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Star Trek
S1.E27
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IMDbPro

The Alternative Factor

  • Episode aired Mar 30, 1967
  • TV-PG
  • 50m
IMDb RATING
5.7/10
4.3K
YOUR RATING
William Shatner and Robert Brown in Star Trek (1966)
ActionAdventureDramaSci-Fi

Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.

  • Director
    • Gerd Oswald
  • Writers
    • Don Ingalls
    • Gene Roddenberry
  • Stars
    • William Shatner
    • Leonard Nimoy
    • Robert Brown
  • See production info at IMDbPro
  • IMDb RATING
    5.7/10
    4.3K
    YOUR RATING
    • Director
      • Gerd Oswald
    • Writers
      • Don Ingalls
      • Gene Roddenberry
    • Stars
      • William Shatner
      • Leonard Nimoy
      • Robert Brown
    • 58User reviews
    • 13Critic reviews
  • See production info at IMDbPro
  • See production info at IMDbPro
  • Photos37

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    Top cast18

    Edit
    William Shatner
    William Shatner
    • Captain James T. Kirk
    Leonard Nimoy
    Leonard Nimoy
    • Mr. Spock
    Robert Brown
    Robert Brown
    • Lazarus
    DeForest Kelley
    DeForest Kelley
    • Dr. McCoy
    Janet MacLachlan
    Janet MacLachlan
    • Charlene Masters
    Nichelle Nichols
    Nichelle Nichols
    • Uhura
    Richard Derr
    Richard Derr
    • Barstow
    Arch Whiting
    Arch Whiting
    • Assistant Engineer
    Christian Patrick
    • Transporter Chief
    Eddie Paskey
    Eddie Paskey
    • Lesley
    Bill Blackburn
    • Lieutenant Hadley
    • (uncredited)
    Vince Cadiente
    • Security Guard
    • (uncredited)
    Bill Catching
    Bill Catching
    • Anti-Matter Lazarus Being #2
    • (uncredited)
    Frank da Vinci
    • Crewman
    • (uncredited)
    Carey Foster
    Carey Foster
    • Enterprise crewmember
    • (uncredited)
    Tom Lupo
    • Security Guard
    • (uncredited)
    Ron Veto
    • Harrison
    • (uncredited)
    Al Wyatt Sr.
    Al Wyatt Sr.
    • Anti-Matter Lazarus Being #1
    • (uncredited)
    • Director
      • Gerd Oswald
    • Writers
      • Don Ingalls
      • Gene Roddenberry
    • All cast & crew
    • Production, box office & more at IMDbPro

    User reviews58

    5.74.2K
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    Featured reviews

    5Xstal

    The Beard of Lazarus...

    Lazarus has a bubble car time machine, but he doesn't keep track of just where he's been, not sure who he is, but his whiskers have fizz, depending on the version of him being seen.

    Schizophrenic universes that matter and don't come close to colliding and reducing everything to smoke.
    7Aylmer

    Awkward yet riveting hard scifi episode

    I have to be contrarian and admit that I like this episode more than most. It's a refreshing bit of hard science fiction with a wonderful mystery setup. The script hints at the possibility of an invasion from the antimatter universe and/or the destruction of all existence due to the collision of both. The execution, however, leaves much to be desired. This riveting premise unfortunately boils down to several encounters with Lazarus, a young man who keeps habitually falling off cliffs in Vasquez Rocks.

    The plot of this episode feels paper-thin with plenty of holes. If the very fabric of the universe is at stake and only one (mentally unhinged) person has any information about it, why let him roam around freely about a starship? There's plenty of laughs to be had as well, especially Spock's unemotional accusation of Lazarus being a liar right to his face, complete with an embarrassing musical sting.

    It's mostly the incidental music and Robert Brown's over-the-top performance that gives this episode much of its particular charm. It has that Season 1 innocence to it, hinting at a sort of sinister scientific space mystery approach to exploring the Star Trek universe that the show slowly abandoned as it went along. Watch with the un-altered special effects if possible.
    5pkotta

    Only the explanation in the last 5 minutes is interesting, but by then it's too late

    Yes, it's true, this is one of the worst episodes in the entire series, right down there with "The Empath." Yes, Lazarus is one of the most irritating characters, always falling off cliffs to move the story (such as it is) along.

    The *only* thing that's interesting in this episode is when Lazarus finally explains how his cat-and-mouse with his alternate-universe counterpart came about. Both the sci-fi physics element and the madman element of the premise are fascinating. But this explanation comes in the last 5 minutes of the show, after 40 minutes of exhausting shenanigans -- too late to even buy the "r" in the word "redeem."

    I would love to know the backstory about how this episode went from fascinating concept to crummy filmed episode. Perhaps that would help ease the pain that this entry's very existence creates in the beating heart of the series.

