Yogi risks a showdown with the law as he heads into South Australia. And, Steve is under pressure with a truck down and a run to a place he's never been to.

This vast island continent is home to some of the hardest places to reach on Earth. But for the mega trucks that keep the country moving, getting there is just another day at the office.

Steve Grahame battles wild animals and deep sand as he takes on the Great Central Road for the first time since the Wet.

Truck drivers Ash Bryant and Darryl Armfield are on a time critical job shifting 200 cattle over 500 kilometres of bush roads - but have they driven straight into trouble?

Mason Pakai leads a million-dollar convoy through Cape York chaos, Liam O'Connor gambles millions on rookie drivers, and Rex Ryles battles the outback to honour a promise to his hometown.

Dirt road veteran Dennis Dent goes head to head with a lifelong nemesis. Christian Reynolds takes on wild country on a vital mission to build a bridge and Turbo is dealing with disaster upon disaster.

Steve Grahame rolls the dice on a brutal desert run, Jim Foody races monsoon rains to the top of Australia, and Yogi risks a million-dollar payload across the Nullarbor.

Turbo's on a mission and the warpath, taking the biggest gamble of his career. Steve Grahame battles 2000kms of dirt, damage and dramas and at the wheel of a monster load Glen Waters faces disaster.

Boe Vella takes on fire and flood in the Top End, Steve Grahame’s hot shot run to Broome begins to unravel and Mark Pett’s short cut becomes a nightmare of diesel and dust.

History threatens to repeat itself as Steve Grahame and convoy partner Sy Howells battle the roads and the weather to reach a remote community before the wet season leaves them stranded.

Anthony and Danyelle Haigh, tackle a dangerous river crossing, Slick risks a mammoth desert run as he races home for Christmas and rookie trucker, Kylie Hornick, faces a life or death decision.

Ross Carrigy is returning from the remote north Queensland community of Kowanyama at the start of the wet season.

Jim Foody fights bushfires and breakdowns, Tim Alt hauls 21 million bees through treacherous ranges, and Hibbo battles brutal outback roads with a triple load.

Mike Elliott races the rising floodwaters, Jim Foody battles busted roads and breakdowns, and the Haighs haul heavy loads through the heart of the Outback.

Steve Grahame faces a major detour that could wipe out his profits, Luke Gilroy transports a 200-tonne transformer vital for Queensland's power grid, and Jack Macrae attempts to deliver a dream home.

Steve Grahame is racing to beat a border shutdown, Ricki Sutcliffe's timber delivery deadline grinds to a halt and Jacob Marshall dices with bush fires to deliver hay to desperate farmers

Husband and wife trucking team Nick and Jo Atkins are about to embark on a dangerous trek north through one of the world's last wilderness frontiers.

Cyclonic weather threatens to stop tanker driver Mick King delivering hazardous chemicals to a desert mine site. Tasmanian trucker Lindsay transports 80,000 angry bees to a rainforest.

Gordo and Shui face exhaustion and a cyclone on a turnaround trip. Mark, Clare and dog Roy drive toward Adelaide. Steve can't budge in a driving rain.

Car wreckers Mike and Bozza tackle the sand dunes of Northwest Australia for a big payday and long-haul truckers, Mish and Drew, go swimming as wet season flooding swamps Australia’s Top End.

Anthony and Danyelle Haigh enlist a new team member, Slick's race home for Christmas is slipping out of reach and cattle trucker Kylie Hornick has her first crack at driving a triple road train.

Yogi prepares for a showdown with transport police in South Australia. Nick and Jo take on one of their toughest jobs yet on one of Australia's worst roads.

Hauling a volatile load, larger than life tanker driver Sludge dodges disaster. Steve Grahame heads into unknown territory with busted equipment and Macka McCready sails into wild weather.

Steve Grahame hits the mud with a broken down body and Sludge's mountain mission takes a downhill slide.

The Mackay Brothers hit the bush and try to dodge destruction while Steve Grahame takes on an old enemy at the worst possible time of the year.

