Star Trek:Deep Space Nine Episode Guide
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Commander Benjamin Sisko returns to Earth, where he spends several weeks debriefing Starfleet Command on the Dominion and Jem'Hadar situation. Sisko pleads for the means to defend the Bajor Sector in the event of a Jem'Hadar invasion. Another topic of discussion is Starfleet's discomfort with Deep Space 9 security chief Odo. Although Sisko defends his officer, Odo's unorthodox style has been a source of irritation to headquarters, and Sisko is ordered to accept a Starfleet security officer on the station. Sisko's son, Jake, accompanies him on the trip to Earth. Two months before 'The Search, Part I' (DS9).
The United Federation of Planets concludes an agreement with the Romulan Star Empire, under which the Romulans will provide a cloaking device to the Federation's Starfleet for the purpose of defending the Alpha Quadrant against the Jem'Hadar and the Dominion. The loaned cloaking device is installed into Starfleet's experimental U.S.S. Defiant, which is being assigned to Deep Space 9 at Sisko's request. This is the first treaty between Romulus and the Federation in many years. Prior to 'The Search, Part I' (DS9).
Ben Sisko, just prior to departing for Deep Space 9, has his personal belongings, including his treasured African art collection, taken out of storage on Earth and shipped out to the station. 'Last Thursday' before 'The Search, Part I' (DS9).
While en route from Earth to Deep Space 9, Benjamin Sisko meets with Ferengi Grand Nagus Zek. The Nagus agrees that peaceful contact with the Founders of the Dominion is essential to maintaining business opportunities. Zek therefore agrees to grant Sisko the authority to order Quark to accompany Sisko on a mission into Dominion space for the purpose of making contact with the Founders. Deep Space 9 personnel conduct simulations to determine defense strategies in the event of a Jem'Hadar attack of the Bajor Sector. The studies conclude that the station cannot last more than two hours without significant additional reinforcements. Prior to 'The Search, Part I' (DS9).



Episode 047 & 048 : The Search, Part I & II
Stardate 47212.4. The Starship Defiant, newly assigned to defend the Bajor Sector, arrives at Deep Space 9, commanded by Benjamin Sisko. Also assigned to the Defiant is Subcommander T'Rul, a Romulan officer in charge of the cloaking device on loan from the Romulan government.
The Defiant's first mission is to travel to the Karemma system in the Gamma Quadrant to locate the reclusive Founders of the Dominion. Based on information obtained from the Karemma, the Defiant then proceeds to Callinon VII, location of a subspace relay station used, indirectly, for messages from the Founders. While attempting to obtain information from the Callinon VII station, the Defiant and her crew are captured by the Jem'Hadar.
The only Defiant crew members to escape are Odo and Kira, who proceed by shuttlecraft to the Omarion Nebula, where Odo believes his species may have originated. In the nebula, Odo finds a rogue Class-M planet, on which he locates a group of shape-shifters like himself.
Odo, on the shape-shifters' homeworld in the Omarion Nebula, learns of his past. He finds that he was one of a hundred infants sent out into galaxy in hopes that he would one day return with new knowledge of the stars.
The Defiant command crew is subjected to an experiment that reveals the fact that life-forms in the Alpha Quadrant would vigorously defend against a direct incursion by the Dominion. This experiment is conducted by the Vorta for the Founders of the Dominion. It is learned that the shape-shifters hiding in the Omarion Nebula are, in fact, the reclusive Founders, and it is only through Odo's intervention that the Defiant personnel are permitted to leave unharmed.
Editors' Note: The shape-shifters revealed some of their history in 'The Search, Part II' (DS9), of a past time when they freely roamed the stars, exploring the galaxy. They told of their persecution by non-shape-shifting 'solids', of their retreat to the Omarion Nebula, of their founding the Dominion for self-preservation, and of their later efforts to explore the stars by sending a hundred infants into the galaxy.


Traffic and commerce at station Deep Space 9 declines noticeably as word spreads throughout the Bajor Sector of the Defiant crew's confrontation with the Founders. Many Bajoran nationals, fearing for their safety in the event of a war with the Dominion, depart the station for their homeworld.
Keiko O'Brien closes her schoolroom at Deep Space 9 when enrollment drops to only two pupils. Prior to 'The House of Quark' (DS9).



Episode 049 : The House Of Quark
(No stardate given in episode). Kozak, head of the Klingon House of Kozak, dies in an accident at Quark's bar on station Deep Space 9. Kozak's widow, Grilka, believing that Quark had caused her husband's death, invokes the Klingon brek'tal ritual, making Quark her new mate. Grilka's highly unusual move is intended to protect her House against the rival House of D'Ghor, which seeks to control the assets of the House of Kozak. The D'Ghor bid is rejected by Klingon High Council leader Gowron after D'Ghor demonstrates a lack of honor in his challenge against the Ferengi, Quark.


