 Los Angeles, California... 75,000 dead. Houston, Texas... 100,000 dead. Time period... two weeks. Cause... Diabolus... a lethal biological agent. FBI Counterterrorist Agent Kam Saab has been on the hunt for the sadistic group of domestic terrorists responsible since these deadly acts arose. His mission leads him to a new metropolitan centre where he is liaising with Special Agent Serena Keiths, and a strike on her city is imminent unless the terrorist group s demand of one billion dollars is met by noon. As State Director in Charge Angelica Walters expresses, though, "... we do not negotiate with terrorists. Abroad or at home." With over a million lives at stake, Saab must beat the deadline before Diabolus is released.