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

To the Federation's surprise, Ambassador Spock has traveled to Romulus. Fearing he has defected, they send Captain Picard and Data on a covert mission to determine why.



The USS Enterprise-D has had a terraforming mission on Doraf I cancelled and has been recalled to Starbase 234 by Fleet Admiral Brackett who is unwilling to discuss the matter over subspace. Meeting with Captain Picard in his ready room, she advises him that one of the Federation's most prestigious and celebrated ambassadors and an advisor to Federation leaders for generations had suddenly disappeared without a trace, and that intelligence suggests that he is currently on the planet Romulus. The trip was unauthorized, and there are serious worries that he has defected. If so, the potential damage to Federation security would be devastating. She shows Picard an image taken on Romulus on his desktop monitor that clearly shows the face of the missing ambassador – Spock.

Act One

Sarek and Picard

Picard meets with Sarek for the last time

"Captain's log, stardate 45236.4. As I study the intelligence reports on Ambassador Spock's disappearance I cannot help but feel a… deeper… more personal concern about this mission, for I know this man through his father. It was barely a year ago that I shared a mind meld with the Vulcan Sarek. Now we must meet again, as I attempt to find an explanation for his son's actions."

The Enterprise arrives at the planet Vulcan. In the observation lounge, Picard and Commander Riker discuss debris recovered from a crashed Ferengi cargo ship that appears to be Vulcan in origin. The debris has been sent to Vulcan for further analysis. Riker will be assisting the forensic team studying the pieces. Sarek's wife Perrin joins Picard for mint tea. Sarek is known to be very ill, suffering from the effects of Bendii Syndrome. Perrin tells Picard that Spock couldn't have been abducted, as he tidied up his affairs before his disappearance, and then relates that there has been a rift in the relationship between Sarek and Spock over the Federation-Cardassian War. Sarek is now wasting away in bed and wants nothing more than to heal the rift between himself and his son before it's too late.

In a cargo bay, Riker and Lieutenant Commander La Forge examine the pieces of debris that were recovered from the cargo ship that crashed in a Hanolin asteroid belt. The material dentarium is detected in the debris, confirming that their origin is Vulcan.

Picard goes to the planet and Perrin escorts him to Sarek's room. Sarek is in bed and restless – Perrin attempts to rouse him, speaking loudly into his ear, but shouting and ranting Sarek doesn't initially recognize or even acknowledge Picard, and Perrin leaves them to talk, noting that Picard may or may not get through to him. Picard asks him about Spock, and he suddenly calms and becomes more lucid, his weakened emotional control leading him to speak and gesture much as a Human would. He finally recognizes Picard, who asks if he would know why Spock would be on Romulus. Sarek says possibly to meet with Pardek, a Romulan Senator whom Spock met at the Khitomer Conference decades ago. Picard asks if Spock may have defected, but Sarek responds, "Never!" Sarek soon becomes confused again, and in his ramblings recalls that when he was a child Spock would disappear into the mountains for days refusing to tell anyone what he was doing there and would endure punishments silently before immediately returning; Sarek then confesses that secretly, he was proud of his son's unyielding spirit. Picard reminds Sarek that they have a part of each other, and he knows Sarek loves Spock despite all the pain he's caused. Sarek struggles to give Picard a message to take to his son: "Live long and prosper."

Act Two

"Captain's log, stardate 45240.1. To cross the Neutral Zone I will require a cloaked ship. To that end I have set a course for the Klingon homeworld. After all we did for Gowron during the recent war I am certain he will be happy to return a favor."

