So basically, there are these kids who are at this boarding school for troubled kids and one day everyone over the age of 18 disappears. It's like there is a bubble over the school, so no one can get through the bubble either way. Included in this bubble is the main school, the dormitories and the gardens/sports fields. But, how will these kids survive when everyone starts to turn on each other? And why do weird things keep happening? What is really going on?