Griff tumbles through the sky and into this episode in an historic Tiger Moth biplane - he's preparing to hit the rails North to South, travelling on the iconic Ghan from the humid tropics of Darwin down to the dusty red Alice Springs.

Water guides his way, both in the landscape and in his water bottle. Before jumping on the train Griff meets a crocodile, an iconic news editor and a beast of a road train.

On the Spirit of the Outback, travelling to Queensland's west, Griff seeks to uncover what makes "the good life": from the glitz and glamour of the Gold Coast to the dreams of the Australian Outback, revered by bush poets and pioneers across history.

Journeying from Brisbane to Cairns aboard the Spirit of Queensland, Griff tries desperately to dodge all the things trying to kill him in the country's deep north: from jellyfish, to dingoes, to whitewater rapids and more… there are some BIG things to be seen along the way.

Continuing his journey across Australia on the Indian Pacific, Griff visits Adelaide, Broken Hill and finally Sydney to discover the unique and diverse definitions of what makes Australia.

Griff journeys from Perth to Kalgoorlie on board the Indian Pacific, discovering Western Australia's riches, and understanding perhaps most curiously… what is a sandgroper?