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{{real world}}
 
{{real world}}
{{sidebar episode
+
{{sidebar episode/temp
|<!-- See [[Memory Alpha:Episode data project]] -->
+
|<!-- See [[Memory Alpha:Projects/Episode data project]] -->
| aSelf = The Alternative Factor
+
|title = The Alternative Factor
| sTitle = The Alternative Factor
+
|series = TOS
| sSeries = TOS
+
|season = 1
| nSeason = 1
+
|episode = 20
| nEpisode = 20
+
|production = 6149-20
  +
|release year = 1967
|sProductionSerialNumber = 6149-20
 
  +
|release month = March
| nAirdateYear = 1967
 
  +
|release day = 30
| sAirdateMonth = March
 
  +
|image = Alternative warp.jpg
| nAirdateDay = 30
 
| sImage = Alternative warp.jpg
+
|writer = [[Don Ingalls]]
| wsWrittenBy = [[Don Ingalls]]
+
|director = [[Gerd Oswald]]
 
|date = 3087.6 ([[2267]])
| wsTeleplayBy =
 
  +
|<!-- Navigation -->
| wsStoryBy =
 
  +
|produced = 21
| wsDirectedBy = [[Gerd Oswald]]
 
  +
|released = 27
| nNthProducedInSeries = 21
 
| nNthReleasedInSeries = 27
+
|all released = 27
 
|produced prev = Arena (episode)
| nNthReleasedInAll = 27
 
 
|released prev = Errand of Mercy (episode)
| bFeatureLength = 0
 
  +
|all released prev = Errand of Mercy (episode)
| nSerialAirdate = 19670330
 
  +
|timeline prev =
| wsDate = 3087.6 ([[2267]])
 
| aNextReleasedInAll = The City on the Edge of Forever (episode)
+
|produced next = Tomorrow is Yesterday (episode)
| aPrevReleasedInAll = Errand of Mercy (episode)
+
|released next = The City on the Edge of Forever (episode)
| aNextReleasedInSeries = The City on the Edge of Forever (episode)
+
|all released next = The City on the Edge of Forever (episode)
  +
|timeline next =
| aPrevReleasedInSeries = Errand of Mercy (episode)
 
  +
|<!-- Remastered -->
| aNextProducedInSeries = Tomorrow is Yesterday (episode)
 
  +
|re-release year = 2007
| aPrevProducedInSeries = Arena (episode)
 
  +
|re-release month = December
|aNextInUniverseTimeline = Tomorrow is Yesterday (episode)
 
  +
|re-release day = 1
|aPrevInUniverseTimeline = Arena (episode)
 
  +
|re-released = 49
| nNthReleasedInSeries_Remastered = 49
 
  +
|re-released prev = The Deadly Years (episode)
| nAirdateYear_Remastered = 2007
 
 
|re-released next = The Return of the Archons (episode)
| sAirdateMonth_Remastered = December
 
| nAirdateDay_Remastered = 1
 
| aNextReleasedInSeries_Remastered = The Return of the Archons (episode)
 
| aPrevReleasedInSeries_Remastered = The Deadly Years (episode)
 
| nSerialAirdate_Remastered = 20071201
 
 
}}
 
}}
 
Investigating the cause of a massive, galaxy-wide disruption in space, the ''Enterprise'' finds a mad scientist who claims he is being pursued by a hideous being.
 
Investigating the cause of a massive, galaxy-wide disruption in space, the ''Enterprise'' finds a mad scientist who claims he is being pursued by a hideous being.
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===Act One===
 
===Act One===
[[Beam]]ing down, {{dis|Captain|rank}} [[James T. Kirk|Kirk]], [[Spock]], and the [[landing party]] encounter a man. "''You came! Thank the [[heaven]]s, it's not too late!''", he exclaims. Dirty and disheveled, he falls from a rock. The landing party returns to the ''Enterprise'' with him, where Kirk learns more news &ndash; the strange phenomenon drained the [[dilithium]] crystals almost completely. Still worse, [[Starfleet Command]] issues a [[Code Factor 1]] message &ndash; invasion status. The effect experienced by the ''Enterprise'' was also experienced everywhere in [[Milky Way Galaxy|the galaxy]], and far beyond. Starfleet withdraws all nearby ships &ndash; [[Commodore]] {{dis|Barstow|Commodore}} informs Kirk that the ''Enterprise'' is the bait.
+
[[Beam]]ing down, {{Captain}} [[James T. Kirk|Kirk]], [[Spock]], and the [[landing party]] encounter a man. "''You came! Thank the [[heaven]]s, it's not too late!''", he exclaims. Dirty and disheveled, he falls from a rock. The landing party returns to the ''Enterprise'' with him, where Kirk learns more news &ndash; the strange phenomenon drained the [[dilithium]] crystals almost completely. Still worse, [[Starfleet Command]] issues a [[Code Factor 1]] message &ndash; invasion status. The effect experienced by the ''Enterprise'' was also experienced everywhere in [[Milky Way Galaxy|the galaxy]], and far beyond. Starfleet withdraws all nearby ships &ndash; [[Commodore]] {{dis|Barstow|Commodore}} informs Kirk that the ''Enterprise'' is the bait.
   
In his [[quarters]], Kirk talks to his "guest" &ndash; a man named [[Lazarus]], who is pursuing a "thing," a monster who destroyed his entire civilization. He informs Kirk that he will stop at nothing to destroy it. Beaming back down to the planet, Kirk learns from Spock that there is no other creature here. Spock, accusing Lazarus of lying, states "''I fail to comprehend your indignation, sir. I have simply made the logical deduction that you are a liar.''" Kirk demands the truth &ndash; and the universe turns inside out once again. The same "winking" phenomenon occurs again. And Lazarus&hellip; first he has a bandaged forehead, and then he doesn't, and then he does again.
+
In his [[quarters]], Kirk talks to his "guest" &ndash; a man named [[Lazarus]], who is pursuing a "thing," a monster who destroyed his entire civilization. He informs Kirk that he will stop at nothing to destroy it. Beaming back down to the planet, Kirk learns from Spock that there is no other creature here. Spock, accusing Lazarus of lying, states "''I fail to comprehend your indignation, sir. I have simply made the logical deduction that you are a liar.''" Kirk demands the truth &ndash; and the universe turns inside out once again. The same "winking" phenomenon occurs again. And Lazarus &ndash; first he has a bandaged forehead, and then he doesn't, and then he does again.
   
