Star Trek (1966–1969)
24 user 7 critic

This Side of Paradise 

The Enterprise investigates a planet whose colonists should be dead, but are not.


Ralph Senensky


D.C. Fontana (teleplay by), Jerry Sohl (story by) (as Nathan Butler) | 2 more credits »

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Episode complete credited cast:
William Shatner ... Capt. Kirk
Leonard Nimoy ... Mr. Spock
Jill Ireland ... Leila Kalomi
Frank Overton ... Elias Sandoval
DeForest Kelley ... Dr. McCoy
Grant Woods ... Kelowitz
George Takei ... Sulu
Nichelle Nichols ... Uhura
Michael Barrier Michael Barrier ... DeSalle
Dick Scotter Dick Scotter ... Painter
Eddie Paskey ... Crewman


The Enterprise is ordered to clean up the aftermath of a doomed colony on Omicron Ceti III, a planet under constant irradiation from deadly Berthold Rays. Upon arrival, however, the colonists aren't only alive but in perfect health, with no desire to leave their new world. They are in fact under the influence of plant spores which not only keep them in good and improved health but simultaneously keep them in a placid state of happiness and contentment. Mr Spock reacquaints with Leila Kalomi, an old friend who had been (and still is) in love with him. She leads Spock into being affected by the spores, and he is thereafter, for the first time, able to express love for her in return. Eventually the entire ship's crew is affected, leaving Kirk alone to wonder how he can possibly rescue them from perpetual bliss. Written by Clive Wilson

Plot Summary | Plot Synopsis


TV-PG | See all certifications »


Official Sites:

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Release Date:

2 March 1967 (USA) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.33 : 1
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Did You Know?


The large open meadow seen in several sequences is in Malibu State Park in southern California. It is the same spot where the hunt in the corn field took place in Planet of the Apes (1968), and also extensively used in Gunsmoke (1955). See more »


At the end (in the re-mastered version), as the Enterprise leaves orbit, the view screen shows the planet from the rear of the ship, between the engine nacelles. In that view, the planet is lighted from the left of the ship, but in the last shot, as the credits appear, the planet is lighted from the right. This would indicate that the ship had reversed 180 degrees and flown past the planet again. See more »


Dr. McCoy: Who wants to counteract paradise, Jim-boy?
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Alternate Versions

Special Enhanced version Digitally Remastered with new exterior shots and remade opening theme song See more »


Referenced in Free Enterprise (1998) See more »


Star Trek Theme
Written by Alexander Courage
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User Reviews

Paradise Flower Seed Style
6 January 2017 | by Rainey-DawnSee all my reviews

Season 1, episode 24. The Enterprise is under orders to head to Omicron Ceti III and remove the colonist from there due to the Berthold rays, a lethal form of radiation. Kirk, Spock, McCoy, Sulu and a small party beam down to the planet only to find everyone on the planet very much alive, happy and in complete health. The odd part is, there are no other signs of life other than the people. Spock runs into Leila Kalomi, a woman he once knew while on Earth. Leila is very much in love with Mr. Spock but Spock being half Vulcan (and embrasures it) represses all emotions and does not return the love in a way Leila has been wanting for so long. She brings him to a meadow of strange flowers and Spock is sprayed by the spores. The spores leave Spock acting strange, other crew members will encounter the flowers and beam them up to the ship to spread the spores. The only Kirk is not effected by the spores - but why?

A very fun episode - one I can never forget. I have not forgotten seeing Spock smiling, laughing and hanging upside down from a tree... had me laughing as a kid and still brings a smile to my face.


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