The Enterprise receives an old style SOS signal and finds on arrival a planet that is virtually identical to Earth. Kirk, Spock, McCoy and Yeoman Rand beam down to the planet only to find that it is inhabited solely by children. Kirk befriends one of the older children, Miri, but they soon learn that experiments to prolong life killed all of the adults and that the children will also die when they reach puberty. They also learn that the children are in fact, very old. Soon, the landing party contracts the virus and has seven days to find a cure. Written by
Did You Know?
The sphere model used for Miri's homeworld has the same geographical configuration of its continents as modern Earth, only without any clouds. Recycled footage of the Enterprise orbiting "Earth" can be seen in Star Trek: Tomorrow Is Yesterday
(1967) and Star Trek: Assignment: Earth
(1968). In the former episode, clouds were added in post-production, although in some instances, the original "cloudless" model can be seen. In the latter, they simply reused the footage from "Miri" without any clouds. The same Earth globe was also used in Star Trek: Shore Leave
(1966) and Star Trek: Arena
(1967), printed backwards and with exotic colour tints added. See more
Near the end, when Spock and McCoy are debating on how much longer to wait for the Captain before testing the antidote, the scene is cast in a reddish tint. When Spock is walking out of the lab, the red tint abruptly changes to normal lighting. See more
Miri... she really loved you, you know?
I never get involved with older women, Yeoman.
References The Andy Griffith Show
Theme From Star Trek
Written by Alexander Courage See more