The true story behind the Gallipoli letter written in September 1915 by Rupert Murdoch’s father, Keith Murdoch, at the time a young Australian journalist. According to journalistic legend, Keith Murdoch’s letter toppled a general, shook a government and ended the bloodbath that was Gallipoli, one of the most brutal calamities of the First World War. But, as we find out in this investigative documentary, the truth behind the events of 100 years ago, is far more complex.