Teenage delinquents who are living in an island youth center wake up to find themselves alone with no one to watch over them. After much partying, they realize the island has been deserted and the adults have been infected by a mysterious epidemic.
A small town infestation of crawling alien foreheads that begin attaching to people and taking them over collides with a scientist's experiments to extract foreheadazine and things go horribly horribly wrong.