A news reporter looks into who has been anonymously leaving large cash gifts on random doorsteps in New York.
A group of humans arrive on Sirius 6-B to investigate an SOS signal sent out from the planet, which has been supposedly deserted since the destruction of the man-made weapons known as "screamers." Once the squad arrives, they find a group of human survivors eking out an existence in an old military outpost.
Luke and Roger are just another couple of college guys trying to lose their virginity. But when Luke sees something unusual, he begins to suspect that the girls on campus aren't exactly...human.
