finally get his new heavy rescue truck. Things for Al Quiring turn red hot when a trailer jammed with thousands of bottles of hot sauce is ripped open. Going to church has become a ritual. Jordie welcomes his brother back to the family business as they tackles a vehicle in a river. Things get more complicated when one of Jamie's new drivers, from the city, learns a close buddy has nearly died in a towing accident during a snowstorm.
In Alberta, tempers flare in the extreme cold as the new crew is put to the test. Scott is forced to get 'inventive' to finish a job. Heavy rescue faces a life and death decision - shut down or leave the Coq for the oil rush boomtown of Fort McMurray and some steady cash. But the busy winter season is here and the custom-built wrecker still hasn't been delivered. In the end of the winter season, Jamie has to be on call to deal with the wrecks alone. A team of avalanche techs flies up the mountain in helicopters to drop concussion bombs and release the build-up, but bad weather hampers their first attempt. In Alberta, Adam calls for reinforcements when he just can't budge a truck that's flipped over a bank - forcing Jamie to make a tough decision about moving his flagship Rotator out of B.
But a long season has everyone's tempers on edge. However, with the cables for flipping the truck snapping, Jamie could get eletrocuted under the live electrical cables. With no fire department to help, Gazzola tries out an old fire truck Davis bought for cheap. A humbling hill and a crumbling fix. Rob's promotion to lead flagger is short-lived when police revoke his license for speeding. When a B-train loaded with lumber drives off a cliff in order to avoid a boulder, Jamie's called in to recover the wreck before it falls down onto an active railroad line.
To make matters worse, Adam and Hugo must team up with Al and his new driver, Gord, to free up traffic after a multi-truck accident blocked the Coq, as well as racing against each other to get the better cut of the earnings. Even with three heavy rescue trucks, Jamie's crew doesn't have enough equipment to do the job right. A 'tow-up' in deep powder turns into big trouble for Colin. A truckload of Christmas mail nearly goes off a cliff. And a cascade of wrecks on two different highways mean both Al Quiring and Adam Gazzola must face their own night from hell.
Jason and Merv tangle with a loaded semi in the snow-filled Valley but later Merv gets to have some fun on the Coquihalla. The only thing that we will take to heaven is our soul. Later, when a heavy SeaCan tips over, Davis and his rotator are pushed to their limit. From massive mudslides, to white-out snowstorms, monsoon rains to dangerous rockslides, the heavy rescue teams will be tested by brutal, relentless conditions and by some of the most spectacular wrecks. They do not take anything serious.