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» » Star Trek Yesteryear (1973–1975)

Short summary

Upon his return from a journey through the Guardian of Forever Kirk realizes that history has been altered and no one remembers Spock. An Andorian is now his First Officer and it appears that Spock met an untimely death during a childhood ritual on Vulcan. Spock must use the Guardian again and return to the Vulcan of his youth and restore his time line.

The sehlat, the saber toothed bear-like creature that is Spock's pet, was first mentioned in Raumschiff Enterprise: Journey to Babel (1967). In that episode, Dr. McCoy asked Spock's mother, Amanda, what Spock was like as a child and she mentioned the pet.

When this series premiered, George Takei was running for Los Angeles city council at the time. His opponents protested that airing any episode with Takei would violate the equal time law which states that political opponents must have equal time on television. So although it is the second episode, in Los Angeles, this episode was aired first, before Die Enterprise: Beyond the Farthest Star (1973), because Takei does not appear in it.

Although Gene Roddenberry declared the animated series to be "non-canonical," many of the details of Vulcan's appearance and culture would be adapted into later Vulcan-centric episodes of Star Trek: Enterprise (2001) and other Trek productions.

Writer D.C. Fontana based the personality of Spock's pet sehlat on her pet cat named Bobby McGee.

Godzilla's roar from Godzilla - Das Original (1954) is used for the le-matya.

James Doohan recorded the lines for Sarek but they were not used when it was found Mark Lenard was available to do the lines.

This takes place in 2269 and 2237.

The view of Spock's hometown, Shi'Kar, in this episode has been added to the background in the remastered version of the original series episode "Amok Time".

Spock faces off with school bullying which was later used as a plot with the reboot series Star Trek (2009) film. Although Spock assumes the identity as Selek when going through the Guardian of Forever, he is seen with his younger version of himself as a child - foreshadowing the Star Trek (2009) film where Ambassador Spock (Spock Prime) ends up in the mid-23rd Century (in the film a supernova destroys Romulus in the 24th Century a few years after the events of Star Trek Nemesis when Spock was the ambassador to Romulus as depicted in Reunification Pts. I and II) and faces off with his younger self - this time as becoming a first officer on the Enterprise. The sequel Into Darkness has a scene similar in plot to Yesteryear where Spock (as acting Captain of the Enterprise) contacts New Vulcan where Ambassador Spock/Spock Prime reveals the plot of events which took place during Star Trek II: The Wrath of Khan.

Spock's bullying at the hands of other Vulcan children had been previously described by Amanda in Journey to Babel (1967), also written by D. C. Fontana. It would later be reprised in live action form in Star Trek (2009).

At 14:20, a creature is heard in the desert of Vulcan. Someone reused a classic Godzilla roar.

D.C. Fontana included the death of Spock's pet as way of helping children deal with the death of their pets. NBC wanted the pet's death removed from the script but Fontana refused and Gene Roddenberry supported her.

User reviews


  • comment
    • Author: Ber
    I am not huge fan of the Star Trek: Animated Series, but i loved this episode.

    It has a Guardian of Forever, Spock traveling through time to save himself, his "large teddy bear with six-inch fangs" pet, that is a reference from the Original Series, and lots of Vulcan logic :)

    You can also see Spock getting emotional as a kid, fighting with other kids, and being a child of two worlds. Realising of this is critical for understanding of this versatile character.

    So, this is a pleasant episode to watch.

    I rate this episode 9/10.
  • comment
    • Author: Moonworm
    The twenty-two animated episodes of Star Trek aired on NBC across 1973-74 tend to be overlooked these days. It isn't hard to understand how that might be given the bias against animation to simply "be for kids" that it is still struggling with even today. Yet Star Trek: The Animated Series featured not only the original series cast reprising their roles but also saw writers from the original series (as well as others such as Larry Niven) returning to pen new tales for the Enterprise crew. One of the most intriguing episodes to come out of this brief run was Yesteryear, a story that took the show's most iconic character back to his earliest days.

    Yesteryear opens with the familiar pair of Kirk and Spock returning through the Guardian Of Forever from observing the birth of the Orion civilization. They are met by a group of Starfleet historians and an Andorian in Starfleet uniform whom everyone present (including Dr. McCoy) swears is the first officer of the Enterprise instead of Spock. In this new timeline, Spock died at the age of seven during the Vulcan Kahs-wan ritual whereas he had been saved originally by an adult relative. Realizing that the relative must have been himself, Spock travels through the gateway into Vulcan's past to try and save his younger self without contaminating the timeline any further.

    Though never quite satisfactorily explained in the episode how the situation was created by Spock being in the past while the historians were using the gateway, the episode nonetheless remains intriguing. Though Spock's past had been hinted at in the original series, most especially in episodes like Journey To Babel (written by this episode's writer Dorothy C. Fontana) and Amok Time, it was in the animated series that fans finally got to see Vulcan properly nearly a decade before Star Trek III did it on the big screen. We see cities and beasts only hinted at in those episodes including Spock's childhood pet that becomes a key plot point here. Not only that but fans got a look at life and culture on Vulcan in general but especially through the eyes of a youth who stands out from those his age because of his heritage. This is a prime example of what the animated Trek, not bound quite so much by budgets to create its visuals, could accomplish.

    What's even more surprising, for an episode of a series that was seen at aimed for children, is how it dealt with Spock's youth. Spock is tormented by others his age over his heritage, which causes the young boy much anguish and which Leonard Nimoy's voice acting brings across quite well as he watches events he lived through. We see young Spock struggle not only with this mixed heritage but also with the results of his actions as he tries to live up to the expectations laid upon him by his father (voiced once again by Mark Lenard) including making a surprisingly mature decision late in the episode. For a early-mid 1970s Saturday morning cartoon its surprisingly good stuff.

