# List of Star Trek: Deep Space Nine episodes

Star Trek: Deep Space Nine is the third live-action television series in the Star Trek franchise and aired in syndication from January 1993 through June 1999. There were a total of 173 (original broadcast & DVD) or 176 (syndicated) episodes over the show's seven seasons, which are listed here in chronological order by original airdate, which match the episode order in each season's DVD set.
The first episode, "Emissary"; the fourth season premiere, "The Way of the Warrior"; and the series finale, "What You Leave Behind", originally aired as two-hour presentations, but were subsequently aired as sets of two one-hour episodes in reruns.

## Series overview

| Season | Episodes | Episodes | Originally released | Originally released |
| Season | Episodes | Episodes | First released | Last released |
| 1 | 20 | 20 | January 3, 1993 (1993-01-03) | June 19, 1993 (1993-06-19) |
| 2 | 26 | 26 | September 25, 1993 (1993-09-25) | June 11, 1994 (1994-06-11) |
| 3 | 26 | 26 | September 24, 1994 (1994-09-24) | June 17, 1995 (1995-06-17) |
| 4 | 26 | 26 | September 30, 1995 (1995-09-30) | June 15, 1996 (1996-06-15) |
| 5 | 26 | 26 | September 28, 1996 (1996-09-28) | June 16, 1997 (1997-06-16) |
| 6 | 26 | 26 | September 27, 1997 (1997-09-27) | June 13, 1998 (1998-06-13) |
| 7 | 26 | 26 | September 30, 1998 (1998-09-30) | June 2, 1999 (1999-06-02) |

## Episodes
### Season 1 (1993)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | Viewers (millions) |
| 1 | 1 | "Emissary" | David Carson | Story by : Rick Berman & Michael Piller Teleplay by : Michael Piller | January 3, 1993 (1993-01-03) | 40510-721 (401-402) | 18.8 |
| 2 | 2 | "Emissary" | David Carson | Story by : Rick Berman & Michael Piller Teleplay by : Michael Piller | January 3, 1993 (1993-01-03) | 40510-721 (401-402) | 18.8 |
| A new joint Federation/Bajoran crew is assigned to a former Cardassian space station: Deep Space Nine. Benjamin Sisko, the new station commander, is declared the Emissary of the Prophets by a Bajoran priest, and discovers a stable wormhole connecting Bajor to the Gamma Quadrant on the other side of the galaxy. Originally shown as a two-hour pilot movie, but converted to two separate episodes in syndication. ||||||||
| 3 | 3 | "Past Prologue" | Winrich Kolbe | Katharyn Powers | January 10, 1993 (1993-01-10) | 40510-404 | 13.4 |
| A Bajoran terrorist with ties to Kira arrives on Deep Space Nine and is pursued by the Cardassians. Garak, a mysterious Cardassian tailor who lives on the station, assists in uncovering what he is up to. ||||||||
| 4 | 4 | "A Man Alone" | Paul Lynch | Story by : Gerald Sanford and Michael Piller Teleplay by : Michael Piller | January 17, 1993 (1993-01-17) | 40510-403 | 13.0 |
| Odo is accused of the murder of a Bajoran smuggler. ||||||||
| 5 | 5 | "Babel" | Paul Lynch | Story by : Sally Caves and Ira Steven Behr Teleplay by : Michael McGreevey and Naren Shankar | January 24, 1993 (1993-01-24) | 40510-405 | 11.6 |
| A mysterious virus plagues the station, causing first aphasia and eventually death. ||||||||
| 6 | 6 | "Captive Pursuit" | Corey Allen | Story by : Jill Sherman Donner Teleplay by : Jill Sherman Donner and Michael Piller | January 31, 1993 (1993-01-31) | 40510-406 | 12.9 |
| O'Brien befriends an alien from the Gamma Quadrant who is being hunted. ||||||||