 
===Act Two===
 
===Act Two===
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===Act Three===
 
===Act Three===
In the [[briefing room]], Kirk confronts Lazarus, but he denies it, blaming his monster. And the evidence suggests he isn't the thief, for the crystals are not aboard his ship. In Sick Bay, Kirk confronts Lazarus with his lies, and learns that Lazarus distorted a fact: he is a [[time travel]]er. The dead world the ''Enterprise'' orbits is the distant future of his destroyed homeworld; the place and time he has traveled to in pursuit of the monster. At Dr. McCoy's urging, the crew departs Sick Bay to allow Lazarus to rest and recover from his fall.
+
In the [[briefing room]], Kirk confronts Lazarus, but he denies it, blaming his monster. And the evidence suggests he isn't the thief, for the crystals are not aboard his ship. In Sick Bay, Kirk confronts Lazarus with his lies, which Lazarus explains away by claiming that he is a [[time travel]]er. The dead world the ''Enterprise'' orbits is the distant future of his destroyed homeworld; the place and time he has traveled to in pursuit of the monster. At Dr. McCoy's urging, the crew departs Sick Bay to allow Lazarus to rest and recover from his fall.
   
 
Having relocated to the briefing room to consider all of the known evidence, Kirk and Spock conclude that the strange energy must come from a source outside the universe. A source in another, parallel universe. There are two copies of Lazarus, and they are periodically exchanging places through a kind of door &ndash; and if they ever exist in the same universe at the same time, everything, everywhere, will be annihilated in a cataclysmic [[matter]]/[[antimatter]] explosion.
 
Having relocated to the briefing room to consider all of the known evidence, Kirk and Spock conclude that the strange energy must come from a source outside the universe. A source in another, parallel universe. There are two copies of Lazarus, and they are periodically exchanging places through a kind of door &ndash; and if they ever exist in the same universe at the same time, everything, everywhere, will be annihilated in a cataclysmic [[matter]]/[[antimatter]] explosion.
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===Act Four===
 
===Act Four===
  +
[[File:Lazarus' spaceship.jpg|right|250px|thumb|Lazarus-A timeship; Lazarus-B timeship was identical except that the dome on top had been taken off]]
Once there, Kirk meets the other but sane Lazarus-B, and learns the truth. Lazarus-B's people discovered how to pass through the [[negative magnetic corridor]] that both connects and protects the two universes. When this happened, Lazarus-A couldn't bear the knowledge that he had a duplicate, and resolved to destroy his opposite. He is mad and doesn't care if this causes the destruction of two universes. Lazarus-B and Kirk realize he must be stopped: if Kirk can force Lazarus-A into the corridor, Lazarus-B can hold him there, and Kirk can destroy [[Lazarus' spaceship|his spaceship]] &ndash; which will also destroy Lazarus-B's spaceship. Access to the corridor will be sealed forever and both universes will be safe, but the men named Lazarus will be at each others' throats for the remainder of eternity. Kirk goes back through the corridor and fights in hand-to-hand combat forcibly throwing Lazarus-A into the "dimensional door." Kirk heads back to the ''Enterprise'', ordering Lieutenant [[Leslie]] to bring the ship's phasers to target the inter-dimensional ship. The two Lazaruses meet once more and fight as phaser beams vaporize the ship, sealing the two for all of eternity, caught together, between universes. Kirk ruminates on the fact that the two Lazarus are going to be at each other's throats for all time and wonders how it would be. Spock reminds Kirk that the universe is now safe. "''For you and me. But, what of Lazarus? What of Lazarus?''"
+
Once there, Kirk meets the other but sane Lazarus-B, and learns the truth. Lazarus-B's people discovered how to pass through the [[negative magnetic corridor]] that both connects and protects the two universes. When this happened, Lazarus-A couldn't bear the knowledge that he had a duplicate, and resolved to destroy his opposite. He is mad and doesn't care if this causes the destruction of two universes. Lazarus-B and Kirk realize he must be stopped: if Kirk can force Lazarus-A into the corridor, Lazarus-B can hold him there, and Kirk can destroy [[Lazarus' spaceship|his spaceship]] &ndash; which will also destroy Lazarus-B's spaceship. Access to the corridor will be sealed forever and both universes will be safe, but the men named Lazarus will be at each others' throats for the remainder of eternity. Kirk goes back through the corridor and fights in hand-to-hand combat forcibly throwing Lazarus-A into the "dimensional door." Kirk then has the crystals removed from the timeship and heads back to the ''Enterprise'', ordering Lieutenant [[Leslie]] to bring the ship's phasers to target the inter-dimensional ship. The two Lazaruses meet once more and fight as phaser beams vaporize the ship, sealing the two for all of eternity, caught together, between universes. Kirk ruminates on the fact that the two Lazarus are going to be at each other's throats for all time and wonders how it would be. Spock reminds Kirk that the universe[s] are now safe. "''For you and me. But, what of Lazarus? What of Lazarus?''"
   
 
==Log entries==
 
==Log entries==
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** Day 3 &ndash; {{d|18|November|1966}}, Friday &ndash; [[Desilu Stage 9]]: Int. [[Bridge]], [[Corridor]]s
 
** Day 3 &ndash; {{d|18|November|1966}}, Friday &ndash; [[Desilu Stage 9]]: Int. [[Bridge]], [[Corridor]]s
 
** Day 4 &ndash; {{d|21|November|1966}}, Monday &ndash; [[Desilu Stage 9]]: Int. [[Engineering|Dilithium recharging section]], [[Recreation room]] (redress of [[Briefing room]]), [[Sickbay]]
 
** Day 4 &ndash; {{d|21|November|1966}}, Monday &ndash; [[Desilu Stage 9]]: Int. [[Engineering|Dilithium recharging section]], [[Recreation room]] (redress of [[Briefing room]]), [[Sickbay]]
** Day 5 &ndash; {{d|22|November|1966}}, Tuesday &ndash; [[Vasquez Rocks]]: Ext. [[Iron-silica planet 001|Planet surface]]
+
** Day 5 &ndash; {{d|22|November|1966}}, Tuesday &ndash; [[Vasquez Rocks Natural Area Park]]: Ext. [[Iron-silica planet 001|Planet surface]]
** Day 6 &ndash; {{d|23|November|1966}}, Wednesday &ndash; [[Vasquez Rocks]]: Ext. [[Iron-silica planet 001|Planet surface]]
+
** Day 6 &ndash; {{d|23|November|1966}}, Wednesday &ndash; [[Vasquez Rocks Natural Area Park]]: Ext. [[Iron-silica planet 001|Planet surface]]
 
** Day 7 &ndash; {{d|25|November|1966}}, Friday &ndash; [[Desilu Stage 10]]: Ext. [[Iron-silica planet 001|Planet surface]]
 
** Day 7 &ndash; {{d|25|November|1966}}, Friday &ndash; [[Desilu Stage 10]]: Ext. [[Iron-silica planet 001|Planet surface]]
 
* Original broadcast date: {{d|30|March|1967}}, postponed from {{d|2|February|1967}}
 
* Original broadcast date: {{d|30|March|1967}}, postponed from {{d|2|February|1967}}
* First UK airdate: {{d|6|December|1969}}
+
* First UK airdate: {{d|8|December|1971}}
   
 
=== Story ===
 
=== Story ===
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* [[James Doohan]] ([[Montgomery Scott|Scott]]) and [[George Takei]] ([[Hikaru Sulu|Sulu]]) [[TOS main character non-appearances|do not appear]] in this episode.
 
