They drive the biggest trucks on earth along the toughest roads and loneliest highways in the world. They are Australia's Outback Truckers, men and women in monster rigs, on marathon runs, through some of the most inhospitable terrain on the planet. Out here only one thing matters, getting there and back alive!

In the wilds of North Western Australia veteran truckie, Steve Grahame, is in the middle of an epic journey, trying to deliver essential supplies to a remote community, but the weather and roads are conspiring against him, ex-model turned truckie, Deb Drew, is into the fourth day of a 7000 kilometre trek from Melbourne to Darwin and back