No Lord of the Flies here. Alien based fog takes over most of the world below a certain elevation. Most camp counselors leave to contact others down the mountain and don't return. Remaining counselor vegges out. One of the younger kids does what's needed and ends up in charge of the mountain and has to deal with bad bikers, a farm woman and her kids and some trapped army types.  I would recommend this to anyone 12 and up and think it would make a great movie.