* [[James Doohan]] ([[Montgomery Scott|Scott]]) and [[George Takei]] ([[Hikaru Sulu|Sulu]]) [[TOS main character non-appearances|do not appear]] in this episode.
 
* This was the second episode that Leslie was seen in the command chair, and the first episode in which [[Eddie Paskey]] is credited in the ending credits, albeit as "Lesley".
 
* This was the second episode that Leslie was seen in the command chair, and the first episode in which [[Eddie Paskey]] is credited in the ending credits, albeit as "Lesley".
  +
** Although it is unknown why he got to sit in the command chair, since the navigator in this scene held the rank of [[lieutenant commander]], which means he out ranked Leslie.
 
* [[Richard Derr]], who plays [[Commodore]] {{dis|Barstow|Commodore}} in this episode, later played [[Admiral]] {{dis|Fitzgerald|Admiral}} in the episode {{e|The Mark of Gideon}}.
 
* [[Richard Derr]], who plays [[Commodore]] {{dis|Barstow|Commodore}} in this episode, later played [[Admiral]] {{dis|Fitzgerald|Admiral}} in the episode {{e|The Mark of Gideon}}.
 
* Actor [[John Drew Barrymore]] (father of actress {{w|Drew Barrymore}}) was originally contracted to play Lazarus, but didn't show up to work when filming began on {{d|16|November|1966}}. The grievance filed against him on this account by the ''Star Trek'' production team led to him being unable to obtain acting work for six months in 1967. [[Robert Brown]] was a last-minute replacement. (''[[Inside Star Trek: The Real Story]]'')
 
* Actor [[John Drew Barrymore]] (father of actress {{w|Drew Barrymore}}) was originally contracted to play Lazarus, but didn't show up to work when filming began on {{d|16|November|1966}}. The grievance filed against him on this account by the ''Star Trek'' production team led to him being unable to obtain acting work for six months in 1967. [[Robert Brown]] was a last-minute replacement. (''[[Inside Star Trek: The Real Story]]'')
 
* After Barrymore failed to show up on the set, director [[Gerd Oswald]] decided to shoot scenes which didn't involve his character. On the second day, it was decided to either shut down production and scrap the episode overall or find a replacement. Robert Brown was literally dragged in to the set, right after he agreed to play the role. He recounted the filming to be very tight and tense. {{YouTube|type=v|8rPiQOU1mcg}}
 
* After Barrymore failed to show up on the set, director [[Gerd Oswald]] decided to shoot scenes which didn't involve his character. On the second day, it was decided to either shut down production and scrap the episode overall or find a replacement. Robert Brown was literally dragged in to the set, right after he agreed to play the role. He recounted the filming to be very tight and tense. {{YouTube|type=v|8rPiQOU1mcg}}
 
* There is no officer played by [[Larry Riddle]] as noted in the ''[[Star Trek Concordance]]'' {{incite|state edition}}. Lieutenant Larry Riddle was Charlene Masters' jealous boyfriend in the first draft of the script. {{OrionPress|articles/alternative_factor2.htm}}
 
* There is no officer played by [[Larry Riddle]] as noted in the ''[[Star Trek Concordance]]'' {{incite|state edition}}. Lieutenant Larry Riddle was Charlene Masters' jealous boyfriend in the first draft of the script. {{OrionPress|articles/alternative_factor2.htm}}
  +
*By actual count Lazerus changes between the universes about eight times.
   
 
===Sets and props===
 
===Sets and props===
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* The dome of Lazarus' time ship was later reused to encase the Providers in {{e|The Gamesters of Triskelion}}.
 
* The dome of Lazarus' time ship was later reused to encase the Providers in {{e|The Gamesters of Triskelion}}.
 
* This episode introduces a new set, a small subsection of engineering, described in the final draft of the script, dated {{d|11|November|1966}}, as the "Lithium [sic] Crystal Recharging Section", which was described as "''A portion of Engineering where there are bins into which [[dilithium crystal]]s are placed for recharging.''"
 
* This episode introduces a new set, a small subsection of engineering, described in the final draft of the script, dated {{d|11|November|1966}}, as the "Lithium [sic] Crystal Recharging Section", which was described as "''A portion of Engineering where there are bins into which [[dilithium crystal]]s are placed for recharging.''"
* Along with {{e|Friday's Child}}, this is one of the only two episodes where outdoor planet scenes were filmed both on [[Paramount Stage 32|Desilu Stage 10]] and on location (both times at [[Vasquez Rocks]]). Originally, all planet-side scenes were scheduled to be filmed on location, but due to the turmoil during production, director [[Gerd Oswald]] couldn't finish shooting at Vasquez. [[Matt Jefferies]] and the art department prepared a spot on Stage 10 which could accommodate the missing "alternate universe" sequence. [http://www.jacobsbrownmediagroup.com/filming-of-alternate-factor.html]
+
* Along with {{e|Friday's Child}}, this is one of the only two episodes where outdoor planet scenes were filmed both on [[Paramount Stage 32|Desilu Stage 10]] and on location (both times at [[Vasquez Rocks Natural Area Park]]). Originally, all planet-side scenes were scheduled to be filmed on location, but due to the turmoil during production, director [[Gerd Oswald]] couldn't finish shooting at Vasquez. [[Matt Jefferies]] and the art department prepared a spot on Stage 10 which could accommodate the missing "alternate universe" sequence. [http://www.jacobsbrownmediagroup.com/filming-of-alternate-factor.html]
 
* Although Lazarus's spacecraft resembles a flying saucer, [[James Blish]] describes it as "cone-shaped" in his novelization of the episode in ''[[Star Trek 10]]''.
 
