Return To Tomorrow: Kirk, Spock and Dr. Ann Mulhall allow noncorporeal beings to inhabit their bodies so that these aliens can prepare androids for themselves. But one entity secretly plans to remain in Spock's body.



Patterns Of Force: On a routine check of planet Ekos, nuclear missiles are fired at the U.S.S. Enterprise. Kirk and Spock investigate and find the planet is controlled by latter-day Nazis.