The Enterprise is en route to Qo'noS to request a ship from Chancellor Gowron that has cloaking capability. They hail Gowron for three days and receive no response. Worf explains that the messages are likely being ignored because "Gowron has been re-writing Klingon history", claiming that it was his genius that ended the civil war, without a word about the help of the Federation, to which Riker adds that the arrival of the Enterprise may be an uncomfortable reminder of the facts. Picard suggests that Lieutenant Worf try to contact K'Tal of the Klingon High Council instead. Data shows Picard a Barolian visual identification of Pardek taken at trade negotiation four years ago. Picard compares the image to the one with Spock in it on Romulus and finds that the man with Spock is indeed Pardek. Data tells Picard that Pardek has been a senator for nine decades and is considered a radical by the Romulan Senate as he is a known advocate for peace. Data adds that he lives in the Krocton Segment on Romulus.

The Enterprise is hailed from Qo'noS. It is B'iJik, the Junior Adjutant to the Diplomatic Delegation. He advises Picard that Gowron is too busy to meet with him. Picard is incensed. He diplomatically threatens Gowron through B'iJik, implying that if Gowron doesn't grant his request, he will request a ship from one of Gowron's rival factions thereby causing a loss of political credibility, apart from playing to Gowron's vanity. B'iJik promises to give the message to Gowron.

Later in sickbay, Doctor Crusher is examining Commander Data's head in preparation for the prosthetic ears he will be wearing for his mission to Romulus. She tells Data and Picard that they still need to meet with Mot to be fitted for their hairpieces.

La Forge has determined that the debris found on the Ferengi cargo ship is part of the deflector array from the Vulcan ship T'Pau. This ship was decommissioned and sent to Qualor II as scrap. Riker suggests that they take the Enterprise to Qualor II and continue their investigation, and Picard agrees. Worf calls in to tell Picard that a Klingon ship has just decloaked off the Enterprise's port bow, compliments of Gowron. Picard and Data go aboard the Klingon vessel and proceed toward Romulus while the Enterprise goes the other direction toward Qualor II.

Act Three

USS Enterprise-D powered down

The Enterprise powered down

Captain K'Vada shows Picard and Data to quarters on the ship. K'Vada prods them with conditions on the ship, saying they have to share a room, eat Klingon food and get used to the hard bed. Picard takes it in stride. On the intercom, he's informed they have crossed the Neutral Zone. He confirms with Picard that he intends to continue, then orders the ship to cloak.

Stardate 45240.6. Riker takes the Enterprise to the Zakdorn-operated Surplus Depot Z-15, a Federation scrap yard for decommissioned ships. They contact the quartermaster of the depot, a Zakdorn named Klim Dokachin, who is less than helpful. Riker invites him on board and has Troi try to persuade him to assist them in finding out the whereabouts of the remainder of the T'Pau. He agrees and the Enterprise goes to the coordinates of the T'Pau. To the quartermaster's shock, the ship is gone. Dokachin says that the deflector array was sent to the USS Tripoli, a holding vessel on the outer rim of the shipyard. They go to that location and find it, too, is missing. The quartermaster informs them that there is a transport of deuterium storage tanks to the Tripoli scheduled in two hours. Riker orders the ship to be moved away and powered down with the exception of sensors and life support. They lie in wait to see what will happen when the transport is initiated.

Act Four

Picard and Data see that there is one bunk, obviously for one person, which probably amuses the Klingons. Picard lies down to sleep as Data does not need to lie down. He stands nearby calculating how he should behave when undercover as a Romulan. He makes Picard nervous and unable to sleep. Their interplay and dialogue is very humorous, with Data staring in Picard's direction (not at Picard, he clarifies to the captain when asked) as he lies on the bunk making the Captain feel uncomfortable. Just as Picard gets up, they are called to the bridge, where Captain K'Vada hands him a PADD containing a subspace message he monitored that he believes Picard will find interesting. Picard reads, and sadly tells Data the news it contains… Sarek has died.

