The 66th episode of Gene Roddenberry’s science fiction series Star Trek airs on NBC. Kathie Browne and Jason Evers (Wrangler, Robot Monster) guest star. 
Stardate 5710.5: When a landing party investigating Scalos begins to vanish one by one, Kirk, Spock and McCoy try to find out what is happening before more of the crew disappears, until Kirk himself is abducted. Kirk finds the cause to be a group of endangered Scalosians who move faster than human sight or hearing can detect. They need to repopulate their species, and find that speeding human males up to Scalosian speed will meet their needs. Kirk must find a way to get a message to Spock and McCoy, who are working on a cure for the mystery “ailment,” as well as stirring up fighting among the Scalosians, before they have control of the Enterprise.
teleplay by Arthur Heinemann
story by Lee Cronin
directed by Jud Taylor
music by Alexander CourageCast: William Shatner (Captain James T. Kirk), Leonard Nimoy (Mr. Spock), DeForest Kelley (Dr. Leonard McCoy), James Doohan (Mr. Scott), George Takei (Lt. Sulu), Nichelle Nichols (Lt. Uhura), Walter Koenig (Chekov), Kathie Browne (Deela), Jason Evers (Rael), Majel Barrett (Nurse Chapel), Erik Holland (Ekor), Geoffrey Binney (Compton)
Notes: In 1960, Jason Evers had been the star – and only regular cast member – of the short-lived, shot-on-videotape western series Wrangler, Gene Roddenberry’s first TV creation to make it past the pilot stage, though Roddenberry would later bury any mention of the show in his work history. A summer replacement series that only got seven episodes on the air in an eight-week span of time, it seems in hindsight that Wrangler may have been something of an embarrassment to Star Trek’s creator.
LogBook entry by Earl Green