"The Terratin Incident" is the eleventh episode of the first season of the American animated science fiction television series Star Trek.
[2] In this episode, after an apparent attack, the crew of the Enterprise find themselves beginning to shrink in size toward the point that they will no longer be able to control the ship.
While observing a burnt-out supernova, the Federation starship Enterprise picks up a strange message transmitted in a two-hundred-year-old Earth code.
Chief Medical Officer Dr. McCoy determines that the crew will continue to shrink beyond their ability to control the ship unless a cure is found.
Terratin is a lost Earth colony, originally called "Terra Ten"; its inhabitants have mutated because of the supernova's radiation, and are now all approximately one-sixteenth of an inch in height.