Keiko O'Brien and her daughter, Molly, depart station Deep Space 9 for an agrobiology expedition on planet Bajor. About two weeks after 'The House of Quark' (DS9).



Episode 050 : Equilibrium
(No stardate given in episode). Deep Space 9 science officer Jadzia Dax experiences unexplained hallucinations, accompanied with a significant drop in her isoboramine levels. The condition is sufficiently troubling that Dax is returned to the Trill homeworld, where she is treated by specialists at the Trill Symbiosis Commission.

Editors' Note: On Trill, Deep Space 9 personnel learned that Jadzia Dax was suffering from flashbacks to an earlier host, one whose existence had been suppressed from the Dax symbiont's memory. They learned that records of the previous host had been erased because that host was an unsuitable candidate, but that he had survived in a joined state for several months. The Trill government feared that if this information became known to the Trill public, it would call into question the general belief that only one Trill in a thousand was suitable for joining. The government believed that such questions would undermine the commission's control over the selection of host candidates, and was willing to do virtually anything to maintain that control. Accordingly, the Symbiosis Commission was willing to let Jadzia Dax die, rather than reveal this information. After Ben Sisko and Julian Bashir uncovered these facts, Symbiosis Commission officials agreed to save Jadzia's life in exchange for their promise of silence. We therefore assume that outside of the Trill government, no one except for Sisko, Bashir, and Dax are aware that nearly half of the Trill population could be successfully joined, if only there were enough symbionts available.


Dr. Julian Bashir visits planet Klaestron IV, where he studies a new burn treatment technology developed there. Prior to 'Second Skin' (DS9).



Episode 051 : Second Skin
(No stardate given in episode). Major Kira Nerys is captured by operatives of the Obsidian Order. She is surgically altered to resemble a Cardassian intelligence agent, part of an elaborate plot to force the agent's father, Legate Ghemor, to expose members of the Cardassian underground. Kira and Ghemor escape the Obsidian Order with the aid of Deep Space 9 personnel and Elim Garak.
Legate Ghemor accepts political sanctuary with the Mathenite government.


Benjamin Sisko, uneasy that his son has fallen for a dabo game operator, urges Jake to invite Mardah over for dinner so that he can meet her. Jake doesn't, and Benjamin eventually invites her himself. 'The Abandoned' (DS9).
A Jem'Hadar child is born. The infant is placed aboard a transport vessel. About two weeks before 'The Abandoned' (DS9).
A Jem'Hadar spacecraft crashes somewhere in the Gamma Quadrant. Wreckage is recovered by a Boslic ship, and taken to station Deep Space 9 for sale. The Boslic vessel's captain is unaware of the origin of the downed ship. Prior to 'The Abandoned' (DS9).



Episode 052 : The Abandoned
(No stardate given in episode). A Jem'Hadar infant is found among wreckage recovered from the Gamma Quadrant. In the care of Deep Space 9 personnel, the infant grows at an extraordinary rate. Starfleet Command expresses a strong interest in studying the youth, but security chief Odo objects. Odo, who spent much of his own life as a laboratory specimen, argues that this would be unfair to the child. The question becomes moot when the child, responding to his genetic programming, hijacks a station runabout and compels Odo to return him to the Gamma Quadrant.
Dr. Julian Bashir's study of the Jem'Hadar youth reveals the child to be genetically engineered to have an addiction to an isogenic enzyme, apparently designed by the Founders to help maintain control over the Jem'Hadar soldiers.
Benjamin Sisko and Jake Sisko have dinner with Mardah, Jake's girlfriend.



Episode 053 : Civil Defense
(No stardate given in episode). While attempting to retrofit an old uridium ore processing unit on Deep Space 9, station personnel accidentally activate an automated Cardassian security program. This counter-insurgency program, left over from the days when the station was under Cardassian control, was designed to contain an uprising by Bajoran workers. The program is deactivated with the assistance of Gul Dukat, former commander of the station.


Starfleet expresses serious concern over the continuing threat posed by the Dominion, but Benjamin Sisko convinces his superiors that exploration of the Gamma Quadrant should continue. Prior to 'Meridian' (DS9).
Major Kira Nerys meets Tiron, a business associate of Quark's, at Quark's bar on the Promenade of station Deep Space 9. Tiron is attracted to Kira, but she doesn't return the sentiment. The evening before 'Meridian' (DS9).