| 7 | 7 | "Q-Less" | Paul Lynch | Story by : Hannah Louise Shearer Teleplay by : Robert Hewitt Wolfe | February 7, 1993 (1993-02-07) | 40510-407 | 12.8 |
| Q and Vash arrive on Deep Space Nine. However, Vash has grown annoyed by Q's attention and wants him to leave her alone. ||||||||
| 8 | 8 | "Dax" | David Carson | Story by : Peter Allan Fields Teleplay by : D. C. Fontana and Peter Allan Fields | February 14, 1993 (1993-02-14) | 40510-408 | 12.1 |
| Jadzia Dax is arrested for a murder allegedly committed by Curzon Dax, a previous host of her symbiont. An extradition hearing is held to determine whether Jadzia can be held liable for Curzon's actions. ||||||||
| 9 | 9 | "The Passenger" | Paul Lynch | Story by : Morgan Gendel Teleplay by : Morgan Gendel and Robert Hewitt Wolfe & Michael Piller | February 21, 1993 (1993-02-21) | 40510-409 | 11.6 |
| A sinister criminal cheats death to hide his consciousness in the mind of someone on Deep Space Nine. ||||||||
| 10 | 10 | "Move Along Home" | David Carson | Story by : Michael Piller Teleplay by : Frederick Rappaport and Lisa Rich & Jeanne Carrigan-Fauci | March 14, 1993 (1993-03-14) | 40510-410 | 11.4 |
| Quark plays a board game with the Wadi, a newly encountered species from the Gamma Quadrant, and the lives of the crew seemingly depend on the outcome. ||||||||
| 11 | 11 | "The Nagus" | David Livingston | Story by : David Livingston Teleplay by : Ira Steven Behr | March 21, 1993 (1993-03-21) | 40510-411 | 10.7 |
| Quark is named as the head of the Ferengi Alliance by Grand Nagus Zek, but he is now surrounded by enemies. ||||||||
| 12 | 12 | "Vortex" | Winrich Kolbe | Sam Rolfe | April 18, 1993 (1993-04-18) | 40510-412 | 9.7 |
| Odo discovers he might not be the only one of his kind when a visitor from the Gamma Quadrant claims he can contact Odo's people. ||||||||
| 13 | 13 | "Battle Lines" | Paul Lynch | Story by : Hilary J. Bader Teleplay by : Richard Danus and Evan Carlos Somers | April 25, 1993 (1993-04-25) | 40510-413 | 9.9 |
| The spiritual leader of Bajor, Kai Opaka, travels with Sisko, Bashir and Kira on a trip to the Gamma Quadrant, but is stranded on a world where the dead are resurrected. ||||||||
| 14 | 14 | "The Storyteller" | David Livingston | Story by : Kurt Michael Bensmiller Teleplay by : Kurt Michael Bensmiller and Ira Steven Behr | May 2, 1993 (1993-05-02) | 40510-414 | 9.3 |
| O'Brien is recruited to save a Bajoran village from destruction by a mysterious cloud creature. ||||||||
| 15 | 15 | "Progress" | Les Landau | Peter Allan Fields | May 9, 1993 (1993-05-09) | 40510-415 | 9.2 |
| Kira has to deal with a stubborn farmer (Brian Keith) who refuses to leave his home even though it is slated for demolition. ||||||||
| 16 | 16 | "If Wishes Were Horses" | Robert Legato | Story by : Nell McCue Crawford & William L. Crawford Teleplay by : Nell McCue Crawford & William L. Crawford and Michael Piller | May 16, 1993 (1993-05-16) | 40510-416 | 9.0 |
| Deep Space Nine is put in jeopardy when the crew's thoughts manifest themselves, and such figures as Rumpelstiltskin appear. ||||||||
| 17 | 17 | "The Forsaken" | Les Landau | Story by : Jim Trombetta Teleplay by : Don Carlos Dunaway and Michael Piller | May 23, 1993 (1993-05-23) | 40510-417 | 9.7 |
| The Federation ambassador from Betazed, Lwaxana Troi, visits the station, and develops an affection for Odo. Meanwhile, data from a mysterious Gamma Quadrant probe causes system failures on DS9. ||||||||
