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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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Revision note

Year anchored to Memory Alpha, from 2267.

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