* Although Lazarus's spacecraft resembles a flying saucer, [[James Blish]] describes it as "cone-shaped" in his novelization of the episode in ''[[Star Trek 10]]''.
   
 
===Costumes and make-up===
 
===Costumes and make-up===
 
* Periodically throughout the episode, the two versions of Lazarus exchange places. One of them has a wound or bandage on his head which McCoy treated: this is the "insane" Lazarus from our universe; the other is his rational counterpart from the antimatter universe.
 
* Periodically throughout the episode, the two versions of Lazarus exchange places. One of them has a wound or bandage on his head which McCoy treated: this is the "insane" Lazarus from our universe; the other is his rational counterpart from the antimatter universe.
* Although Masters works in engineering, she wears a blue uniform of the sciences section.
+
* Although Masters is referred to as a lieutenant and works in engineering, she wears a blue uniform of the sciences section, and it has no rank stripes, which normally denotes the rank of Ensign.
 
* Lazarus' costume was later worn by an extra playing a [[Babel Conference]] delegate in {{e|Journey to Babel}}.
 
* Lazarus' costume was later worn by an extra playing a [[Babel Conference]] delegate in {{e|Journey to Babel}}.
   
 
===Effects===
 
===Effects===
 
[[File:TOS planet.jpg|thumb|The iron-silica planet]]
 
[[File:TOS planet.jpg|thumb|The iron-silica planet]]
  +
[[File:The Squire of Gothos credits spelling error.jpg|thumb|Kirk between universes from {{e|The Squire of Gothos}} ]]
  +
 
* The visual of the [[Iron-silica planet 001|iron-silica planet]] from [[orbit]] is reused footage previously representing [[Alfa 177]] in {{e|The Enemy Within}} and [[M-113]] in {{e|The Man Trap}}. This planet effect was reused again as [[Argus X]] in {{e|Obsession}} and [[Ardana]] in {{e|The Cloud Minders}}.
 
* The visual of the [[Iron-silica planet 001|iron-silica planet]] from [[orbit]] is reused footage previously representing [[Alfa 177]] in {{e|The Enemy Within}} and [[M-113]] in {{e|The Man Trap}}. This planet effect was reused again as [[Argus X]] in {{e|Obsession}} and [[Ardana]] in {{e|The Cloud Minders}}.
 
* The footage of the two Lazaruses fighting was created by filming two stuntmen fighting in a smoke-filled room with orange and purple walls, then double-exposing its color negative footage over an astronomical photograph of the [[Trifid Nebula]].
 
* The footage of the two Lazaruses fighting was created by filming two stuntmen fighting in a smoke-filled room with orange and purple walls, then double-exposing its color negative footage over an astronomical photograph of the [[Trifid Nebula]].
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* 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.
 
* 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.
 
* Depending on which version of this episode you watch, the closing stills change. The original syndicated version and the VHS version show the still as the ''Enterprise'' leaving the Earth-like planet from {{e|Miri}}, however, the Sci-fi Channel and DVD version show the still as just a blue planet, possibly Rigel 12 from {{e|Mudd's Women}} or Starbase 11 from {{e|Court Martial}}.
 
* Depending on which version of this episode you watch, the closing stills change. The original syndicated version and the VHS version show the still as the ''Enterprise'' leaving the Earth-like planet from {{e|Miri}}, however, the Sci-fi Channel and DVD version show the still as just a blue planet, possibly Rigel 12 from {{e|Mudd's Women}} or Starbase 11 from {{e|Court Martial}}.
  +
* In the opening scene Spock describes the planet as having an "''oxygen-hydrogen atmosphere''". Such an atmosphere is practically impossible since a single spark would ignite it, perhaps even explosively.
   
 
=== Reception ===
 
=== Reception ===
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<gallery>
 
<gallery>
File:TOS planet.jpg|Original rendering of planet&hellip;
+
File:TOS planet.jpg|Original rendering of planet…
File:Iron-silica planet remastered.jpg|&hellip;and its remastered counterpart
+
File:Iron-silica planet remastered.jpg|…and its remastered counterpart
File:Iron-silica planet onscreen.jpg|Original rendering of the planetary radiation signature on viewscreen&hellip;
+
File:Iron-silica planet onscreen.jpg|Original rendering of the planetary radiation signature on viewscreen…
File:Iron-silica planet onscreen, remastered.jpg|&hellip;and its remastered counterpart
+
File:Iron-silica planet onscreen, remastered.jpg|…and its remastered counterpart
File:Alternative warp.jpg|Original rendering of the battle between Lazaruses in the alternative warp&hellip;
+
File:Alternative warp.jpg|Original rendering of the battle between Lazaruses in the alternative warp…
File:Alternative warp, remastered.jpg|&hellip;and the remastered counterpart
+
File:Alternative warp, remastered.jpg|…and the remastered counterpart
File:USS Enterprise fires on planet.jpg|Original rendering of the ''Enterprise'' firing on the planet&hellip;
+
File:USS Enterprise fires on planet.jpg|Original rendering of the ''Enterprise'' firing on the planet…
File:USS Enterprise fires on planet, remastered.jpg|&hellip;and the remastered counterpart
+
File:USS Enterprise fires on planet, remastered.jpg|…and the remastered counterpart
 
</gallery>
 
</gallery>
 
:''The next remastered episode to air was {{e|The Return of the Archons}}.''
 
:''The next remastered episode to air was {{e|The Return of the Archons}}.''
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===Uncredited co-stars===
 
===Uncredited co-stars===
 
* [[William Blackburn]] as [[Hadley]]
 
* [[William Blackburn]] as [[Hadley]]
* [[Vince Calenti]] as [[USS Enterprise lieutenant 7|Security lieutenant/technician]]
+
* [[Vince Calenti]] as [[USS Enterprise lieutenant 7|security lieutenant/technician]]
 
* [[Frank da Vinci]] as [[Brent]]
 
* [[Frank da Vinci]] as [[Brent]]
 
* [[Carey Foster]] as a [[USS Enterprise crewman 14|sciences crew woman]]
 
* [[Tom Lupo]] as a [[USS Enterprise operations security lieutenant 2|security guard]]
 
* [[Tom Lupo]] as a [[USS Enterprise operations security lieutenant 2|security guard]]
 
* [[Ron Veto]] as [[Harrison]]
 
* [[Ron Veto]] as [[Harrison]]
* [[Unknown actor]]s as
+
* [[Unknown performers]] as
 
** [[USS Enterprise command crewman 4|Command crewman]]
 
** [[USS Enterprise command crewman 4|Command crewman]]
 
** [[USS Enterprise command crew woman 7|Command crew woman]]
 
** [[USS Enterprise command crew woman 7|Command crew woman]]
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** [[USS Enterprise lieutenant 5|Lieutenant 2]]
 
