Star Trek: A Choice of Catastrophes (Star Trek: The Original Series)

The U.S.S. Enterprise under the command of Lieutenant Hikaru Sulu is returning from a mission to deliver medical supplies to Deep Space Station C-15 one of Starfleets most distant installations. All is routine until the Enterprise comes within a light-year of the planet Mu Arigulon when the ship is suddenly thrown from warp and suffers a momentary power cut having run aground on a spatial distortion not revealed in previous scans of the system. When the pride of Starfleet hits another much worse distortion Dr. Leonard McCoy has his hands full caring for officers who have suddenly fallen into comas for no apparent reason. The Enterprise medical team soon discovers that the dying officers are espershumans with a rare and abnormal level of telepathic and psychic ability. With no choice but to link to the officers minds in order to come to their aid McCoy is plunged into a nightmarish dream-world . . . with the end result being nothing short of the possible destruction of the Enterprise and all aboard her. . . .