A group of survivors, originally trapped together in a superstore by a series of escalating disasters, has split in two -- one group heading to Denver airport on a repaired school bus, the other remaining in the Sanctuary trying to rebuild the community they lost. But the world outside is dark and filled with dangerous chemicals that turn people into bloodthirsty monsters.
Six high school kids, two eighth-graders, and six little kids trapped together in a chain superstore build a refuge for themselves inside. Outside, a series of escalating disasters, beginning with a montster hailstorm and ending with a chemcial weapons spill, seem to be tearing the world -- as they know it -- apart.
Trapped inside a chain superstore by an apocalyptic sequence of natural and human disasters, six high school kids from various popular and unpopular social groups struggle for survival while protecting a group of younger children.
The survivors of the Monument 14 have finally made it to the safety of a Canadian refugee camp, but Josie, separated from the group and trapped in a brutal prison camp for exposed Type Os, may lose hope unless her lost love Niko and his companions Astrid, Dean and Jake can rescue her.