From nowhere hurtled that black death car. And from nowhere came its grislyoccupants. They were not of the earth, for their human flesh was immune tobullets. They were not of the grave, for they manned the wheel and a blastingmachine gun... Secret Agent "X" made a desperate maneuver to block theirinvasion of the land of the living. And in that weird terror trap, he came faceto face with a man he knew — a man he knew had died five yearsago.