Star Trek: The Animated Series: Season 1, Episode 11

The Terratin Incident (17 Nov. 1973)

TV Episode  |  TV-Y7  |   |  Animation, Action, Adventure
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Ratings: 6.8/10 from 149 users  
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While on a mapping mission, the Enterprise receives an outdated transmission from the volcanic star Cepheus. A flash of light from the planet passes through the ship and disables all ... See full summary »



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Title: The Terratin Incident (17 Nov 1973)

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Episode cast overview:
Capt. Kirk (voice)
Mr. Spock (voice)
Dr. McCoy (voice)
Sulu (voice)
Uhura (voice)


While on a mapping mission, the Enterprise receives an outdated transmission from the volcanic star Cepheus. A flash of light from the planet passes through the ship and disables all dilithium crystals. Soon thereafter, the crew begins to shrink. With no cure in sight, it becomes increasingly difficult for the Starfleet officers to handle the ship's controls. Written by The TV Archaeologist

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23rd century | See All (1) »



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Release Date:

17 November 1973 (USA)  »

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| (technicolor)
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Did You Know?


This takes place in 2269. See more »


A normal sized human has about the same density as water which is why normal sized humans are are neutrally buoyant in water (more or less). Having shrunk when Nurse Chapel falls into the aquarium she is seen sinking like a stone. This is correct because her size is smaller but her mass has not changed. This would mean she is now much more dense than she had been. She would not have been able to swim back to the surface of the water to call for help. She would have drowned before anyone could have helped her. The water would not have changed density because water is not organic. See more »


Captain James T. Kirk: Spock, who are the Terratins, where did they come from?
Mr. Spock: [on viewscreen from Terratin] Descendents of an early lost colony, which is why they retain some knowledge of starship methods, such as transporter mechanisms. These Earth colonists named and numbered this planet Terra Ten, hence the present corruption of their name.
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References The Incredible Shrinking Man (1957) See more »

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User Reviews

Shrinkie dinks
9 April 2015 | by (Bradenton, Florida) – See all my reviews

The Enterprise nears a planet that appears dead. Somehow the gravity is such that the ship cannot escape--and that sucks because the crew start shrinking! After a while, they realize that unless they can stop it soon, they'll be too small to control the ship! Fortunately, a transporter mission to the planet helps Kirk get to the bottom on all this and learn HOW and WHY they began to shrink.

As I always say about these cartoons, the animation is pure crap. The normal cell count of a good classic cartoon is about 20 frames per second. Here, however, only tiny portions of the cel (such as lips or an arm) move slightly--and with perhaps 5 or less cels per second. In addition, apart from some nice backgrounds, the animation is ugly as well--as if drawn by lemurs. However, despite all these complaints, the plot is reasonably engaging and the show not totally bad.

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