Matt Adams rides a volatile load of bulls into a world of trouble. Yogi tests his truck and his patience to the limit and the Stephens Brothers battle the backwoods to rescue millions of angry bees.

Steve travels a long stretch of bad road to deliver pricey cargo. Danny drives his mega-hauler overnight to move one of the world's biggest trucks.

While Steve risks everything to keep his rig going on an epic trek, ex-model Deb and driving partner Damo must deal with a mid-trip change of plans.

Steve Grahame races against time in the central desert under financial strain, Robbie transports a huge house amidst a tropical storm & Wendy, takes over Sludge following his motorcycle accident.

Trucker and rancher Dougal must haul cattle to a faraway market to avoid ruin. Meanwhile Steve's rig is stuck a short distance from his destination.

Mick King fights off deadly bushfires to deliver to a fire ravaged community, an oversized load drives Athol Martin over the edge. Sludge hauls 3 high value vintage racers to a burn up in the desert.

Turbo is up for any trucking challenge, but waiting for pay from his last job means this hard driving, hard talking trucker is stuck 4300kms from home.

In the Northern Territory the wet season's about to break and veteran road train trucker Mark Pett is hauling 78 tonnes of cement and steel straight into a disaster zone.

Fourth generation loggers the Bennet Brothers, Adrian and Neil battle an inferno that's destroying hectares of Tasmania's bushland, threatening their business and lives.

In the season finale, Mike & Vinnie confront unexpected challenges near Halls Creek, Yogi battles treacherous conditions on his way to Perth & The Mackay & Sons team haul a multimillion-dollar yacht.

Wide loads & narrow bridges push Brian Andersson to the edge, Sharon Collins risks a croc infested river & Robbie Mackay's team of outback house movers bend steel trying to exit the yard.

Sludge races to beat a cyclone. After Australia's worst bushfires on record Army trucker Matt is on a mercy mission and for Mike Partridge getting 8 vintage tractors 4000 kilometres is a nightmare.

Outback legend Steve Grahame is hauling 3 million worth of power equipment, Danny Watts has a massive dump truck for a mine site, and later, Bluzey and Noelene get ready for a 3 day run into the bush.

It's trial by fire for Russell McDonough hauling a mobile building, down a load-destroying track. The Mackay brothers, race daylight and deadlines, moving a house down the highway.

Mark Cromwell and the electricity switch room convoy run into freak weather and unexpected roadblocks. Turbo goes head-to-head with an angry customer and an angry road.

After a heartfelt memorial for his late father, Yogi embarks on a 5 day journey across Australia, Mel Michelsen tackles a tight deadline, & Mike & Vinnie continue their journey toward Hall's Creek.

Nick and Jo can't catch a break with break downs and melt downs in the remote Kimberley.

Sludge takes on foreign roads and strange loads in the land of the kiwi. Turbo's new truck gets busted and bashed, on a tour of destruction.

Country boy Anthony and city wife Danyelle battle bogs and blocked bores to bring water to desperate cattle stations.

Steve Grahame gets a double dose of bad on a brutal lap through the red centre. Desert trucker Barnesy heads way off the grid on a desperate rescue mission.

With permit deadlines fast approaching Robbie Mackay’s house movers strike the wrong kind of oil. And in the South Australian desert, Karen Ellis struggles to get cankerous camels to the vet.

Flooding and corrugated roads throw Mark Cromwell and his team off road as they race to deliver a mammoth switch room into the desert.

The Mackay's monster house moving convoy irritates drivers as they race to make curfew.

Russell Crusher hopes to test out his new $200,000 metal muncher at Uluru, but truck troubles pull him up. And Kelly Habel rushes to get 40 tonnes of grapes to the winery.

Mark Cromwell brings a city to a standstill taking a $2 million delivery into the heart of Saturday night.

Scrapper Russell McDonough is duelling with the desert and battling breakdowns and logging trucker Bob Fraser tackles a mountain of timber.