Episode 054 : Meridian
(No stardate given in episode). While exploring the Kylata system in the Gamma Quadrant, Starship Defiant personnel discover an unusual planet in the nearby Trialus system. This planet, whose humanoid inhabitants call it Meridian, exists on two intersecting dimensional planes. In this plane, the planet and its inhabitants have corporeal existence. In the other, the planet becomes noncorporeal and the inhabitants exist as pure consciousness. Defiant scientists discover that the dimensional shifts are triggered by an imbalance of fusion reactants in the Trialus star, suggesting the possibility that a means may be found to stabilize the planet's dimensional shifts.
Tiron contracts Quark to produce a holosuite program featuring a holographic replica of Kira Nerys. Creation of such a program without permission of the person being copied is a highly unethical invasion of privacy. Upon learning of Quark's plan, Kira makes arrangements to modify the finished program to make it unsuitable for Quark's client.
Editors' Note: Dax fell in love with Deral of the planet Meridian. Although they were separated when Meridian lapsed back into its noncorporeal existence, Dax promised she'd be there for him when Meridian reemerges in 2431.


The Cardassian Obsidian Order and the Romulan Tal Shiar begin preparing for a pre-emptive first strike against the Founders' homeworld in the Gamma Quadrant. Without the knowledge of their respective governments, the two agencies begin secretly assembling a fleet at the Orias system in Cardassian space. The plan is masterminded by former Obsidian Order head Enabran Tain. Although preparations for the attack are shrouded in secrecy, the Founders of the Dominion quickly learn of the plan. Word of activity in the Orias system also reaches Maquis agents, who mistakenly fear it is a prelude to a strike against Federation colonies.
Lieutenant Thomas Riker arrives at station Deep Space 9. Unbeknownst to Starfleet, Riker has joined the Maquis and is away without leave from his posting aboard the Starship Gandhi. Prior to 'Defiant' (DS9).
Editor's Note: The secret base in the Orias system was established in 'Defiant', but we didn't learn its purpose until 'Improbable Cause' (DS9). Tain's role and the Dominion's knowledge established in 'The Die Is Cast' (DS9).

Commander Will Riker visits station Deep Space 9, where he meets Jadzia Dax at Quark's bar. Riker earns a reputation as a good dabo player. 'Defiant' (DS9).



Episode 055 : Defiant
Stardate 48467.3. Lieutenant Thomas Riker, masquerading as William Riker, hijacks the Starship Defiant and proceeds to the Badlands. The hijacking is part of a Maquis plan to launch a preemptive strike against Cardassian forces.
Deep Space 9 commander Benjamin Sisko fears that this Maquis action may threaten the Federation-Cardassian peace treaty. He travels with Gul Dukat to planet Cardassia Prime, where Sisko provides technical assistance to the Central Command in detecting and tracking the Defiant. Although Riker is successful in making strikes against several Cardassian installations, he is prevented from attacking a secret Obsidian Order base in the Orias system. Under the terms of an agreement negotiated by Sisko, Riker is surrendered to Cardassian custody, but Riker's Maquis accomplices are released to Federation authorities, and the Defiant itself is returned to Starfleet.


Lieutenant Thomas Riker stands trial in Cardassian court for crimes against the Cardassian people. Although the seriousness of these offenses would ordinarily warrant the death penalty, Riker is sentenced to life imprisonment at the Lazon II labor camp. After 'Defiant' (DS9).

The departure of the Cardassians also makes it possible for the Gratitude Festival to be celebrated on station Deep Space 9. Kira Nerys and Jadzia Dax set up the renewal scrolls in the station's Promenade. 'Fascination' (DS9). The Gratitude Festival celebrated in 'Fascination' was the third time the event was held on the station, which suggests that the event mentioned two years earlier, in 'The Nagus' (DS9), was the first.

Mardah is accepted at the science academy on planet Regulus III. She quits her job as a dabo game operator to attend the school, some 300 light-years from Deep Space 9. Prior to 'Fascination' (DS9).



Episode 056 : Fascination
(No stardate given in episode). The Gratitude Festival is celebrated on station Deep Space 9. The annual Bajoran holiday is marked with a carnival-like atmosphere and the ritual burning of slips of paper on which celebrants have written their problems. Participating in the festival on the station are Keiko O'Brien and her daughter, Molly, who are visiting Miles O'Brien from planet Bajor.
Betazoid ambassador Lwaxana Troi, representing her government at the festival, learns she has been suffering from Zanthi fever. The condition affects the empathic abilities of older Betazoids, causing them to project their own emotions onto others. Fortunately, Zanthi fever responds to a simple wide-spectrum antiviral treatment.


Keiko O'Brien and her daughter, Molly, return to planet Bajor via shuttle. After 'Fascination' (DS9).

Commander Benjamin Sisko and members of the Deep Space 9 senior staff depart for Earth aboard the Starship Defiant to attend a Starfleet symposium on the Gamma Quadrant.
Belongo, nephew to Ferengi grand nagus Zek, is held by Starfleet authorities on planet Aldebaron III. Prior to 'Past Tense, Part I' (DS9).



