Sezon 3
Bölümler
1 Spock's Brain 20 Eyl 1968 
2 The Enterprise Incident 27 Eyl 1968 
3 The Paradise Syndrome 4 Eki 1968 
4 And the Children Shall Lead 11 Eki 1968 
5 Is There in Truth No Beauty? 18 Eki 1968 
6 Spectre of the Gun 25 Eki 1968 
7 Day of the Dove 1 Kas 1968 
8 For the World Is Hollow and I Have Touched the Sky 8 Kas 1968 
9 The Tholian Web 15 Kas 1968 
10 Plato's Stepchildren 22 Kas 1968 
11 Wink of an Eye 29 Kas 1968 
12 The Empath 6 Ara 1968 
13 Elaan of Troyius 20 Ara 1968 
14 Whom Gods Destroy 3 Oca 1969 
15 Let That Be Your Last Battlefield 10 Oca 1969 
16 The Mark of Gideon 17 Oca 1969 
17 That Which Survives 24 Oca 1969 
18 The Lights of Zetar 31 Oca 1969 
19 Requiem for Methuselah 14 Şub 1969 
20 The Way to Eden 21 Şub 1969 
21 The Cloud Minders 28 Şub 1969 
22 The Savage Curtain 7 Mar 1969 
23 All Our Yesterdays 14 Mar 1969 
24 Turnabout Intruder 3 Haz 1969