As Riley contracts a devastating necrotic disease that turns the infected into zombies, he enters a race against time in an attempt to locate the source of the infection before he succumbs to it, all while the disease spreads like wildfire across the city.
When Samantha has a one night stand with a stranger and contracts a strange virus, she soon dies. Now, Riley, the most recent carrier, is searching for a cure before the virus consumes him and maybe the entire world.