Episode 057 & 058 : Past Tense, Part I & II
Stardate 48481.2. Arriving at Earth aboard the Defiant, Ben Sisko, Jadzia Dax, and Dr. Julian Bashir disappear while beaming down to San Francisco. Investigation suggests a transporter malfunction, caused by the interaction of chroniton particles with a microscopic singularity passing through the Solar System, may be responsible.
Shortly after the malfunction, Defiant personnel lose all contact with Starfleet, the result of a serious alteration in the timeline somewhere in the past. Miles O'Brien and Kira Nerys are successful in locating Sisko, Bashir, and Dax in Earth's twenty-first century, repairing the timeline.

1960
Miles O'Brien and Kira Nerys materialize in the city of San Francisco for less than a minute. They are continung their search for Benjamin Sisko, Julian Bashir, and Jadzia Dax, who were lost somewhere in time because of a transporter malfunction in the year 2371. O'Brien and Kira find no evidence of their friends in this time period. The clothing and automobiles on the San Francisco street were typical of the 'Summer of Love' in the late 1960s.
2020
The American government, reacting to serious problems of homeless and jobless people, creates special Sanctuary Districts in most cities where such people can be cared for. Unfortunately, while established with benevolent intent, the Sanctuary Districts quickly degenerate into inhumane internment camps where the unemployed, the mentally ill, and other outcasts are imprisoned. Sisko said that every major U.S. city had a Sanctuary District by the early 2020s.
2024 Student unrest in Europe makes France an undesirable tourist destination for Earth's elite. Although France's Neo-Trotskyist government tries to quell the protests, they have no more luck than the earlier Gaullist government.
Rumors of unrest are also filtering out of Sanctuary District A in San Francisco.
August 30. Benjamin Sisko, Julian Bashir, and Jadzia Dax materialize in the city of San Francisco, the result of a transporter malfunction in the year 2371. Without proper identification or money, Sisko and Bashir are placed in a Sanctuary District by city authorities.
August 31. Sisko and Bashir are involved in an altercation in which 21st-century civil rights leader Gabriel Bell is killed. Bell's death is a serious disruption of the timeline, since history records that he played a crucial role in abolishing the Sanctuary Districts in American cities.
September 1. Tensions in Sanctuary District A continue to mount, and district residents take over an administrative processing center, holding six center employees hostage. Ben Sisko, aware of the late Gabriel Bell's role in the peaceful resolution of what history will call the Bell riots, assumes Bell's identity to help protect the hostages.
September 2. Residents of Sanctuary District A manage to gain access to Earth's planetary computer network, and many residents are able to tell their stories of imprisonment in to the outside world. As a result, the American public becomes aware of the great injustice that had been hidden from them.
The Bell riots end when the governor of California orders Federal troops to retake the processing center by force. Hundreds of sanctuary residents are killed, although none of the hostages are harmed. History records that Gabriel Bell sacrificed his life to save the hostages. Benjamin Sisko, Julian Bashir, and Jadzia Dax are returned to their proper time. One San Francisco resident retains knowledge that an extraterrestrial been present on Earth.
In the wake of the Bell riots and the senseless death of so many people, American public opinion turns against the Sanctuary Districts. The sanctuaries are abolished as the United States finally begins to face serious social problems it has struggled with for over a century.


The Starship Defiant returns to station Deep Space 9. After 'Past Tense, Part II' (DS9).

Kai Winn invites Vedek Bariel to become one of her principal advisors. Bariel accepts, believing that Winn's new responsibilities have changed her. Bariel works behind the scenes with Legate Turrel to pave the way for talks with the Cardassian Central Command that could lead to a peace settlement between Bajor and Cardassia. Preliminary talks with Turrel established as having begun five months before 'Life Support' (DS9).
Kai Winn and Vedek Bareil depart Bajor for a secret meeting with Legate Turrel of the Cardassian Central Command. Although prior to her election as kai, Winn had opposed reconciliation with the Cardassians, her new responsibilities have given her a broader perspective. The planned talks are the product of months of effort by Bareil who, ironically, has become one of Winn's most trusted advisors. The proposed treaty is strongly opposed by the Obsidian Order. Also opposing the treaty is Vedek Yarka, who is defrocked by the Vedek Assembly after leading a series of protests against the pact.
An explosion aboard a Bajoran transport spacecraft critically injures Vedek Bareil. Radiation from the ship's plasma coil makes transporter use impossible, so ship proceeds to Deep Space 9 for emergency medical treatment. Prior to 'Life Support' (DS9). Objections by the Obsidian Order and Yarka established in 'Destiny' (DS9).



Episode 059 : Life Support
Stardate 48498.4. At Deep Space 9, Vedek Bareil is pronounced dead from injuries received in the transport ship explosion, but unusual radiation effects from the accident make it possible to revive him nearly an hour later. Bareil's condition remains grave, but he rejects an offer to place him in stasis until medical research can advance, so that he can continue to provide guidance to Kai Winn in the treaty negotiations with the Cardassians. Extraordinary efforts by Dr. Julian Bashir are, for a time, successful in keeping Bareil alive, but side-effects of the treatment eventually become fatal.
Kai Winn of Bajor and Legate Turrel of Cardassia sign a historic peace accord, ending decades of hostility between the two planets. The treaty is signed just before the death of Vedek Bareil, whom Winn privately credits with having made the agreement possible.