| 18 | 18 | "Dramatis Personae" | Cliff Bole | Joe Menosky | May 30, 1993 (1993-05-30) | 40510-418 | 9.0 |
| Tensions rise between the DS9 crew members after they are telepathically imprinted with the memories of participants in an alien power struggle. ||||||||
| 19 | 19 | "Duet" | James L. Conway | Story by : Lisa Rich & Jeanne Carrigan-Fauci Teleplay by : Peter Allan Fields | June 13, 1993 (1993-06-13) | 40510-419 | 8.9 |
| A visiting Cardassian, Marritza, may in fact be the notorious war criminal Gul Darhe'el, butcher of Gallitep labor camp, and Kira is determined to bring him down. ||||||||
| 20 | 20 | "In the Hands of the Prophets" | David Livingston | Robert Hewitt Wolfe | June 20, 1993 (1993-06-20) | 40510-420 | 8.8 |
| A conniving Bajoran cleric, Vedek Winn, protests Keiko O'Brien's school on Deep Space Nine when she discovers Keiko is teaching her students that the inhabitants of the wormhole are aliens, not gods. ||||||||

### Season 2 (1993–94)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | Viewers (millions) |
| 21 | 1 | "The Homecoming" | Winrich Kolbe | Story by : Jeri Taylor and Ira Steven Behr Teleplay by : Ira Steven Behr | September 26, 1993 (1993-09-26) | 40510-421 | 9.7 |
| Quark gives Kira a Bajoran earring he claims was sent as a message from a Cardassian mining planet. (Part 1 of 3) ||||||||
| 22 | 2 | "The Circle" | Corey Allen | Peter Allan Fields | October 3, 1993 (1993-10-03) | 40510-422 | 9.0 |
| The Circle attempts to topple the Bajoran government, but there is more to the situation than meets the eye. (Part 2 of 3) ||||||||
| 23 | 3 | "The Siege" | Winrich Kolbe | Michael Piller | October 10, 1993 (1993-10-10) | 40510-423 | 9.0 |
| Sisko and Li Nalas help stop Deep Space Nine from being commandeered by the Bajorans, while Kira and Dax try to put an end to the Circle by presenting evidence that Minister Jaro is being backed by the Cardassians. (Part 3 of 3) ||||||||
| 24 | 4 | "Invasive Procedures" | Les Landau | Story by : John Whelpley Teleplay by : John Whelpley and Robert Hewitt Wolfe | October 17, 1993 (1993-10-17) | 40510-424 | 9.3 |
| A plasma storm leads to the evacuation of most of the station, but a Trill refugee has his own plans. ||||||||
| 25 | 5 | "Cardassians" | Cliff Bole | Story by : Gene Wolande & John Wright Teleplay by : James Crocker | October 24, 1993 (1993-10-24) | 40510-425 | 9.1 |
| Garak investigates the identity of a Cardassian boy, Rugal, abandoned on Bajor, who has been raised by a Bajoran. ||||||||
| 26 | 6 | "Melora" | Winrich Kolbe | Story by : Evan Carlos Somers Teleplay by : Evan Carlos Somers, Steven Baum, Michael Piller and James Crocker | October 31, 1993 (1993-10-31) | 40510-426 | 9.7 |
| Bashir tries to help Ensign Melora Pazlar, the first Elaysian to join Starfleet, adjust to "normal" gravity. ||||||||
| 27 | 7 | "Rules of Acquisition" | David Livingston | Story by : Hilary J. Bader Teleplay by : Ira Steven Behr | November 7, 1993 (1993-11-07) | 40510-427 | 8.8 |
| Quark represents Grand Nagus Zek in a plot to establish a Ferengi business presence in the Gamma Quadrant. Pel, a young Ferengi, teams up with Quark and they learn that to do business in the Gamma Quadrant they must contact the Keremma, a member race of the Dominion. ||||||||
