In a wild frontier world of blistering heat and vast distances, an army of workers toil day and night to keep the nation's lifeblood flowing... with a little help from some of the biggest and most powerful trains in the world. Australian rail operators are world leaders in heavy haul rail freight, moving some of the longest and heaviest freight trains in the world.

Season 2 heads deeper into the lives of the drivers, crews, and maintenance teams on some of the world's heaviest and longest trains across the toughest and most inhospitable continent on the planet.