Johnny and Graeme face a critical oil leak during the Finke Desert Race, Jeff Fulwood undertakes a mercy mission to Nhulunbuy and the Pukai brothers haul a heavy load over the Great Dividing Range.

Outback veteran Dennis, battles to stay ahead of a tropical storm. Turbo pushes the pain barrier trying to keep his business on track. And heavy hauler Mark, stakes his name on the job of his career.

Brutal weather and bending roads give Tasmanian trucker Jeff Elliot a run for his money.

Outback trucking legend Steve Grahame and his faithful canine companion Bella take a monster load cross-country from the red centre to the west coast. Engine issues see Russell struggle to hit a delivery deadline.

Tasmanian trucker, Ricky Sutcliffe, lays his life on the line driving into a inferno, rescuing bull dozer drivers trapped as they cut firebreaks in the blazing Huon Valley.

Steve Grahame battles desert breakdowns, Mike Elliott bets big on a busted road, and Sludge fights for a second chance behind the wheel.

Brother and sister team Robbie and Ashleigh hit house removal hell on a mud-bogged mission out of Brisbane. Nick and Jo battle storms in remote Western Australia.

Mark Cromwell is under heavyweight pressure chasing the clock on a $2 million mega-move and cattle trucker Belinda Riehl is moving more than she bargained for.

Kurt Shephard loses his way hauling a hut across Australia. Johnny Dowell drags a stack of steel and a dust cloud up a horror desert track.

Jim Foody transports critical medical supplies through flood-ravaged roads, Jake Pakai hauls expensive equipment across narrow highways and Robbie Mackay faces a tight curfew in a double house move.

Jack Macrae manoeuvres a massive house through extreme conditions, Mike Elliot battles scorching heat in Western Australia, & Joel and Terry Snell navigate a high-stakes delivery across the continent.

All hell breaks loose for Turbo as his freight and his truck take a hiding, and Greg and Sonya Wise are under the weather and under pressure.

There's trouble in the wind for Kurt Sheppard who is struggling with a load causing oversized problems. Bumper Farrell is on a mercy dash, leading a hay convoy into the eye of the storm.

There are headaches on the horizon for Steve Grahame taking on the Tanami with a trailer load of trouble and it's a wild ride for Nigel Vagg hauling 900 feral goats through a heatwave.

Extreme weather and crumbling infrastructure make a short journey across a remote Pacific island one of Mark Cromwell's most challenging jobs ever.

In Central Australia, Brad Duckworth's run of bad luck threatens to put the brakes on the construction of an outback airstrip.

Steve Grahame navigates flooded highways and washouts in a marathon 6000 km drive. And, a Perth heavy haulage crew moves a huge pedestrian bridge.

In the Australian Outback when the going gets tough the tough drive trucks. Outback truckers drive the biggest trucks on Earth along the toughest roads and loneliest highways.

Mike and Vinnie dodge disaster, the Deen brothers wrestle a monster load through the mountains, and Luke Majoor takes a high-stakes gamble on a legendary track.

Mark Cromwell and a team of heavyweight champions drag a million dollar shed through the eye of a needle. Fuel trucker Sludge has pressure problems blowing his cool.

Woody's urgent food delivery to a remote desert community is jeopardised by a leaking fridge unit. Tasmanian logging contractors the Bennett Brothers tackle forest tracks to move a huge tree winch.

Sludge tries to keep a truck-full of flammable liquid from ruin and mobile butcher Larry Brewer is on a mission.

It's a white knuckle ride for Sludge climbing a mountain with an angry load. Cameron Smith carts a colossal dump truck out of the Nullarbor - and straight into harms way.

Torrential rain plays havoc with Robbie Mackay's efforts to relocate a home without wrecking it. Graham faces storms and grass fires moving a section of railway 5,000 kilometres in just five days.

Owner operator Justin Harrison's on an epic haul up through the red heart of Australia.