Major Kira Nerys and Odo travel to Prophet's Landing, the Bajoran colony closest to the Cardassian border. They review the colony's security procedures. Prior to 'Heart of Stone' (DS9).



Episode 060 : Heart Of Stone
Stardate 48521.5. While en route to Deep Space 9, Odo encounters a member of the Founders, who tests Odo to learn why he continues to live among the non-shape-shifting 'Solids', even though he now knows where his people come from.
Nog, son of Rom, having undergone his Attainment Ceremony, expresses his desire to gain entry to Starfleet Academy as the first Ferengi member of Starfleet. Commander Benjamin Sisko submits a letter of recommendation to accompany Nog's application, a requirement since Nog is not a Federation citizen.


Cardassian scientists work with Bajoran and Federation personnel to develop a subspace relay system. This joint venture is made possible by the peace treaty between the Bajorans and the Cardassians signed just a few weeks ago.
On planet Bajor, the Qui'al dam is put back into operation, restoring the water supply to the city of Janir. Some Bajoran religious scholars interpret this as a partial fulfillment of Takor's ancient prophesies. Former vedek Yarka seeks to suspend a Bajoran-Cardassian development project on the grounds that it will full the remainder of Takor's dire predictions, but his plea is rejected by the Bajoran government. Prior to 'Destiny' (DS9).



Episode 061 : Destiny
Stardate 48543.2. A joint Bajoran-Cardassian science team at station Deep Space 9 tests a subspace relay system designed to permit communications with the Gamma Quadrant through the Bajoran wormhole. The test triggers an unanticipated gravitational surge, resulting in a rogue comet's being pulled toward the wormhole. Science team personnel from the Starship Defiant are successful in using a shuttlepod to prevent fragments of the comet from releasing dangerous silithium contamination into the wormhole itself. Sufficient contamination is released, however, to cause an unanticipated effect: The creation of a subspace filament inside the wormhole that allows subspace radio communications through the wormhole without the need for a relay station.
Bajoran theologian Yarka believes recent events are a fulfillment of Bajoran prophet Takor's prophesies of 3,000 years ago.


Ferengi grand nagus Zek obtains a Bajoran Orb that had been stolen from the Bajoran people during the Cardassian occupation. Seeking to use the Orb to obtain future information from Bajor's Prophets, Zek travels through the Bajoran wormhole. The wormhole's inhabitants find Zek's aggressively acquisitive nature offensive, and cause Zek's personality to revert back to a time when Ferengi were kinder and more gentle. Upon Zek's departure from the wormhole, his new nature inspires him to write an entirely new version of the Ferengi Rules of Acquisition, one based on generosity and charity.
Nog travels to his homeworld, planet Ferenginar, to visit his grandmother.
The Federation Medical Council announces the nominees for this year's prestigious Carrington Award. Those honored include Dr. April Wade of the University of Nairobi, Healer Senva of the Vulcan Medical Institute, Dr. Henri Roget of the Central Hospital of Altair IV, Chirurgeon Ghee P'Trell of Andoria, and Dr. Julian Bashir of Starfleet station Deep Space 9. Bashir is the youngest nominee in the history of the Carrington Award.
Deep Space 9 entrepreneur Quark negotiates the sale of a hundred gross of self-sealing stem bolts. Prior to 'Prophet Motive' (DS9).
Editor's Note: Planet Altair IV is a reference to a planet of the same name from the classic MGM s-f film, Forbidden Planet.



Episode 062 : Prophet Motive
(No stardate given in episode). Ferengi grand nagus Zek makes an unexpected visit to station Deep Space 9, where he announces his new Rules of Acquisition, as well as the establishment of a new Ferengi Benevolent Association. Quark is horrified at this radical change in the master of Ferengi commerce and investigates the cause. Upon learning of the nagus's recent journey to meet the Bajoran prophets, Quark returns with Zek to the wormhole, and is successful in convincing the wormhole aliens to restore Zek's original personality.
The Federation Medical Council announces that Dr. Henri Roget is the winner of this year's Carrington Award.


A Romulan delegation arrives at Deep Space 9 to study Starfleet intelligence reports on the Jem'Hadar and the Founders under the terms of the recent treaty under which the Romulans loaned a cloaking device to the Federation for the purpose of investigating the Dominion. It is not realized at the time that the Romulans have also positioned a cloaked warbird near the station, and that their true mission is to collapse the Bajoran wormhole to prevent a Dominion incursion through the wormhole and to destroy DS9 so that there are no witnesses.
A Klingon spacecraft traveling through the Bajor sector reportedly suffers damage to its main computer and puts in to station Deep Space 9 for repairs. It is not realized at the time that the ship is on a covert mission under the direct command of Klingon High Council leader Gowron to observe the Romulan delegation at DS9. Prior to 'Visionary' (DS9).