** [[USS Enterprise lieutenant 5|Lieutenant 2]]
 
** [[USS Enterprise command navigator lieutenant commander|Navigator lieutenant commander]]
 
** [[USS Enterprise command navigator lieutenant commander|Navigator lieutenant commander]]
** [[USS Enterprise crew woman 7|Sciences crew woman]]
 
 
** [[USS Enterprise sciences lieutenant 2|Sciences lieutenant]]
 
** [[USS Enterprise sciences lieutenant 2|Sciences lieutenant]]
   
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=== References ===
 
=== References ===
[[abrasion]]; [[accusation]]; [[all hands]]; "[[Idiom|all right]]"; [[alternative warp]]; [[analysis]]; [[annihilation]]; [[answer]]; [[antimatter]]; [[antimatter universe]] (aka [[antimatter universe|minus universe]]; [[negative universe]]) [[assistant]]; "[[Idiom|at a loss for words]]"; "[[Idiom|a thing]]"; [[atmosphere]]; [[bait]]; [[bandage]]; [[battle stations]]; [[black]]; [[blindness]]; [[body temperature]]; "[[Bones]]"; [[bruise]]; [[bull]]; [[captivity]]; [[cartographic section]]; [[censure]]; [[civilization]]; [[Code Factor 1]]; [[coffee]]; [[commodore]]; [[computer bank]]; [[computer report]]; {{dis|constitution|medicine}}; [[container]]; [[country doctor]]; [[course]]; [[creature]]; [[deaf]]; [[death]]; [[devil]]; [[dilithium]] (aka [[dilithium crystal]]); [[dimension]]; [[dinosaur]]; [[dizziness]]; [[door]]; [[double-talk]]; [[training drill|drill]]; [[Earth]]; [[effect]]; [[emptiness]]; [[enemy]]; [[energizer]]/[[energizing circuit]]s; [[energy]]; [[eternity]]; [[evidence]]; [[existence]]; [[experimentation chamber]]; [[explosive]]s; [[face]]; [[fact]]; [[Fahrenheit]]; [[fire]]; [[footprint]]; [[forehead]]; [[formula]]; [[freedom]]; [[general alert]]; "[[Idiom|get to the point]]"; [[gravimetric field]]; [[gravity]]; [[guest]]; [[head]]; [[heart]]; [[heaven]]; [[Hell]]; [[hole]]; [[hour]]; [[Human]]; [[humor]]; [[hydrogen]]; [[idea]]; [[inch]]; [[indignation]]; [[information]]; [[invasion]]; [[iron]]; [[joke]]; [[justice]]; [[key]]; [[Iron-silica planet 001|Lazarus' planet]]; [[Unnamed Alpha and Beta Quadrant star systems#Lazarus' planet system|Lazarus' planet system]]; [[Lazarus' spaceship]]; [[liar]]; [[lie]]; [[life survey]]; [[logic]]; "[[Idiom|lost his mind]]"; [[magnetic communication satellite]]; [[magnetic effect]]; [[magnetic field]]; [[viewscreen|main screen]]; {{dis|mass|physics}}; [[matter]]; [[universe|matter universe]] (aka [[universe|positive universe]]) [[medic]]; [[mental state]]; [[Milky Way Galaxy]]; [[mind]]; [[minute]]; [[mission]]; [[monster]] (aka [[beast]]); [[muscleman]]; [[natural phenomena]]; [[negative magnetic corridor]]; "[[Idiom|not hold water]]"; [[object]]; "[[Idiom|of course]]"; [[orbit]]; [[ounce]]; "[[Idiom|out of the question]]"; [[oxygen]]; [[pain]]; [[parallel universe]]; [[paranoia]]; [[parsec]]; [[patient]]; [[phaser bank]]; [[photographic section]]; [[physical law]]; [[physical warp]]; [[physician]]; [[pleasure]]; [[poetry]]; [[powder keg]]; [[power]]; [[priority one]]; [[prison]]; [[pulsation phenomenon]]; [[quadrant]]; [[question]]; [[radiation]]; [[range]]; [[rationality]]; [[recuperative powers]]; [[red 2 message]]; [[report]]; [[riddle]]; [[rip in the universe]]; [[rock]]; [[safety valve]]; [[screening]]; [[search party]]; [[second]]; {{dis|section|location}}; [[security red]]; [[security team]] (aka [[security detail]]); [[self-preservation]]; [[sensor]]; [[silica]]; [[space]]; [[spaceship]]; [[speculation]]; [[Starbase 200]]; [[Starfleet Command]]; "[[Idiom|strong as a bull]]"; [[surface]]; [[terrain]]; "[[Idiom|thank you]]"; [[thing]]; [[threat]]; [[throat]]; [[time chamber]]; [[time ship]]; [[time traveler]]; [[trick]]; [[truth]]; [[understatement]]; {{dis|unit|military}}; [[universe]]; {{dis|vengeance|concept}}; [[visual section 988-TG]]; [[water]]; [[weapon]]; [[white]]; [[word]]; [[wound]]; [[year]]; [[zero gravity]]
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[[abrasion]]; [[accusation]]; [[all hands]]; "[[Idiom|all right]]"; [[alternative]]; [[alternative warp]]; [[analysis]]; [[annihilation]]; [[answer]]; [[antimatter]]; [[antimatter universe]] (aka [[antimatter universe|minus universe]]; [[negative universe]]) [[assistant]]; "[[Idiom|at a loss for words]]"; "[[Idiom|a thing]]"; [[atmosphere]]; [[bait]]; [[bandage]]; [[battle stations]]; [[black]]; [[blindness]]; [[body temperature]]; "[[Bones]]"; [[bruise]]; [[bull]]; [[captivity]]; [[cartographic section]]; [[censure]]; [[civilization]]; [[Code Factor 1]]; [[coffee]]; [[commodore]]; [[computer bank]]; [[computer report]]; {{dis|constitution|medicine}}; [[container]]; [[contact]]; [[country doctor]]; [[course]]; [[creature]]; [[danger]]; [[deaf]]; [[death]]; [[devil]]; [[dilithium]] (aka [[dilithium crystal]]); [[dimension]]; [[dinosaur]]; [[dizziness]]; [[door]]; [[double-talk]]; [[training drill|drill]]; [[Earth]]; [[effect]]; [[emptiness]]; [[enemy]]; [[energizer]]/[[energizing circuit]]s; [[energy]]; [[eternity]]; [[evidence]]; [[existence]]; [[experimentation chamber]]; [[explosive]]s; [[face]]; [[fact]]; [[Fahrenheit]]; [[fire]]; [[footprint]]; [[forehead]]; [[formula]]; [[freedom]]; [[general alert]]; "[[Idiom|get to the point]]"; [[gravimetric field]]; [[gravity]]; [[guest]]; [[head]]; [[heart]]; [[heaven]]; [[Hell]]; [[hole]]; [[hour]]; [[Human]]; [[humor]]; [[hydrogen]]; [[idea]]; [[inch]]; [[indignation]]; [[information]]; [[invasion]]; [[iron]]; [[joke]]; [[justice]]; [[key]]; [[Iron-silica planet 001|Lazarus' planet]]; [[Unnamed Alpha and Beta Quadrant star systems#Lazarus' planet system|Lazarus' planet system]]; [[Lazarus' spaceship]]; [[liar]]; [[lie]]; [[life survey]]; [[living creature]]; [[location]]; [[logic]]; "[[Idiom|lost his mind]]"; [[madman]]; [[madness]]; [[magnetic communication satellite]]; [[magnetic effect]]; [[magnetic field]]; [[viewscreen|main screen]]; {{dis|mass|physics}}; [[matter]]; [[universe|matter universe]] (aka [[universe|positive universe]]) [[medic]]; [[mental state]]; [[Milky Way Galaxy]]; [[mind]]; [[minute]]; [[miracle worker]]; [[mission]]; [[monster]] (aka [[beast]]); [[muscleman]]; [[natural phenomena]]; [[negative magnetic corridor]]; "[[Idiom|not hold water]]"; [[object]]; "[[Idiom|of course]]"; [[orbit]]; [[ounce]]; "[[Idiom|out of the question]]"; [[oxygen]]; [[pain]]; [[parallel universe]]; [[paranoia]]; [[parsec]]; [[patient]]; [[phaser bank]]; [[photographic section]]; [[physical law]]; [[physical warp]]; [[physician]]; [[pleasure]]; [[poetry]]; [[powder keg]]; [[power]]; [[priority one]]; [[prison]]; [[pulsation phenomenon]]; [[quadrant]]; [[question]]; [[radiation]]; [[range]]; [[rationality]]; [[recuperative power]]s; [[red 2 message]]; [[report]]; [[riddle]]; [[rip in the universe]]; [[rock]]; [[safety valve]]; [[screening]]; [[search]]; [[search party]]; [[second]]; {{dis|section|location}}; [[security red]]; [[security team]] (aka [[security detail]]); [[self-preservation]]; [[sensor]]; [[silica]]; [[space]]; [[spaceship]]; [[speculation]]; "[[Idiom|stand by]]"; [[Starbase 200]]; [[Starfleet Command]]; "[[Idiom|strong as a bull]]"; [[surface]]; [[terrain]]; "[[Idiom|thank you]]"; [[thing]]; [[threat]]; [[throat]]; [[time chamber]]; [[time ship]]; [[time traveler]]; [[trick]]; [[truth]]; [[understatement]]; {{dis|unit|military}}; [[universe]]; {{dis|vengeance|concept}}; [[visual section 988-TG]]; [[water]]; [[weapon]]; [[white]]; [[word]]; [[wound]]; [[year]]; [[zero gravity]]
   
