A virus that has been spreading around , no one is safe and no one trusted. With the determination to eliminate this virus, Danny and his brother Brian, his girlfriend and classmate Bobby Kate must move from southwestern United States to the safe place. In this 4-day trip, they have witnessed the infected children, homicidal doctors, ferocious dogs ... they face with the terrifying decision and found out the most dangerous enemy can not be viruses and it is evil nature exists in everyone. And they had the most terrible choice.