Swarm intelligence, observed in ant colonies and beehives, was found in its most dangerous form at the microbial level and it was this collective intelligence that brought on the apocalypse.
Only ten people made it out of the Mclean High School Refugee Center alive. They enjoy their celebrity status until they discover they have been infected with the same parasites that reanimate the dead. Soon they find themselves on the run, hunted by the very institution that saved them from the apocalypse. They continue to fight external forces while struggling against the commands from the parasites in their brains: Scratch. Bite. Kill. Repeat.