Star Trek
S03E18 The Lights of Zetar
Mysterious, intangible extraterrestrials pose a danger to both the Memory Alpha station and the Enterprise.
Season 3 Episodes
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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24
Spock's Brain
The Enterprise Incident
The Paradise Syndrome
And the Children Shall Lead
Is There in Truth No Beauty?
Spectre of the Gun
Day of the Dove
For the World Is Hollow and I Have Touched the Sky
The Tholian Web
Plato's Stepchildren
Wink of an Eye
The Empath
Elaan of Troyius
Whom Gods Destroy
Let That Be Your Last Battlefield
The Mark of Gideon
That Which Survives
The Lights of Zetar
Requiem for Methuselah
The Way to Eden
The Cloud Minders
The Savage Curtain
All Our Yesterdays
Turnabout Intruder