Deep Space 9 operations officer Miles O'Brien suffers mild radiation poisoning when a plasma conduit in Ops bursts. Just prior to 'Visionary' (DS9).



Episode 063 : Visionary
(No stardate given in episode). Deep Space 9 commander Benjamin Sisko agrees to grant representatives of the Romulan government access to station records and U.S.S. Defiant logs relating to recent encounters with the Dominion. Sisko also authorizes the Romulans to debrief members of the Defiant crew.
Faint tetrion emissions from the cloaked Romulan warbird orbiting Deep Space 9 react with residual radiation in Miles O'Brien's body. These highly unusual reactions trigger a series of temporal shifts in which O'Brien jumps back and forth between 'normal' time and about five hours in his future. Information gained by O'Brien during these time shifts enables Deep Space 9 personnel to learn of the cloaked Romulan ship and of a Romulan plan to destroy the station and the wormhole. With this advance warning, station commander Sisko is successful in preventing these events from occurring by activating the station's defenses.
While obtaining the information necessary to avoid Deep Space 9's destruction, Miles O'Brien receives a fatal radiation exposure. Another Miles O'Brien, his self from a reality three hours in his future, returns to the present to convey the information.
Editors' Note: Miles O'Brien died in this episode. From this point in the series, the character of Miles O'Brien is replaced with an (almost) identical person from the time continuum three hours in his future.



Episode 064 : Distant Voices
(No stardate given in episode). Dr. Julian Bashir is assaulted by Altovar, a Lethean criminal seeking to transact an illegal purchase of bio-mimetic gel. Altovar employs a telepathic attack, usually fatal, that places Bashir into a deep coma for two days. During this time, Bashir experiences a series of vivid dreams in which his friends and acquaintances represent different aspects of his personality as Bashir fights to regain consciousness. Altovar is arrested by station security chief Odo.
Deep Space 9 chief medical officer Julian Bashir celebrates his 30th birthday.


The Cardassian Obsidian Order and the Romulan Tal Shiar begin final preparations for a massive attack against the Founders' homeworld in the Gamma Quadrant. Former Obsidian Order chief Enabran Tain, hoping for a major victory against the Dominion, makes plans for his return to power after the battle.
Deep Space 9 personnel prepare for a visit by the Yalosian ambassador. Guest quarters are prepared for the ambassador, but Yalosian breathing mixture proves so corrosive it dissolves the carpet in the room. Prior to 'Improbable Cause' (DS9).



Episode 065 : Improbable Cause
(No stardate given in episode). Five former members of the Obsidian Order are reported to have died under a variety of circumstances. A sixth, Elim Garak, is nearly killed in an explosion at his tailor shop on the Promenade of station Deep Space 9. Investigation by security chief Odo reveals that all six had been associates of former Obsidian Order head Enabran Tain, and had been targeted for elimination as part of Tain's plan to regain power. While conducting the investigation, Odo and Garak are captured and held aboard a Romulan warbird leading a fleet of twenty Romulan and Cardassian spacecraft for a sneak attack against the Founders' homeworld in the Omarion Nebula.


In the mirror universe, members of the Terran rebellion, led by Captain Benjamin Sisko, make plans to prevent Professor Jennifer Sisko from creating a new transpectral sensor system for the Alliance of the Cardassians and the Klingons. If completed, this sensor array will make it impossible for the rebellion to operate undetected in the Badlands. Unfortunately, before the plan can be executed, Benjamin Sisko's ship is destroyed by Cardassian forces, killing Sisko and numerous other members of the rebellion. Prior to 'Through the Looking Glass' (DS9).

Quark and Morn prepare to stage a vole fight. They are apprehended by Odo with some 27 voles in their possession in a storeroom aboard the station. Just prior to 'Through the Looking Glass' (DS9).



Episode 066 : Through The Looking Glass
(No stardate given in episode). Commander Benjamin Sisko is abducted by the Miles O'Brien from the mirror universe. The mirror O'Brien secures Sisko's aid in completing the mission to persuade the mirror Jennifer Sisko to abandon work on the transpectral sensor array. Jennifer Sisko not only agrees to cease work on the array, but joins the Terran rebellion to fight for human freedom in the mirror universe. Benjamin Sisko returns to his own continuum.
Editors' Note: 'Through the Looking Glass' (DS9) was actually filmed after 'Improbable Cause' (DS9), but before 'The Die is Cast' (DS9), since 'The Die is Cast' is a direct continuation of 'Improbable Cause'.



