When a terrorist attack hits Sydney releasing a highly contagious virus into the population, Detective Leyla Nassar must race across the city and find the culprits while the Deputy Premier Pamela Laird battles power hungry politicians eager to use the catastrophe for their own nefarious means.
A catastrophic train derailment sends the city spiraling into chaos. But the derailment is just the beginning. A biological gas attack sees crash survivors collapsing and dying within minutes. And the sickness is rapidly spreading.
