William Thornhill, a Thames bargeman, is deported to the New South Wales colony in what would become Australia. In this new world of convicts and charlatans, Thornhill tries to pull his family into a position of power and comfort. When he rounds a bend in the Hawkesbury River and sees a gentle slope of land, he becomes determined to make the place his own. But, as uninhabited as the island appears, Australia is full of native people, and they do not take kindly to Thornhill's theft of their home.