A RACE AGAINST THE CLOCK... The most lethal virus in history has begun its spread to the mainland United States. Fast-spreading and with the ability to take over the host's immune system, the pathogen seems unstoppable. A FIGHT FOR SURVIVAL... Dr. Samantha Bower of the Centers for Disease Control has encountered the virus before and it nearly cost her her life. Now, with the disease spreading among the civilian population at an incredible pace, the...