On the Enterprise, a ship is approaching at warp speed. It stops at the coordinates 12 Delta 4 – the previous position of the Tripoli. The small combat vessel is heavily armed and receives the scheduled transport. Riker powers up all systems and hails the ship, ordering them to identify themselves. The ship turns to intercept and fires phasers at the Enterprise. Riker orders Worf to return fire, targeting only the weapon systems and using only a .75 power burst with the phasers just to "get their attention." The ship is hit and takes damage to their forward shields. La Forge details a more through assessment with collateral damage in the cargo bay and a destroyed phaser array. However he also reads massive power fluctuations and internal explosions; and concludes that with all the armament on board, the ship will blow.

No sooner from that assessment, the attacking ship explodes in front of the bridge crew's eyes.

Act Five

Data and Picard are in costume and prosthetic makeup looking just like Romulans. Data observes that Picard has been unusually pensive since learning of Sarek's death. Picard attempts to explain to Data the effect that Sarek's death has had on him, and how the mission has taken on a more personal nature as it is left to him to deliver the news to Spock. Data assumes that, as a Vulcan, Spock will simply accept Sarek's death as the logical conclusion of his illness but Picard disagrees, telling the android it is never that simple especially as Spock is half-Human and now his chance to reconcile with his father is gone. Data notes how illogical it is that, given the naturally long lifespan of Vulcans, Spock and Sarek never chose to resolve their differences. Picard notes that Spock and Sarek were a lot alike in their stubbornness and pride, constantly building emotional barriers that were hard to bring down… and now Spock will have to face the knowledge that it is too late to begin building bridges again.

Street in the Krocton Segment

A street in the Krocton Segment on Romulus

Spock on Romulus, 2368

"I am looking for Ambassador Spock."
"Indeed. You have found him, Captain Picard."

They beam down to Romulus after K'Vada tells them that he won't rescue them if anything goes wrong. On Romulus, Senator Pardek arrives at proconsul Neral's office and is asked if he knows of Jean-Luc Picard. He says he does not and is told that Picard is on his way to Romulus. They decide to alert security to be watchful for him. Picard and Data are on the street where the images of Pardek and Spock were standing. They locate the office of an intercessor (lawyer) who is likely related to Pardek. They decide to get some food and wait for him to arrive. At a nearby restaurant, they notice two Romulans in military uniform just before Pardek comes down the street. They turn toward Pardek and the uniformed Romulans stop them and escort them out. Data and Picard are taken to an underground chamber. Pardek walks in behind them and says, "Welcome to Romulus, Captain Picard." The military men were his assistants in disguise. Picard explains that he is on an urgent mission from the Federation. He is looking for Ambassador Spock. "Indeed," says a voice from deeper within the cavern. "You have found him, Captain Picard." Spock emerges from the shadows.


Log entries

Memorable quotes

"How well do you know Spock?"
"I only met him once. What I know of him comes from history books, and of course my mind meld with his father."
"Well, that must cover a lot of ground."
"Not as much as you'd imagine. Sarek and Spock… well… sometimes, fathers and sons…"

- Riker and Picard

"The man is dying. And it's my honor to tell him that his son may have betrayed the Federation."

- Picard, discussing Sarek when it appears Spock has defected to the Romulans

"Sarek, you will listen!"
"Go from me!!"
"Picard is here."
"No more chaos!! No more."
"I will leave you alone with him. He will either acknowledge you, or he won't."

- Perrin and Sarek

"Sarek, I have come a long way to see you."
"I will not answer!!"
"I must talk to you about your son."
"I wish no one with me!!"
"About Spock."

- Picard and Sarek

"I never knew what Spock was doing. When he was a boy, he would disappear for days into the mountains. I asked him where he had gone, what he had done, he refused to tell me. I insisted that he tell me. He would not. I forbade him to go. He ignored me. I punished him. He endured it, silently. But always he returned to the mountains. One might as well ask the river not to run. But secretly I admired him, the proud core of him that would not yield."

- Sarek, about Spock

"The only benefit to the Klingon Empire would be our gratitude."
"That is what you want me to tell him?"
"Yes. And please add that if he is unable to provide us with a ship, then I am sure there are others in the Klingon Empire who would be willing to help me. And then… they would have our gratitude."
(Long pause) "I see."
"Also, please tell Gowron that I am immensely gratified that he is prospering so well. A tribute to his skilled leadership."

