What started out as a normal day for the town which goes from good to bad in only a couple of hours, as a disease start to affect the children but the parents do not notices. But the children still has to go to school even tough they old their parents that they don't feel well. Within hours, over half of Park View High school students are getting children clamming to be sick. Then they get worse as they start to vomit blood, get high fevers, bloody nose, confusion, fatigue and more. Soon, the teacher and students will be trapped in side the school. Some infected and some who aren't. It's up to them to survive a whole week without getting sick and can't attempt to leave the school. Anyone who does will be shot by the military.