    Another interesting bit about this episode is that with it, the series nearly bottoms out before rocketing to the top with the very next episode, "City on the Edge of Forever." From the very bottom, the only way to go is up.
    Blueghost

    A bit of a klunker.

    According to "Star Trek; the Inside Story" by Solow and Justman (the two original producers of the Star Trek series) there were some contractual issues with the actor who was supposed to play the guest lead, and thus this caused some scheduling issues which cascaded into other areas of production.

    Result; this episode.

    Well, what can a guy say about an installment that was supposed to be the crown jewel of Trek, but wound up being a bucket of swill? An "A" for effort... err... maybe.

    Things that I spotted; there's an exterior shot showing Kirk and Spock leading a search team, but the actors are their stunt doubles, and not Shatner and Nimoy. The lead character seems prone to injury, and the science fiction in this episode is more fiction than science.

    I'll say this, the reason I tend to prefer classic 1960's Trek to the TNG+ era, is because the first season of TOS Trek is psychological; the second season is sociological, while the third season is more interpersonal (with all its flaws). This episode really strove to be a true science-fiction story, and not some encoded amalgam conveying a comment on contemporary society.

    No, this episode really wanted to post the question of sacrifice to save two realms of existence. As stated earlier, director Gerd Oswald wanted the son of a famous actor who had star power (the name escapes me). Said actor was drunk and didn't show up for the shoot. SAG threw the book at the actor for breaking his contract, and torpedoing what could've been an interesting, and a true first pure sci-fi masterpiece for this very memorable series.

    But, blaming the guest star for all the foibles isn't fair. Truth is the writing was a little weak in this episode. Without a psychological formula to rely on this episode was truly trying to break new ground. But, because the author(s) did not know enough about the science they were dealing with, and only the philosophical dilemma of what they wanted to pose for the audience, the story falls flat.

    Even so, it's still fun to see our favorites run around on the screen to save the Federation (and everyone else in this case) from a fate worse than death.

    Not a sterling installment. Watch only in passing... if at all.
    6snoozejonc

    But what of Lazarus?

    Enterprise encounters a violent and unusual physical phenomenon.

    This is an interesting episode based on a brilliant idea, but unfortunately the screenplay does not translate to the screen very well.

    The plot must have sounded fantastic when it was first discussed and its introductory scene is very intriguing. Unfortunately it unfolds in a sometimes boring way, with several long winded, repetitive visuals and some big exposition dialogues.

    I love parallel universe stories and the matter v antimatter concept is a great idea, unfortunately what presents on screen makes little sense by the description of it's own technobabble.

    There are also some plot points that are ludicrous. Lazarus is obviously a threat yet has free run of the ship on more than one occasion.

    It's not all bad. Some visuals work well, like Lazarus's spacecraft on the planet surface, along with the cinematography and acting. Also it finishes strongly with Kirk helping to save two universes and leaves on poignant note about the poor guest character.

    William Shatner, Leonard Nimoy and Robert Brown are solid, particularly Brown playing the two versions of the guest character.

    For me it's a 5.5/10, but I round upwards.

    Related interests

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    Sci-Fi

    Storyline

    Edit

    Did you know

    Edit
    • Trivia
      This is the first time that live two-way communication with Starfleet Command is depicted. In previous episodes, communication with Starfleet Command was through delayed radio messages.
    • Goofs
      At the very beginning when Spock is reporting the atmospheric composition of the planet he has scanned he says "Oxygen Hydrogen atmosphere". This would be a very explosive combination. He meant to say "Oxygen Nitrogen atmosphere" (similar to Earth) but just got his line wrong.
    • Quotes

      Spock: I fail to comprehend your indignation, sir. I have simply made the logical deduction that you are a liar.

    • Crazy credits
      The closing credits are set against a combination background of stills from that episode and previous episodes.
    • Alternate versions
      Special Enhanced version Digitally Remastered with new exterior shots and remade opening theme song
    • Connections
      Featured in Mr. Plinkett's Star Trek 2009 Review (2010)
    • Soundtracks
      Theme From Star Trek
      Written by and credited to Alexander Courage

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    Details

    Edit
    • Release date
      • March 30, 1967 (United States)
    • Country of origin
      • United States
    • Official sites
      • handitv
      • Official Facebook
    • Language
      • English
    • Filming locations
      • Vasquez Rocks Natural Area Park - 10700 W. Escondido Canyon Rd., Agua Dulce, California, USA
    • Production companies
      • Desilu Productions
      • Norway Corporation
    • See more company credits at IMDbPro

    Tech specs

    Edit
    • Runtime
      • 50m
    • Color
      • Color
    • Sound mix
      • Mono
    • Aspect ratio
      • 1.33 : 1
      • 4:3

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