With Spock stricken down by a fatal disease, the Enterprise must track down the drug that can cure him before it is too late.
EP2 BemSep 14, 1974
The Enterprise crew is joined by a unpredictable alien called Ari bn Bem, an independent observer from the planet Pandro.
EP3 The Practical JokerSep 21, 1974
The computer of the Enterprise gains partial sentience and starts playing practical jokes on the crew.
EP4 AlbatrossSep 28, 1974
Dr. McCoy is arrested and held responsible for causing a plague that ravaged the planet Dramia II, where he performed a mass-innoculation 19 years earlier.
EP5 How Sharper Than a Serpent's ToothOct 05, 1974
The Enterprise runs into a being that once visited Earth and influenced the Mayan culture.
EP6 The Counter-Clock IncidentOct 12, 1974
With Commodore Robert April (the first commander of the Enterprise) on board, Kirk pursues a ship plunging into a supernova, and enters a universe where time runs backwards.