3-21: The Cloud Minders
The Enterprise travels to planet whose affluent lives in a cloud city, isolated from the horrific lifestyle of those below.
3-04: And the Children Shall Lead
The Enterprise rescues a group of children, the only survivors of a Federation outpost, who are being controlled by an alien being.
3-22: The Savage Curtain
Kirk and Spock are forced into combat among some of history's most prominent individuals, including President Lincoln, Surak, and Kahless.