 
==== Unreferenced materials ====
 
==== Unreferenced materials ====
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[[Category:TOS episodes]]

Revision as of 02:56, 30 May 2020

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

Template:Sidebar episode/temp Investigating the cause of a massive, galaxy-wide disruption in space, the Enterprise finds a mad scientist who claims he is being pursued by a hideous being.

Summary

Teaser

In standard orbit around an iron-silica-type uncharted planet, the USS Enterprise prepares to complete its survey, when the starship is violently rocked twice and everything within sensor range suddenly "blinks", almost as if the universe is on the verge of ceasing to exist. And, in the wake of this, a man appears on the surface of the planet, where moments earlier there was no life.

Act One

Beaming down, Captain Kirk, Spock, and the landing party encounter a man. "You came! Thank the heavens, it's not too late!", he exclaims. Dirty and disheveled, he falls from a rock. The landing party returns to the Enterprise with him, where Kirk learns more news – the strange phenomenon drained the dilithium crystals almost completely. Still worse, Starfleet Command issues a Code Factor 1 message – invasion status. The effect experienced by the Enterprise was also experienced everywhere in the galaxy, and far beyond. Starfleet withdraws all nearby ships – Commodore Barstow informs Kirk that the Enterprise is the bait.

In his quarters, Kirk talks to his "guest" – a man named Lazarus, who is pursuing a "thing," a monster who destroyed his entire civilization. He informs Kirk that he will stop at nothing to destroy it. Beaming back down to the planet, Kirk learns from Spock that there is no other creature here. Spock, accusing Lazarus of lying, states "I fail to comprehend your indignation, sir. I have simply made the logical deduction that you are a liar." Kirk demands the truth – and the universe turns inside out once again. The same "winking" phenomenon occurs again. And Lazarus – first he has a bandaged forehead, and then he doesn't, and then he does again.

Act Two

Iron-silica planet onscreen, remastered

Strange energy visible on the planet on the viewscreen

Meanwhile, Spock has discovered a source of radiation that is not there – a "rip" in the universe, where regular physical laws do not apply. The key to locating this source seems to be the dilithium crystals – a revelation which excites Lazarus, who demands the impossible: that Kirk give him the crystals.

The captain refuses, but Lazarus overpowers Lieutenant Charlene Masters as well as an engineering officer and steals two dilithium crystals, nevertheless.

Act Three

In the briefing room, Kirk confronts Lazarus, but he denies it, blaming his monster. And the evidence suggests he isn't the thief, for the crystals are not aboard his ship. In Sick Bay, Kirk confronts Lazarus with his lies, which Lazarus explains away by claiming that he is a time traveler. The dead world the Enterprise orbits is the distant future of his destroyed homeworld; the place and time he has traveled to in pursuit of the monster. At Dr. McCoy's urging, the crew departs Sick Bay to allow Lazarus to rest and recover from his fall.

Having relocated to the briefing room to consider all of the known evidence, Kirk and Spock conclude that the strange energy must come from a source outside the universe. A source in another, parallel universe. There are two copies of Lazarus, and they are periodically exchanging places through a kind of door – and if they ever exist in the same universe at the same time, everything, everywhere, will be annihilated in a cataclysmic matter/antimatter explosion.

