All 52 episodes from the second season of the long-running children's sci-fi drama. Set in Australia in the near future, where a deadly virus has wiped out most of the world's adult population, leaving the youth of the planet to start over amid the anarchy and confusion. In this series, the Mall Rats have to return to the city in order to find the antitdote to the virus, but when the Chosen reappear, the tribal leaders are faced with a terrible choice.