Something inside her broke apart, leaving an intense sensation of emptiness. It was like he'd taken a huge chunk of her heart with him and he was only her brother. Madison Brown, 20 and Gemma Thomas, 17, are complete opposites in almost every way but have a unique bond tying them together. When Gemma lands a job in Brisbane, she sweet-talks Maddie into driving with her across Australia. To save money, they camp along the way. Gemma's impulsive behaviour leads them into some awkward predicaments as they drive through the outback from Perth. Their friendship becomes fractured as Maddie tries to extricate them from difficult and life-threatening situations.