    That being said, the episode suffers from many of the same issues that the animated series on the whole dealt with. The animation is vaguely defined at times showing the limitations of Filmmation's budgets as things often fall into shadows or (as the case during some of the scenes in the desert) playing them in silhouette. While the voice acting from original series cast members is good with Nimoy in particular being a standout, the younger members of the cast never come across as well with Billy Simpson never quite managing to sound convincingly like he isn't reading off a page in his reading of the young Spock, his interactions with Nimoy do work for the most part.

    Despite these flaws, Yesteryear represents something of a high point for the animated series. It presents, in a mere 22 minutes a time travel story that allows for the exploration of the early days of one of Trek's most iconic characters with depth rarely expected from a series that was seen as predominately aimed at children. The fact that its influence can be felt in Trek right up to the present day is a testament to its success as well and how animated Trek should not be so easily dismissed.
  • comment
    • Author: Steamy Ibis
    When Spock and Kirk return through a time portal like the one in "The City on the Edge of Tomorrow," that many consider the best episode of the original series. When they appear, the only one who knows Spock is Kirk. When he gets to the ship, an Andorean has his job. Spock must go back in time and meet himself as a child. Something must have happened when he was a boy with a Vulcan father (Sarek) and a human mother. He must find out what the variable is and change it before he returns. This is a really good episode. I'm not nearly as caught up in the animations shortcomings because the story is engaging.
  • comment
    • Author: Punind
    In "Yesteryear", after a visit to the Guardian of Forever to study the past, the crew of the Enterprise no longer recognize Spock as their First Officer. He is instead replaced by an Andorian. Something in the timeline has changed; in this sequence of events, Spock dies in a child on Vulcan.

    Spock remembers a stranger saving him from a Le-matya as a youth and realizes he must go back in time and be the person that saves his younger self. Spock goes back and visits his home world, interacting with his father, mother, and younger self. The emotional younger Spock runs off into the desert to prove himself.

    This is where Spock has to intervene to save his life. Spock's pet sehlat is killed in the melee and the younger version of Spock learns a valuable lesson of life & death and what it means to be a Vulcan.

    Spock returns to the Enterprise where everyone once again recognizes the Vulcan.

    Last time the Enterprise visited the Guardian, Kirk was so freaked out that he never wanted to come back again. Yet here we are using it for scientific research in this episode. I understand why the writers did it though. It's a cool concept and an easy way to incorporate time travel without having to set up your own device in anyway.

    The lack of quality in the animation is still an issue for this episode (and all of them) but the quality of the plot and ideas make up for this in some capacity. I enjoy getting more of Spock's backstory in anyway that I can, even via cheap animation.
  • comment
    • Author: Marr
    Plot; Kirk and Spock return from a research project via the Guardian of Forever only to find that the present has been altered. Spock is now dead, and the only way to set things right is for him to travel back in time and save his younger self.

    Written by Star Trek vet D.C. Fontana, this is a thoughtful, mature story that feels very kindred to its live action incarnation. Some of the time traveling science is a bit wonky, but that's usually the case with such stories.

    I've watched a selection of ST:TAS over the last few months, and I've come away impressed each time by its refusal to dumb down the stories to fit the format.

    • The Guardian of Forever is the entity/time portal featured in the classic TOS episode "City on the Edge of Forever".


    • Actor Mark Lenard returned here to voice Spock's Father, Sarek.


    • There's a scene here that is very similar to one in JJ Abrams' 2009 Star Trek film, with a young Spock being bullied by classmates.


    - According to Wikipedia, this was the first episode of ST:TAS aired in the Los Angeles market, even though it was intended to be the second episode. That's because actor George Takei, who plays Sulu, was running for public office at the time. Instead of giving his opponents "equal time" on the airwaves, they instead aired an episode that didn't feature the Sulu character.
  • comment
    • Author: Urtte
    I have only watched a couple of the animated "Star Trek" shows so far. Despite overwhelmingly positive reviews, the shows are incredibly poorly animated. Fortunately, "Yesteryear" has enough going for it that it still makes it worth seeing despite the really crappy animation.

    When the episode begins, Kirk and a landing party are revisiting the same planet from the episode "City on the Edge of Forever" (the Edith Keeler episode). The fact that they are there is a bit confusing since at the end of this live action show, Kirk is very clear that he never wants to come there again--and he said something along the lines of "Let's get the hell out of here". Despite this inconsistency, the rest of the show is actually quite good and it goes places the old show probably couldn't go.

    After going on a brief journey through the time portal, the party returns and no one recognizes Spock! How could this be?! Well, it turned out that Spock died when he was 11--or at least that will be the case unless Spock uses the portal and goes back to prevent his own death.

    This episode is nice because you get to hear Mark Lenard as Surak-- and there are several nods to another episodes--including "Journey to Babel". His wife, however, is not voiced by Jane Wyatt but Majel Barrett. Overall, this show is definitely oriented towards kids but the show had some nice lessons, some nice nods to previous shows and fits pretty nicely into the Trek canon. I would give this one a higher score had the animators not been lemurs!! Looks like crap but is worth seeing.
  • Episode cast overview:
    William Shatner William Shatner - Capt. Kirk (voice)
    Leonard Nimoy Leonard Nimoy - Mr. Spock (voice)
    DeForest Kelley DeForest Kelley - Dr. McCoy (voice)
    George Takei George Takei - Sulu (voice) (credit only)
    Nichelle Nichols Nichelle Nichols - Uhura (voice) (credit only)
    Majel Barrett Majel Barrett - Amanda Grayson / Grey (voice)
    James Doohan James Doohan - Scott / Guardian of Forever / Aleek-Om / Bates / Lt. Erikson / Commander Thelin / Vulcan healer (voice)
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