Julian Assange is one of the most significant figures of the twenty first century. But before he was famous, before WikiLeaks, before the internet even existed, he was a teenage computer hacker in Melbourne. This is his story. In 1989, known as 'Mendax', Assange and two friends formed a group called the 'International Subversives'. Using early home computers and defining themselves as 'white hat hackers' - those who look but don't steal - they broke into some of the world's most powerful and secretive organisations. They were young, brilliant, and in the eyes of the US Government, a major threat to national security. At the urging of the FBI, the Australian Federal Police set up a special taskforce to catch them. But at a time when most Australian police had never seen a computer, let alone used one, they had to figure out just where to begin. Police ingenuity and old-fashioned detective work are pitted against nimble, highly skilled young men in this new crime frontier. What follows, is a tense and gripping game of cat and mouse through the electronic underground of Melbourne.