As a deadly virus breaks out in New York City, infecting half the population, turning them into emotionless, thoughtless ravishing killers, Ellie, a 16 year old girl is forced out of her home along with her family. While trying to flee the chaos, Ellie's family is lost and she and many others are left alone abandoned on the infected island, in complete isolation. Ellie has lost hope, until she is taken in by a family and what is left of the un-infected population is forced to move underground. The human race struggle to survive a dark, cold and harsh life, with limited resources and no connection to the world above. After 2 years of being barricaded under the city, Ellie decides it is time to re-visit the world above, the world of the living dead, not knowing what she will find, not knowing if she ever will, or wants to return.