Meanwhile, the alternative Lazarus creates a diversion by starting a fire in main engineering, steals the ship's energy crystals, then beams down. Kirk pursues. As he attempts to enter Lazarus' spaceship, he vanishes, hurled through the corridor into the other universe.

Act Four

Lazarus' spaceship

Lazarus-A timeship; Lazarus-B timeship was identical except that the dome on top had been taken off

Once there, Kirk meets the other but sane Lazarus-B, and learns the truth. Lazarus-B's people discovered how to pass through the negative magnetic corridor that both connects and protects the two universes. When this happened, Lazarus-A couldn't bear the knowledge that he had a duplicate, and resolved to destroy his opposite. He is mad and doesn't care if this causes the destruction of two universes. Lazarus-B and Kirk realize he must be stopped: if Kirk can force Lazarus-A into the corridor, Lazarus-B can hold him there, and Kirk can destroy his spaceship – which will also destroy Lazarus-B's spaceship. Access to the corridor will be sealed forever and both universes will be safe, but the men named Lazarus will be at each others' throats for the remainder of eternity. Kirk goes back through the corridor and fights in hand-to-hand combat forcibly throwing Lazarus-A into the "dimensional door." Kirk then has the crystals removed from the timeship and heads back to the Enterprise, ordering Lieutenant Leslie to bring the ship's phasers to target the inter-dimensional ship. The two Lazaruses meet once more and fight as phaser beams vaporize the ship, sealing the two for all of eternity, caught together, between universes. Kirk ruminates on the fact that the two Lazarus are going to be at each other's throats for all time and wonders how it would be. Spock reminds Kirk that the universe[s] are now safe. "For you and me. But, what of Lazarus? What of Lazarus?"

Log entries

  • "Captain's log, stardate 3087.6. While investigating an uncharted planet, the Enterprise, and at least this entire quadrant of space, has been subjected to violent, unexplained stress and force. Sensors have reported the presence of a Human being on the planet below who might be connected with the phenomenon. With my first officer and a security team, I have set out in search of him."
  • "Captain's log, stardate 3088.3. We continue to orbit the dead planet, which seems to be the source of the phenomenon which has struck the Enterprise, and all sections of the galaxy, once again. As for Lazarus, the story he tells me about the humanoid continues to trouble me."
  • "Captain's log, stardate 3088.7. We are no closer to finding an answer to the strange phenomenon than we were at the beginning. Not only have two of my crewmen been attacked, two of our dilithium crystals are missing, and without them, the Enterprise cannot operate at full power. They must be found."

Memorable quotes

"I want facts, not poetry."

- Kirk, after Spock describes the cosmic disturbances as "winking out"


"He's death! Anti-life! He lives to destroy!"

- Lazarus, on his antimatter counterpart


"I told you, it was the thing! All white, black and empty. A terrible emptiness."
"Let's get back to the ship."
"He'll kill us all if we don't kill him first! Kill! Kill! Kill!! Kill!! Kill!!!"

- Lazarus and James T. Kirk


"Are you deaf as well as blind?!"

- Lazarus, to Kirk and company


"I fail to comprehend your indignation, sir. I've simply made the logical deduction that you are a liar."

- Spock, to Lazarus


"Sometimes pain can drive a man harder than pleasure."

- Kirk to McCoy, on an injured Lazarus


"Jim, madness has no purpose or reason. But it may have a goal."

- Spock


"If they meet."
"Annihilation, Jim. Total, complete, absolute annihilation."

- Kirk and Spock, on the two Lazarus counterparts existing in the same universe


"So you're the terrible thing? The murdering monster? The creature?"
"Yes, captain. Or he is. It depends on your point of view, doesn't it?"

- Kirk and the antimatter Lazarus


"You'll be trapped inside that corridor with him forever. At each other's throats throughout time."
"Is it such a large price to pay for the safety of two universes?"

- Kirk and the antimatter Lazarus, on sealing the magnetic corridor


"Captain, the universe is safe."
"For you and me. But what of Lazarus? What of Lazarus?"

- Spock and Kirk

Background information

Production timeline

Story

  • The original script called for a romantic entanglement between Charlene Masters and Lazarus that was eventually cut due to Roddenberry considering it too similar to the romance between Khan and McGivers in "Space Seed". As stated by Roddenberry in a Season One memo: "In both 'Space Seed' and this story, we have a crew woman madly in love with a brawny guest star and flipping our whole gang into a real mess because she is in love… do they have to do [this] in two of our scripts?" [1]

Cast and characters

Leslie in command

The navigator and Leslie

  • James Doohan (Scott) and George Takei (Sulu) do not appear in this episode.
  • This was the second episode that Leslie was seen in the command chair, and the first episode in which Eddie Paskey is credited in the ending credits, albeit as "Lesley".
    • Although it is unknown why he got to sit in the command chair, since the navigator in this scene held the rank of lieutenant commander, which means he out ranked Leslie.
  • Richard Derr, who plays Commodore Barstow in this episode, later played Admiral Fitzgerald in the episode "The Mark of Gideon".
  • Actor John Drew Barrymore (father of actress Drew Barrymore) was originally contracted to play Lazarus, but didn't show up to work when filming began on 16 November 1966. The grievance filed against him on this account by the Star Trek production team led to him being unable to obtain acting work for six months in 1967. Robert Brown was a last-minute replacement. (Inside Star Trek: The Real Story)
  • After Barrymore failed to show up on the set, director Gerd Oswald decided to shoot scenes which didn't involve his character. On the second day, it was decided to either shut down production and scrap the episode overall or find a replacement. Robert Brown was literally dragged in to the set, right after he agreed to play the role. He recounted the filming to be very tight and tense. [2]
  • There is no officer played by Larry Riddle as noted in the Star Trek Concordance (citation needededit). Lieutenant Larry Riddle was Charlene Masters' jealous boyfriend in the first draft of the script. [3]
  • By actual count Lazerus changes between the universes about eight times.

Sets and props

Dilithium reamplification

New "recharging section" of Engineering

  • Part of the dilithium energizer panel uses the same controls as the neural neutralizer from "Dagger of the Mind".
  • The dome of Lazarus' time ship was later reused to encase the Providers in "The Gamesters of Triskelion".
  • This episode introduces a new set, a small subsection of engineering, described in the final draft of the script, dated 11 November 1966, as the "Lithium [sic] Crystal Recharging Section", which was described as "A portion of Engineering where there are bins into which dilithium crystals are placed for recharging."
  • Along with "Friday's Child", this is one of the only two episodes where outdoor planet scenes were filmed both on Desilu Stage 10 and on location (both times at Vasquez Rocks Natural Area Park). Originally, all planet-side scenes were scheduled to be filmed on location, but due to the turmoil during production, director Gerd Oswald couldn't finish shooting at Vasquez. Matt Jefferies and the art department prepared a spot on Stage 10 which could accommodate the missing "alternate universe" sequence. [4]
  • Although Lazarus's spacecraft resembles a flying saucer, James Blish describes it as "cone-shaped" in his novelization of the episode in Star Trek 10.

