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Star Trek: The Animated Series

Season 1 Episode 3

One of Our Planets is Missing

Aired Saturday 10:30 AM Sep 22, 1973 on NBC
out of 10
User Rating
58 votes

By TV.com Users

Episode Summary

One of Our Planets is Missing
The crew of the Enterprise races to find a way to stop a cloud from destroying inhabited planets.

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  • The crew of the Enterprise must stop an energy cloud from consuming a populated planet.

    It's a credit to the people involved with this series that they didn't feel the need to change Star Trek simply because they were doing it animated form. Others would have pandered to the younger viewers by having simplified stories with more visual gags and obnoxious sound effects; especially since this might have distracted viewers from limited movement in the animation. "One of Our Planets is Missing", like most of the episodes in this series, is Star Trek down to its core. Something dangerous is discovered, the crew of the Enterprise attempts to learn more about it, and reaching an understanding proves more effective than violence. That proves enough for a 24 minutes of entertainment.moreless
  • One of our Planets is Missing follows a Trek tradition of Enterprise coming into path of super-being-like cloud floating in unknown space. Overall, the episode is thought-provoking by the end credits, but lacks somewhat in visuals and performance.moreless

    One of our Planets is Missing follows a Trek tradition of Enterprise coming into path of super-being-like cloud floating in unknown space. As the crew continues to research and investigate the clouds behaviour, it is established that the cloud feeds upon the energy and matter of full planets in order to survive. In order to save the lives of millions, the crew of the Enterprise must find a way to stop the being from destroying the planet.

    The story that of OPM is an interesting one, mainly because it doesn’t really go anywhere for the first 15 or so minutes and then finally gets to the real point, where finally something relevant is brought up for discussion rather than a bucket full of techno babble. For the most part however, and most importantly, this episode does strike at a very important issue in modern day lifestyles and of course, establishes and develops on a now well-known Trek philosophy.

    Performances are as a whole, average, with nothing neither really standing out nor crossing the line of dull.

    Visually, the episode is bland with a lot of re-used animations from previous episodes and by now I can tell already which ones I’ll probably see in nearly all the episodes to come. The alien-cloud being is decent enough but nothing spectacular, the direction of the Enterprise entering the being could have been done with greater realism however.

    Overall, One of our Planets is Missing is a thought-provoking episode by the end credits, but lacks somewhat in visuals and performance. Plus a well-developed introduction to the issue dealt with in the last third of the episode could have done it a world of good.

  • The Enterprise has to stop an alien cloud from eating a planet populated by millions of people.

    The worst part of this episode is that it is almost dull. There are many times I wasn't even paying attention due to the lack of a good story. It is your basic sci-fi romp, an alien is heading towards Earth, so Spock is needed to communicate with the being before it does something it will unknowingly do. The episode is alright, I suppose, but it is not that exciting. There are some parts that capture interest for a little while, but then it just seems to start dragging again. Overall, it's alright, but definitely not the best in the series.moreless
James Doohan

James Doohan

Governor Robert Wesley

Guest Star

Majel Barrett

Majel Barrett

Cloud Creature

Guest Star

George Takei

George Takei

Lt. Hikaru Sulu

Recurring Role

James Doohan

James Doohan

Lt. Cmdr. Montgomery "Scotty" Scott / Lt. Arex

Recurring Role

Nichelle Nichols

Nichelle Nichols

Lt. Uhura

Recurring Role

Trivia, Notes, Quotes and Allusions


  • TRIVIA (2)

    • Lt. Gabler is seen here for what will be the first of four apperances. However, due to color errors, he appears as Caucasian although all of his subsequent appearances establishes confirm the character is African-American.

    • Trivia: Kirk's reference to having said "I will not kill today" is from the original series episode "A Taste of Armageddon."

  • QUOTES (3)

    • Kirk: Spock, what did you perceive?
      Spock: The wonders of the universe, Captain. Incredible, completely incredible.

    • Kirk: Am I doing the right thing, Bones? Once I said "man rose above primitiveness by vowing 'I will not kill today.'"

    • Spock: The brain could be completely destroyed if we convert the entire ship to energy aimed at the brain's cortex and expend the energy in one mortal strike.
      McCoy: That sounds like you're telling us to blow up the ship.
      Spock: I believe that is what I just said, Doctor.

  • NOTES (5)

    • This episode along with "Mudd's Passion" was released on The Animated Adventures of Gene Roddenberry's Star Trek: Volume 4 for VHS.

    • First speaking appearance of Lt. Arex (James Doohan). He is seen in the background in "Beyond the Farthest Star" but has no dialogue.

    • The shots of colony life come from the animated series Lassie's Rescue Rangers.

    • Marc Daniels directed many original Trek episodes, but this appears to be the only episode of original or animated Trek that he wrote. One of the episodes he directed was "The Doomsday Machine" which also featured a giant planet-killing object.

    • The character of Robert Wesley was previously introduced in the Original Trek episode "The Ultimate Computer," where he was the commodore in charge of the battle exercises. However, actor Barry Russo did not reprise his role for this episode.


    • Title:
      Referencing the 1942 British war film One of Our Planes is Missing, which tells the tale of six British airmen who are shot down in the Nazi-occupied Netherlands and are forced to escape the country with the aid of sympathetic Dutch citizens.