Episode 067 : The Die Is Cast
(No stardate given in episode). The joint fleet of the Romulan Tal Shiar and the Cardassian Obsidian Order is ambushed at the Founders' homeworld. The Dominion had evidently learned of plans for the sneak attack, and had laid a trap to disable two powerful potential adversaries from the Alpha Quadrant. Former Obsidian Order chief Enabran Tain, architect of the failed offensive, is among the many casualties. The only known survivors are Garak and Odo, rescued by the crew of the Starship Defiant.


Jake Sisko meets Kasidy Yates, a freighter captain. At Quark's bar on station Deep Space 9, Yates backs Jake in a high-stakes game of dom-jot. Jake is quite taken with Yates, and uses her as the basis of a character in a story he's writing. Jake also speculates about the possibility of a romantic relationship between Yates and his father, Benjamin Sisko.
Keiko O'Brien is impressed with Jake Sisko's finished story, and submits it on his behalf to the Pennington School on Earth. 'Explorers' (DS9).
Deep Space 9 commander Benjamin Sisko attends the re-opening of a library on planet Bajor. The library houses an extensive collection of Bajoran antiquities, including manuscripts dating back to before the fall of the First Republic. At the library, Sisko finds blueprints of an 800-year-old Bajoran spacecraft. Prior to 'Explorers' (DS9).



Episode 068 : Explorers
(No stardate given in episode). Benjamin Sisko begins a recreational project to build a replica of an ancient Bajoran sailing spacecraft. Using only materials and tools available to the ancient Bajorans, Sisko, to the bemusement of his colleagues, builds an exact copy of a ship that might have been used to reach the Cardassian system some eight centuries ago. Once completed, Sisko and his son, Jake, embark upon a planned journey to the Denorios belt in hopes of demonstrating that the ancient Bajorans could have voyaged from Bajor to Cardassia. During the flight, the solar ship is caught in a tachyon current, accidentally demonstrating how a Bajor-to-Cardassia voyage could have been made, even with a small sublight craft.
The Cardassian government announces the discovery of an ancient crash site on Cardassia, at which the remains of a Bajoran solar sailing spacecraft were found. The announcement ends years of controversy over whether or not ancient Bajorans could have made the journey from Bajor to Cardassia in such primitive vessels, long before the development of interstellar travel by Cardassians.
The Pennington School in New Zealand on Earth offers Jake Sisko a writing scholarship on the strength of a story Jake had written. Jake declines the scholarship, but retains the option of accepting it next year.
The Starship Lexington docks at station Deep Space 9. Lexington chief medical officer Elizabeth Lense visits the station's Promenade, where she meets her former classmate, Dr. Julian Bashir.


The Federation colonists on planet Cestus III revive the ancient sport of baseball by forming their own league with six teams. The teams reject the designated hitter rule, and decide to use traditional wooden bats.
Six months prior to 'Family Business'.
Editors's Note: The fact that the a colony was established on planet Cestus III would seem to imply that the Federation ironed out its differences with the Gorns as seen in 'Arena' (TOS), set in 2267.

A baseball game is held at the colony on planet Cestus III between the Pike City Pioneers and the Cestus Comets. One of the players transmits an audio recording of the game to his sister, Kasidy Yates, in the Bajor Sector. Two weeks prior to the end of 'Family Business' (DS9).

The Ferengi Commerce Authority learns that Ishka, daughter of Adred and wife of Keldar, has been earning profit in violation of Ferengi law prohibiting females from engaging in business activities.
A new runabout is delivered to station Deep Space 9, replacing the vehicle lost near the Founders' homeworld during the recent Cardassian and Romulan offensive against the Dominion. Station commander Benjamin Sisko later names the new runabout Rubicon.
A commercial freighter of Petarian registry, piloted by Captain Kasidy Yates, arrives at Deep Space 9. Prior to 'Family Business' (DS9).



Episode 069 : Family Business
(No stardate given in episode). Deep Space 9 entrepreneur Quark is served with a Writ of Accountability by the Ferengi Commerce Authority, charging him with improper supervision of a family member. The charge stems from the FCA investigation into the activities of Quark's mother, Ishka. Quark and Rom return to their homeworld of Ferenginar, where Quark is successful in persuading Ishka to plead guilty to having earned profit and to renounce her business activities.
Neither Quark nor the FCA is aware that Ishka has revealed only a third of her business holdings, and that she secretly retains control of her remaining assets.
At the urging of Jake Sisko, Benjamin Sisko meets Captain Kasidy Yates. Benjamin and Kasidy become friends when they learn that they have a common interest in the ancient sport of baseball.


Kalem Apren, First Minister of the Bajoran Provisional Government dies in his sleep of heart failure. Kai Winn is appointed to serve as his replacement until the next election.
Acting First Minister Winn orders farmers in the Dahkur Province to return reclamation equipment that had been loaned to them to make their farmlands arable again. Winn cites the need for that equipment to develop the Rakantha Province to produce urgently needed cash crops for export. The Dahkur farmers, led by former resistance leader Shakaar, refuses to return the equipment. Prior to 'Shakaar' (DS9).