Costumes and make-up

  • Periodically throughout the episode, the two versions of Lazarus exchange places. One of them has a wound or bandage on his head which McCoy treated: this is the "insane" Lazarus from our universe; the other is his rational counterpart from the antimatter universe.
  • Although Masters is referred to as a lieutenant and works in engineering, she wears a blue uniform of the sciences section, and it has no rank stripes, which normally denotes the rank of Ensign.
  • Lazarus' costume was later worn by an extra playing a Babel Conference delegate in "Journey to Babel".

Effects

TOS planet

The iron-silica planet

The Squire of Gothos credits spelling error

Kirk between universes from "The Squire of Gothos"

  • The visual of the iron-silica planet from orbit is reused footage previously representing Alfa 177 in "The Enemy Within" and M-113 in "The Man Trap". This planet effect was reused again as Argus X in "Obsession" and Ardana in "The Cloud Minders".
  • The footage of the two Lazaruses fighting was created by filming two stuntmen fighting in a smoke-filled room with orange and purple walls, then double-exposing its color negative footage over an astronomical photograph of the Trifid Nebula.
  • A still image in the closing credits of "The Squire of Gothos" shows the corridor between universes set unaltered by the effects and double exposure. Titled at a 45 degree angle, Shatner stands ankle deep in smoke in a near pose of the crucifixion, falling back into a purple corridor, where an orange line draws the horizon to a vanishing point.
  • Unique to the original series are the angle of the Enterprise as it fires its phasers to destroy Lazarus's ship, as well as the use of a single phaser beam and the lack of a sound effect when the beam is viewed from space.

Continuity

  • 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.
  • Depending on which version of this episode you watch, the closing stills change. The original syndicated version and the VHS version show the still as the Enterprise leaving the Earth-like planet from "Miri", however, the Sci-fi Channel and DVD version show the still as just a blue planet, possibly Rigel 12 from "Mudd's Women" or Starbase 11 from "Court Martial".
  • In the opening scene Spock describes the planet as having an "oxygen-hydrogen atmosphere". Such an atmosphere is practically impossible since a single spark would ignite it, perhaps even explosively.

Reception

  • The Agony Booth website included this episode among "The Worst of Trek". In their recap, they write that in the episode, "Very little actually happens, and what little that does comes about only because Kirk and Company are written to act in such a way that can only be described as severely brain damaged." The reviewer continues, "I never thought I'd say this, but this episode is making "Spock's Brain" look pretty goddamn good right about now!" He concludes, "this is one of the most poorly constructed fifty minutes I've ever seen. An almost impossibly incoherent script, a damp squib of a finale, and some horrible editing make this one of the true stinkers in the Trek universe." Also, he mentions that "[John Drew] Barrymore didn't show up for filming. Given the script, I can't say I blame the fellow. The rest of the cast should have done the same thing, to be perfectly frank." [5]

Remastered information

"The Alternative Factor" was the forty-ninth episode of the remastered version of The Original Series to air. It premiered in syndication on the weekend of 1 December 2007 and aside from the standard CGI replacement footage of the Enterprise and the planet-of-the-week, this episode also featured several new, modest effects shots of the alternative warp effect, as well as phaser and transporter effects.

The next remastered episode to air was "The Return of the Archons".

Video and DVD releases

Apocrypha

Links and references

Starring

Also starring

Guest star

Featuring

With

Uncredited co-stars

Stunt doubles

References

abrasion; accusation; all hands; "all right"; alternative; alternative warp; analysis; annihilation; answer; antimatter; antimatter universe (aka minus universe; negative universe) assistant; "at a loss for words"; "a thing"; atmosphere; bait; bandage; battle stations; black; blindness; body temperature; "Bones"; bruise; bull; captivity; cartographic section; censure; civilization; Code Factor 1; coffee; commodore; computer bank; computer report; constitution; container; contact; country doctor; course; creature; danger; deaf; death; devil; dilithium (aka dilithium crystal); dimension; dinosaur; dizziness; door; double-talk; drill; Earth; effect; emptiness; enemy; energizer/energizing circuits; energy; eternity; evidence; existence; experimentation chamber; explosives; face; fact; Fahrenheit; fire; footprint; forehead; formula; freedom; general alert; "get to the point"; gravimetric field; gravity; guest; head; heart; heaven; Hell; hole; hour; Human; humor; hydrogen; idea; inch; indignation; information; invasion; iron; joke; justice; key; Lazarus' planet; Lazarus' planet system; Lazarus' spaceship; liar; lie; life survey; living creature; location; logic; "lost his mind"; madman; madness; magnetic communication satellite; magnetic effect; magnetic field; main screen; mass; matter; matter universe (aka positive universe) medic; mental state; Milky Way Galaxy; mind; minute; miracle worker; mission; monster (aka beast); muscleman; natural phenomena; negative magnetic corridor; "not hold water"; object; "of course"; orbit; ounce; "out of the question"; oxygen; pain; parallel universe; paranoia; parsec; patient; phaser bank; photographic section; physical law; physical warp; physician; pleasure; poetry; powder keg; power; priority one; prison; pulsation phenomenon; quadrant; question; radiation; range; rationality; recuperative powers; red 2 message; report; riddle; rip in the universe; rock; safety valve; screening; search; search party; second; section; security red; security team (aka security detail); self-preservation; sensor; silica; space; spaceship; speculation; "stand by"; Starbase 200; Starfleet Command; "strong as a bull"; surface; terrain; "thank you"; thing; threat; throat; time chamber; time ship; time traveler; trick; truth; understatement; unit; universe; vengeance; visual section 988-TG; water; weapon; white; word; wound; year; zero gravity

Unreferenced materials

biological lab; Riddle, Larry; rose

External links

Previous episode produced:
"Arena"
Star Trek: The Original Series
Season 1
Next episode produced:
"Tomorrow is Yesterday"
Previous episode aired:
"Errand of Mercy"
Next episode aired:
"The City on the Edge of Forever"
Previous remastered episode aired:
"The Deadly Years"
TOS Remastered Next remastered episode aired:
"The Return of the Archons"