A pandemic has taken over the world, and caused complete chaos. Hundreds of people have left the cities, and suburban areas to live in little camp settlements - each of which are run by separate rebel leaders. The rebels are fighting against the government, because they are taking away everyone over the age of 60 to put them into internment camps and kill them, to prevent the further spread of the virus. Cellie, a foolish suburban girl, ends up in one of these camps, completely unprepared for what life throws at her.