| 28 | 8 | "Necessary Evil" | James L. Conway | Peter Allan Fields | November 14, 1993 (1993-11-14) | 40510-428 | 9.2 |
| When Quark is shot, Odo re-opens a five-year-old murder case of a Bajoran, Mr. Vaatrik, who was a Cardassian collaborator. ||||||||
| 29 | 9 | "Second Sight" | Alexander Singer | Story by : Mark Gehred-O'Connell Teleplay by : Mark Gehred-O'Connell, Ira Steven Behr and Robert Hewitt Wolfe | November 21, 1993 (1993-11-21) | 40510-429 | 9.4 |
| A mysterious woman, Fenna, catches Sisko's eye during their fleeting meetings. Meanwhile, an extremely egotistical scientist is working on a project to re-ignite a dead star. ||||||||
| 30 | 10 | "Sanctuary" | Les Landau | Story by : Gabe Essoe & Kelley Miles Teleplay by : Frederick Rappaport | November 28, 1993 (1993-11-28) | 40510-430 | 8.9 |
| The Skrreea, displaced humanoid farmers from the Gamma Quadrant, claim Bajor as Kentanna, their legendary homeland. ||||||||
| 31 | 11 | "Rivals" | David Livingston | Story by : Jim Trombetta & Michael Piller Teleplay by : Joe Menosky | January 2, 1994 (1994-01-02) | 40510-431 | 9.3 |
| Quark feels threatened when a charming swindler, Martus Mazur, opens a competing bar, known as Club Martus. ||||||||
| 32 | 12 | "The Alternate" | David Carson | Story by : Jim Trombetta and Bill Dial Teleplay by : Bill Dial | January 9, 1994 (1994-01-09) | 40510-432 | 8.9 |
| A scientist, Dr. Mora Pol of the Bajoran Science Institute, finds a life-form in the Gamma Quadrant that may be related to Odo. ||||||||
| 33 | 13 | "Armageddon Game" | Winrich Kolbe | Morgan Gendel | January 30, 1994 (1994-01-30) | 40510-433 | 8.6 |
| O'Brien and Bashir help two warring races, the Kellerun and T'lani, erase all knowledge of a deadly biological weapon, but are not trusted to keep what they have learned a secret. ||||||||
| 34 | 14 | "Whispers" | Les Landau | Paul Robert Coyle | February 6, 1994 (1994-02-06) | 40510-434 | 9.3 |
| While preparing the station for upcoming peace talks, O'Brien discovers that the crew have been hiding information from him and giving orders behind his back. O'Brien begins to suspect everyone on the station is gradually being altered or replaced by an unknown force. ||||||||
| 35 | 15 | "Paradise" | Corey Allen | Story by : Jim Trombetta and James Crocker Teleplay by : Jeff King, Richard Manning and Hans Beimler | February 13, 1994 (1994-02-13) | 40510-435 | 8.2 |
| Commander Sisko and Chief O'Brien are stranded on a planet, Aurelius, where their leader, Alixus, rejects technology, even when it means the death of others. ||||||||
| 36 | 16 | "Shadowplay" | Robert Scheerer | Robert Hewitt Wolfe | February 20, 1994 (1994-02-20) | 40510-436 | 9.5 |
| Odo and Dax investigate why a village's residents are disappearing. ||||||||
| 37 | 17 | "Playing God" | David Livingston | Story by : Jim Trombetta Teleplay by : Jim Trombetta and Michael Piller | February 27, 1994 (1994-02-27) | 40510-437 | 8.8 |
| Dax is supervising Arjin, a Trill candidate for joining, and she helps him find his voice and discover what he wants from life and from joining. Meanwhile, a proto-universe threatens to destroy the station and Bajor. ||||||||
| 38 | 18 | "Profit and Loss" | Robert Wiemer | Flip Kobler and Cindy Marcus | March 20, 1994 (1994-03-20) | 40510-438 | 8.8 |
