Over half a century Rupert Murdoch's business audacity and political shrewdness built one of the world's most powerful media empires. Now his dynasty is under threat -- not from outside competition but from shocking accounts of bribery, blackmail and invasion of privacy. The scandal has prompted criminal investigations on both sides of the Atlantic. It has also cracked open the insular world of the Murdoch family, its news executives, and the political elite who court their favor. Today, the 80-year-old owner of the Wall Street Journal and FOX News Channel is in the fight of his life. In a joint production with the CBC, FRONTLINE correspondent Lowell Bergman tells the story of the battle over the future of News Corporation, Rupert Murdoch's reputation and his family's fortunes.