Michael Portillo continues to trace the route of one of the world's greatest rail journeys — the legendary Ghan Railway. Before boarding the luxurious, modern transcontinental at Alice Springs, Michael meets orphaned joeys Tilly and Max at Brolga's Kangaroo Sanctuary, where he helps at feeding time. Close by, at Bond Springs Cattle Station, Michael discovers the rags to riches story of the early 20th century Cattle King, Sidney Kidman, and meets the family who today run one of his former ranches. Fellow passengers aboard the Ghan take Michael by surprise on his journey between Alice Springs and Katherine, where he alights to explore the traditional lands of aboriginal groups along the exquisite Katherine Gorge. Arriving in Darwin, capital of the tropical Northern Territory, on the eve of ANZAC day, Michael joins Australians to mark the anniversary of the First World War battle that defined their nation