Thirst

Thirst (2016) is a action, thriller, science fiction directed by Greg Kiefer rated 4.9/10.

A group of wayward teens at a wilderness boot camp must fight for their lives against the attacks of a ruthless blood-sucking alien. The attacks begin after they discover a strange "orb" in the middle of the desert. With no communication, and nowhere to hide, they realize their only chance for survival is to fight.