- Picard, negotiating with B'iJik for a cloaked vessel

"He probably figures that we don't get to see a lot of handsome women out this way, and someone like you might get a little more cooperation out of me." [pause] "He's probably right."

- Klim Dokachin, speaking to Troi

"Sarek is dead."

- Picard

"These quarters were obviously intended for one crewman, sir. There is but a single sleeping space."
"I'm sure the Klingons found it amusing to put us in here together."
"Since I do not require sleep, I propose you take the…shelf, sir. I am content to stand."

- Data and Picard, trying to sort out sleeping arrangements on the Klingon ship

"Be careful, android. Some Romulan beauty might take a liking to you. Lick that paint right off your ears."

- K'Vada, on Data's Romulan disguise

"Perhaps you should appear to enjoy your soup, sir."

- Data, disguised as a Romulan, tells Picard while they are being observed on the street by Romulans

"I have come on an urgent mission from the Federation. I'm looking for Ambassador Spock."
"Indeed. You have found him, Captain Picard."

- Picard and Spock, setting up Part II

Background information

Production history

Story and script

  • "Unification" originated with a suggestion by Frank Mancuso, Sr., the then-chairman of Paramount Pictures, during the early planning of Star Trek VI: The Undiscovered Country. Noting that 1991 would mark the 25th anniversary of Star Trek first airing, Mancuso proposed to Leonard Nimoy that the Star Trek: The Original Series film series and Star Trek: The Next Generation should find a way to work together to mark the occasion. Accordingly, TNG Executive Producer Rick Berman met with Nimoy and Nicholas Meyer. Following these discussions, Nimoy and Meyer inserted several references to TNG into the film script. In return, Nimoy agreed to appear in TNG. Berman recalled, "We structured a deal with him: he got very little, a little more than scale [union salary minimum]. But with Leonard as executive producer of Star Trek VI, what you had in essence was a cross-promotion. It made everybody happy." (Star Trek: The Next Generation Companion 2nd ed., pp. 182-183; Captains' Logs: The Unauthorized Complete Trek Voyages, p. 231)
  • This was not the first time that Nimoy considered appearing as Spock on TNG. Before the 1988 Writers Guild of America strike, there were proposals for him to appear in an episode of the second season, to be written by Tracy Tormé. (Star Trek: The Next Generation - The Continuing Mission, p. 166) See also: "Return to Forever".
  • Explaining his decision to appear here, Nimoy commented, "I thought that if we could do a TNG episode in which we hinted at the beginnings of a crossover between The Original Series and The Next Generation through the Spock character and through the backstory of Spock's character, it would be helpful to both. I thought it would be interesting to the fans to see the connection between the two stories. It just seemed that it made sense for me to make an appearance at that point." (Star Trek: The Next Generation 365, p. 230)
  • Rick Berman and Michael Piller then brainstormed ideas to bring Spock into the show. According to Berman, Nimoy didn't like the first idea presented to him. It was during discussions with Nimoy that Berman and Piller came up with idea of Vulcan-Romulan reunification. Berman recalled, "I think the fix had to do with the idea that unification of Vulcan and Romulan societies was something that Spock realized was happening and had been happening for centuries, and that it had to be nurtured along. The idea of him staying behind to continue that process and that the Romulans were in fact – unbeknownst to themselves – going through the same evolutionary early metamorphosis that the Vulcans had those many centuries ago. It became more of a show that dealt with a peaceable as opposed to a warlike element, and Leonard felt strongly about that. We futzed it here and there based on Leonard's notes and, mostly, our own." (Captains' Logs: The Unauthorized Complete Trek Voyages, p. 231)
  • Star Trek VI was inspired by the collapse of the Soviet Union. The "Unification" two-parter, too, drew on contemporary real-world events, namely German reunification. (Star Trek: The Next Generation - The Continuing Mission, p. 167)
  • To Michael Piller, the title had further significance. He remarked, "We're really telling the story of the unification of The Original Series and Next Generation, symbolically closing the gap that had always been in the fans' minds, if no one else's, between the two shows." (Captains' Logs: The Unauthorized Complete Trek Voyages, p. 233) Rick Berman had similar thoughts. "It's a validation of our series from The Original Series. There has been so much talk about the two series, in a competitive way. This is a union, a joining of the two. And that's very positive for the fans." (Star Trek: The Next Generation 365, p. 230)
  • Having now settled on a story, the producers determined that it was too expensive to produce as a single episode. They decided to break it into two parts, with Spock only appearing at the end of the first part. (Captains' Logs: The Unauthorized Complete Trek Voyages, p. 233)
  • Piller hoped to write both parts, but this proved impracticable. Accordingly he turned to Jeri Taylor. She remembered that "the challenge was to tap dance well enough to sustain interest, even though this highly anticipated character was not there… are we going to be able to keep the balls in the air enough to make that first episode work?" (Captains' Logs: The Unauthorized Complete Trek Voyages, p. 233)
  • As a fan of The Original Series, Ronald D. Moore gave some pointers to Jeri Taylor, particularly in regards to the relationship between Sarek and Spock. (Captains' Logs: The Unauthorized Complete Trek Voyages, p. 233)
  • Taylor was then approached by Pocket Books to write the novelization. As she hoped to become a novelist, Taylor readily agreed. However, she was only given 30 days to write the book, while also working on the teleplay. She recalled, "Yes, September 1991 was a month I'll never forget. I was writing Part One, I was writing the novel – it was like an endless finals week. You live on coffee, you're wired, you shut yourself off from family and friends: I had no other life but 'Unification'!" (Star Trek: The Next Generation Companion 2nd ed., p. 183)