| Quark is reunited with his former Cardassian lover, Natima Lang, but she is engaged in dangerous political intrigue with her students Rekela and Hogue: they want to reduce the political power of the Cardassian military. ||||||||
| 39 | 19 | "Blood Oath" | Winrich Kolbe | Peter Allan Fields | March 27, 1994 (1994-03-27) | 40510-439 | 8.4 |
| Jadzia Dax honors an oath made by Curzon Dax to three Klingons (Kor, Koloth, and Kang), and goes with them on a crusade against their sworn enemy "the Albino" who murdered their firstborn children as revenge for stopping his raid on a Klingon colony. ||||||||
| 40 | 20 | "The Maquis, Part I" | David Livingston | Story by : Rick Berman, Michael Piller, Jeri Taylor and James Crocker Teleplay by : James Crocker | April 24, 1994 (1994-04-24) | 40510-440 | 8.6 |
| Federation colonists reject a treaty with Cardassia and take matters into their own hands, forming a terrorist group called 'The Maquis'. ||||||||
| 41 | 21 | "The Maquis, Part II" | Corey Allen | Story by : Rick Berman, Michael Piller, Jeri Taylor and Ira Steven Behr Teleplay by : Ira Steven Behr | May 1, 1994 (1994-05-01) | 40510-441 | 8.3 |
| Federation colonists reject a treaty with Cardassia and take matters into their own hands by planning to destroy a weapons depot at the Cardassian Bryma colony. ||||||||
| 42 | 22 | "The Wire" | Kim Friedman | Robert Hewitt Wolfe | May 8, 1994 (1994-05-08) | 40510-442 | 8.0 |
| In order to save Garak's life, Bashir must unravel some of the secrets in the Cardassian's past. ||||||||
| 43 | 23 | "Crossover" | David Livingston | Story by : Peter Allan Fields Teleplay by : Peter Allan Fields and Michael Piller | May 15, 1994 (1994-05-15) | 40510-443 | 8.9 |
| Kira and Bashir accidentally cross into the Mirror Universe, where a Klingon-Cardassian alliance rules and Terrans are slaves on the station. A century before, James T. Kirk had made a similar crossover, affecting human and galactic history. ||||||||
| 44 | 24 | "The Collaborator" | Cliff Bole | Story by : Gary Holland Teleplay by : Gary Holland, Ira Steven Behr and Robert Hewitt Wolfe | May 22, 1994 (1994-05-22) | 40510-444 | 6.6 |
| A Bajoran secretary named Kubus, who aided the Cardassian occupation forces, wants to return home from exile. Vedek Winn engages in a power play against Vedek Bareil to become Kai. ||||||||
| 45 | 25 | "Tribunal" | Avery Brooks | Bill Dial | June 5, 1994 (1994-06-05) | 40510-445 | 7.7 |
| O'Brien is declared guilty of an unspecified crime and later "tried" at a tribunal held on Cardassia Prime. ||||||||
| 46 | 26 | "The Jem'Hadar" | Kim Friedman | Ira Steven Behr | June 12, 1994 (1994-06-12) | 40510-446 | 7.7 |
| Sisko, Jake, Nog, and Quark go camping on a Gamma Quadrant world. Sisko and Quark are captured by mysterious soldiers called the Jem'Hadar and meet a force, the Dominion, who rival the Federation. ||||||||

### Season 3 (1994–95)

| No. overall | No. in season | Title | Directed by | Written by | Original air date | Prod. code | Viewers (millions) |
| 47 | 1 | "The Search, Part I" | Kim Friedman | Story by : Ira Steven Behr and Robert Hewitt Wolfe Teleplay by : Ronald D. Moore | September 24, 1994 (1994-09-24) | 40510-447 | 9.3 |
| Sisko takes the new USS Defiant into the Gamma Quadrant to find the mysterious leaders of the Dominion and avert a war, while Odo is drawn by instinct towards his home planet in the Omarion Nebula. ||||||||
