Yahoo! Movies! has debuted the teaser trailer from director D.J. Caruso's (Disturbia) I Am Number Four. This new sci-fi thriller finds an earthbound alien disguising himself as a high school student in an attempt to hide from a rival species looking to destroy his race. You can check out the first footage from this intense new movie by clicking the clip below:

Based on I Am Number Four, the first of a six-book science fiction series from writer James Frey, this new franchise is about a group of nine earthbound alien teens who escaped their home planet just before it was destroyed by a hostile species. While the high school-aged kids assimilate, one of them discovers that he is being hunted by the enemy that blew up his planet.