Fair rating?Star Trek· Season 2 · Episode 18
The Immunity Syndrome
Spock senses the crew of Intrepid, a starship crewed solely by Vulcans, die. Enterprise investigates, and discovers a zone of darkness which conceals the hazard: an immense yet single-celled organism which drains energy from anything it encounters, as it did the Intrepid and her crew. And unless they can discover how to destroy it, Enterprise will be next. Worse, there are signs the organism has accumulated sufficient energy to reproduce...
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#8In Season 2of 26 rated episodes
#13All-timeof 79 rated episodes
+0.3vs season avgSeason 2 averages 7.9
1968First airedJanuary 19, 1968
Guest stars
James Doohanas Lt. Cmdr. Montgomery "Scotty" Scott
Nichelle Nicholsas Lt. Nyota Uhura
Walter Koenigas Ensign Pavel Chekov
Majel Barrett Roddenberryas Nurse Christine Chapel
John Winstonas Lt. KyleCrew
Joseph PevneyDirectorRobert SabaroffWriter
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