Gene Roddenberry title card Unification part 1

Memorial title card

Cast and characters

Stewart Romulan makeup

Patrick Stewart in Romulan prosthetic makeup

Sets, props, and costumes


  • Explaining the strained relationship between Sarek and Spock to Commander Riker, Captain Picard says "sometimes, fathers and sons…", at which point Riker simply responds "Understood", a reference to his own difficult relationship with his father which was explored in TNG: "The Icarus Factor".
  • At some point, Picard mentions that he has met Spock only once in the past. Indeed, in "Sarek" Picard mentioned that he had met Sarek during Sarek's son's wedding (the son presumably being Spock).
  • While conversing with Picard, Sarek mentioned the many times that Spock would disobey him and travel to the mountains. This was shown in TAS: "Yesteryear".
  • One of the shots showing the Enterprise-D passing through near wrecked ships at Surplus Depot Z15 is actually a recycled shot from "The Best of Both Worlds, Part II".
  • In terms of airing order, "Unification I" is the first time any Star Trek episode (or movie) visited Romulus (discounting the holographic creation of the Valley of Chula visited by Romulan Admiral Alidar Jarok in "The Defector").



  • This episode was nominated for an Emmy Award for Outstanding Individual Achievement in Music Composition for a Series (Dramatic Underscore) (Dennis McCarthy).

Video and DVD releases

Links and references


Also starring

Special guest star

Guest stars



Uncredited co-stars



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Qualor II vessels

Antares-class (Antares-class hulk); Alka-Selsior, USS; B-24-CLN; Challenger-class (USS Buran); Federation sentry pods; K't'inga-class (K't'inga-class hulk); Miranda-class (Miranda-class hulks); Niagara-class (USS Princeton); Nebula-class (Nebula-class hulk); Talarian freighter; Talarian warship

Library computer references

Deleted references

disease (Bendii Syndrome); gift; madness

External links

Previous episode:
"The Game"
Star Trek: The Next Generation
Season 5
Next episode:
"Unification II"
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