TOS The Original Series· S02E18
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.
Synopsis adapted from TVmaze (CC BY-SA 4.0)
- Type
- Episode
- Era
- 23rd century – Kirk era
- In-universe year
- 2268
- Stardate
- 4307.1-4309.4
- Release date
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Release order
TOSA Piece of the Action #47 of 966 TOSA Private Little WarChronological order
TOSObsession #218 of 966 TOSA Piece of the ActionRevision note
Year anchored to Memory Alpha, from 2267.