Episode 070 : Shakaar
(No stardate given in episode). Bajoran leader Kai Winn enlists the assistance of Major Kira Nerys in persuading Shakaar and other Dahkur farmers to return the loaned reclamators. Although Kira is successful in arranging a meeting between Winn and Shakaar, Winn chooses instead to send in the Bajoran militia to retake the equipment by force. Winn continues to escalate the incident to the brink of civil war. The situation is defused when Shakaar and Colonel Lenaris Holem agree on the futility of killing over a couple of pieces of farm equipment.
Former resistance leader Shakaar announces his candidacy for the office of First Minister. The elections are scheduled to be held in a month. Shakaar has strong popular support, and is favored to win. Shakaar and Lenaris urge Kai Winn to withdraw her bid for the office, threatening to publicize her mismanagement of the Dahkur incident.
Station operations chief Miles O'Brien enjoys a winning streak at the dart board in Quark's bar. The streak lasts until O'Brien unexpectedly injures his shoulder.
Editors' Note: At this writing, we don't know the results of the election, or even if Kai Winn actually did withdraw from the running.


Nog begins a series of holosuite training sessions, hoping to improve his chances of gaining entry into Starfleet Academy. Quark continues to disapprove of his nephew's career choice. Prior to 'Facets' (DS9).



Episode 071 : Facets
(No stardate given in episode). Jadzia Dax enlists the help of her friends to perform the Trill zhian'tara ritual rite of closure, in which her friends temporarily embody her previous hosts. The ritual gives a Trill the chance to learn more about his or her previous lifetimes by actually meeting those hosts.
Editors' Note: 'Facets' (DS9) provides much background on Dax's previous hosts. Following are some of the significant data points. The order of hosts is the order in which they were presented in 'Facets'. Note that we don't have dates prior to Audrid's death.
Lela was Dax's first host. She was one of the first women ever to serve as a council member on Trill. (It seems possible that Lela Dax may have lived as far back as late in Earth's 21st century.)
Tobin Dax was a shy, technically-knowledgeable man who was proud of the fact that he'd worked on developing another remarkable proof of Fermat's last theorem. Jadzia Dax inherited her love of science and mathematics from Tobin.
Emony Dax was a professional gymnast. Jadzia Dax's interest in Klingon martial arts probably came from her.
Audrid was Dax's fourth host. She was a member of the Symbiosis Commission and a mother who had at least two children. 'Babel' (DS9) establishes that Dax had not had a female host for 80 years before that episode, suggesting that Audrid died in 2289. We're arbitrarily assuming that she actually died in 2284, five years earlier, since 'Equilibrium' (DS9) establishes that Torias died in 2285, and 'Blood Oath' (DS9) establishes that by 2289, Curzon Dax was already a well-known Federation mediator.
Torias Dax lived a brief joined life before dying in a shuttle accident. He was joined in 2284 (based on Audrid's assumed death date), and died in 2285 ('Equilibrium' [DS9]).
Joran Dax was a musician and a violent criminal. Joran hosted the Dax symbiont for only six months in 2285, as revealed in 'Equilibrium' [DS9]).
Curzon, Dax's most recent host, rejected Jadzia as a host candidate ('Playing God' [DS9]), but in 'Facets' (DS9) we learn that it was because he was in love with Jadzia. Later, Curzon felt guilty over having been unfair to Jadzia, so he allowed her to return to the initiate program. Curzon was joined from 2285 until his death in 2367 ('Dax' [DS9]).



Federation ambassador Krajensky, en route to planet Risa for an extended vacation, is kidnapped and possibly killed by an agent of the Dominion. A Founder assumes Krajensky's identity, and travels to station Deep Space 9. Prior to 'The Adversary' (DS9).



Episode 072 : The Adversary
Stardate 48959.1. Benjamin Sisko is promoted to captain.
The Starship Defiant departs Deep Space 9 for a mission on the Tzenkethi border, in response to reports of a potentially destabilizing coup d'état on the Tzenkethi homeworld. While en route, the Defiant crew loses control of their ship. Investigation reveals that there has been no coup, but that a Founder, posing as Ambassador Krajensky, has planned the Defiant's mission in order to trigger a new war between the Federation and the Tzenkethi. Control of the Defiant is regained and a war averted when Odo becomes the first Founder ever to kill another member of his race.
The incident is disquieting evidence that the Founders could already have infiltrated the highest levels of Starfleet Command, the Federation government, as well as other powers in the Alpha Quadrant.
Editors' Note: Sisko's log establishes that there had been a number of armed conflicts between the Federation and the Tzenkethi in the past. The last such conflict occurred at some point during Sisko's Starfleet career.




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