Max never had the chance to say goodbye, he did have the chance to scream. Violently taken from his wife and his world, Max is thrown into a nightmare of fear, agony, and experimentation at the hands of other worldly creatures stalking the night skies. Twenty years later, four friends have gathered at an isolated Ozarks ranch to celebrate an upcoming birth. Their joy is shattered when the frail and unconscious body of Max falls from an ominous darkening sky kicking loose a roller coaster of violence and horror. Through one seemingly endless night the friends find themselves surrounded, and at the mercy of nameless, unseen creatures. Desperation makes for difficult choices and even more difficult actions as two men learn just who they must be to fight the killers behind the darkness.
