Memory Alpha
Memory Alpha
Real world article
(written from a Production point of view)

The Enterprise crew begins to shrink after radiation exposure.


"Captain's log: Stardate 5577.3. We are approaching the remains of the burned out supernova, Arachna. Requested updated survey will begin with measurements of its radiation and volume expansion."

Spock reports from his station that Arachna has reached its cycle of strongest emissions. Kirk orders "Uhura, inform Starbase 23 we have arrived at the gas cloud and are starting to map." The USS Enterprise receives a garbled message. Uhura reports interference and there is only one comprehensible portion of a signal, which emanates from the star Cepheus, although that particular area has not produced any radio transmissions before. Transmitting in intersat code, a code that has not been used in centuries, is the word 'terratin.'

Kirk has Sulu set course for Cepheus. Upon the Enterprise's arrival and subsequent investigation, the starship encounters a planet of crystalline structure, barraged by volcanic activity. While in orbit, a flash of light passes through the ship, paralyzing the crew. Scotty reports that the dilithium crystals are unpeeling like the rind of an orange and all connections are busted. Kirk asks, "Spock, are you slumping?" The Vulcan replies, "I have never slumped in my life, captain, but I was about to ask you the same…" Kirk interrupts and insists the ship must get away from the planet as fast as possible.

"Captain's log, stardate 5577.5. Our limited power attempt to escape the planet's gravity has failed. Undefined wave bombardment continues resulting in a contraction of our bodies or an expansion of the ship by a factor of 0.3."

Uhura reports, "No reply to our mayday, captain. I don't believe we have enough power to transmit to Starbase 23." Kirk asks McCoy for answers. He shows Kirk that they are indeed degenerating. The space between the molecules of their body is diminishing so they retain their original weight. Spock notes all organic matter on the ship is shrinking.

"Captain's log, stardate 5577.7. We will lose effective control of this vessel at the point when we have become one centimeter tall. At the present rate we will reach this less than fingernail length in 32 minutes."
Hikaru Sulu injured

"I think his leg's broken. We'll need a splint."

Spock calculates that in a matter of minutes the entire crew will stand 1/16 inch high, well past the operative point of ship's controls. By using man-made ladders, the crew manages to get to their consoles and use their collective strength to press the transporter buttons. Kirk orders Scott to set automatic return for him in ten minutes. Kirk then orders Scott that a crew be sent down to the transporter room to beam himself down to the surface. Upon materialization on the surface of the planet, Kirk immediately grows back to full size, since the transporter retained a memory of his body's molecular structure and changed it to previously detailed size and shape.

While on the planet, Kirk encounters a miniature city, but is beamed back to the ship by the transporter's automatic settings. Upon returning, he discovers that his bridge crew has been transported off the ship to the planet's surface. Kirk opens a channel and threatens the city with all the ship's armament locked onto it if his crew is not immediately returned unharmed. The leader, the Mendant, informs Kirk that the lightning attack was the only way he could get the full attention of the starship, and apologizes. He informs Kirk that their city is being threatened by volcanic activity and their adoptive planet is dying.

Spock discovers the Terratin natives to be mutated descendants of a missing early scientific expedition; the survivors named the planet Terra Ten. The crew is transported back to the ship, but since the Terratins cannot be restored to the size of their ancestors, they and their entire city are beamed aboard the Enterprise to be taken to a more stable planet. The leader shows the appreciation of all Terratin inhabitants by naming all the Enterprise crew honorary Terratins now and for all time to come. Spock notes "We came rather close to more than honorary." Kirk says, "Yes, I'd say just about a sixteenth of an inch close."

"Captains log, supplemental. The Lilliputian city is to be taken to Verdanis and relocated on a fertile and well watered plain. Then we'll be able to call the Terratin Incident closed."

Log entries[]

Memorable quotes[]

"Spock – are you slumping?"
"I have never slumped in my life, captain."

- Kirk, noticing that Spock is getting smaller

"Visual sweeps are already impossible, sir. My eyes no longer fit the opticals."
"And I can't reach the dial I turned five minutes ago!"

- Lieutenant Arex and Uhura

"We've got twenty-nine minutes before we're too small to operate ship controls!"

- Kirk

"Spock's theory is right, we're contracting."
"That's why our weight remains the same. Same number of atoms. The effect is just reducing the space between the molecules. It's something I've never seen before."

- Kirk and McCoy

"What is the composition of this decoration?"
"It was an arm bracelet, more like a necklace now."
"Yet the uniform on which you wear it fits as well as ever. Uniform made of algae-based xenylon, I believe."

- Spock and Nurse Chapel

"Scotty, is it you?"
"Aye, captain. For the love of heaven, be careful where you step!"

- Kirk, restored to normal height, finds Scott the size of a dot on the bridge

Background information[]

Story and Script[]

Ghost of Winston

The "ghost" of Carter Winston haunting Uhura

Video and DVD releases[]


The Star Fleet Medical Reference Manual identifies the radiation used for reducing the characters in size as epsilon rays. It explains that this radiation's effects cannot be reversed without the use of such matter-rearrangement processes as matter transporters and that prolonged exposure causes extremely small bodies (which it approximates at 0.16 cm for Humans) to become a genetic trait.

Alan Dean Foster's prose conversion, in Star Trek: Log 4, tells of the planet Verdanis being renamed Verdantin, and ends with Kirk and McCoy discussing the future of the former Terratin inhabitants.

Links and references[]

Starring the voices of[]


Also starring the voices of[]

Guest background characters[]

Background characters[]


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External links[]

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