Kerry Chang, Bruce Norris and Kyle Blueman are on a mission in Hong Kong to befriend Clyde Xu, a teenage environmentalist who has been recruited by Help Earth to assassinate an oil executive.

Meanwhile, Dana and another young Survivor, Eve Stannis, are recruited to aid Barry and his fellow Help Earth operative Nina Richards in a terrorist attack on a LNG terminal.

However, Barry kills the ASIS agents following them and reveals that the facility to be attacked is not in Australia as originally assumed, but instead in Indonesia.

With Help Earth's attack imminent, the Australian military prepares to storm the Ark, and James and Lauren attempt to retrieve Susie's data before the assault.

When the order comes for the Survivors to fall back into the Ark's fortified church, Rat suggests escaping through a sewage tank.

Lauren refuses to leave without taking the children with them, and the group manages to escape the Ark before it is destroyed when explosives laid by the Survivors are accidentally detonated.