After a virus of epic proportions overwhelms the planet--with increased infected compared to uninfected--humankind is losing its grasp on survival and its only hope is finding a cure and keeping the comprised. Lauren, a doctor, arrives in Los Angeles with her crack team to lead the hunt for civilian survivors that are uncontaminated, where everything is known as a trap, but nothing can prepare them for its mayhem as they venture in the Californian roads they witness.