In this sci-fi chiller, a young woman's peace is shattered when she begins hearing loud screams in her head. They are the agonized wailings of an astronaut deliberately marooned upon the moon by a double-crossing experimenter. Soon the woman becomes possessed by the astronaut.
Thomas and Jack are surprised to see Nikki back at The Lyell, the disappearance of her friend Sally forces her to face her back after her harrowing experience in Mexico.