| 48 | 2 | "The Search, Part II" | Jonathan Frakes | Story by : Ira Steven Behr and Robert Hewitt Wolfe Teleplay by : Ira Steven Behr | October 1, 1994 (1994-10-01) | 40510-448 | 8.2 |
| Odo begins to connect with his fellow Changelings as Sisko attempts to negotiate peace with the Dominion. ||||||||
| 49 | 3 | "The House of Quark" | Les Landau | Story by : Tom Benko Teleplay by : Ronald D. Moore | October 8, 1994 (1994-10-08) | 40510-449 | 7.6 |
| Quark brags falsely about killing a Klingon, Kozak, and is then forced to marry the widow, Grilka, founding his own 'House of Quark'. ||||||||
| 50 | 4 | "Equilibrium" | Cliff Bole | Story by : Christopher Teague Teleplay by : René Echevarria | October 15, 1994 (1994-10-15) | 40510-450 | 7.4 |
| A secret from Dax's past could mean the end of the current host's life. ||||||||
| 51 | 5 | "Second Skin" | Les Landau | Robert Hewitt Wolfe | October 22, 1994 (1994-10-22) | 40510-451 | 7.8 |
| Kira is kidnapped by Cardassians, surgically altered to look Cardassian and told she is actually an undercover Cardassian agent. ||||||||
| 52 | 6 | "The Abandoned" | Avery Brooks | D. Thomas Maio and Steve Warnek | October 29, 1994 (1994-10-29) | 40510-452 | 8.0 |
| Quark purchases a salvaged ship from the Gamma Quadrant and discovers an infant on board. Sisko invites Mardah, the dabo woman Jake is interested in, to dinner. Odo officially gets quarters aboard DS9. ||||||||
| 53 | 7 | "Civil Defense" | Reza Badiyi | Mike Krohn | November 5, 1994 (1994-11-05) | 40510-453 | 8.1 |
| Deep Space Nine is progressively locked down after O'Brien, Jake and Sisko accidentally activate an automated Cardassian security program. The program's counter-insurgency measures keep escalating until it initiates an auto-destruct. Gul Dukat beams on board, but is unable to stop the self-destruct sequence. ||||||||
| 54 | 8 | "Meridian" | Jonathan Frakes | Story by : Hilary J. Bader and Evan Carlos Somers Teleplay by : Mark Gehred-O'Connell | November 12, 1994 (1994-11-12) | 40510-454 | 8.5 |
| Dax falls in love with Deral, who will soon disappear because he is a member of Meridian, a planet that phases between dimensions every 60 years. ||||||||
| 55 | 9 | "Defiant" | Cliff Bole | Ronald D. Moore | November 19, 1994 (1994-11-19) | 40510-455 | 9.3 |
| Commander William Riker shows up unannounced and Kira shows him the Defiant, where his real identity and his true motives for coming to Deep Space Nine are revealed. ||||||||
| 56 | 10 | "Fascination" | Avery Brooks | Story by : Ira Steven Behr and James Crocker Teleplay by : Philip LaZebnik | November 26, 1994 (1994-11-26) | 40510-456 | 8.2 |
| Lwaxana Troi pursues Odo during the Bajoran Gratitude Festival as members of the crew suddenly become infatuated with one another. ||||||||
| 57 | 11 | "Past Tense: Part I" | Reza Badiyi | Story by : Ira Steven Behr & Robert Hewitt Wolfe Teleplay by : Robert Hewitt Wolfe | December 31, 1994 (1994-12-31) | 40510-457 | 7.4 |
| A transporter accident sends Sisko, Bashir, and Dax three centuries into Earth's dark past to a time just before the 2024 Bell riots, a violent civil disturbance in opposition to Sanctuaries which are controlled ghettos for the dispossessed. ||||||||
| 58 | 12 | "Past Tense: Part II" | Jonathan Frakes | Story by : Ira Steven Behr & Robert Hewitt Wolfe Teleplay by : Ira Steven Behr & René Echevarria | January 7, 1995 (1995-01-07) | 40510-458 | 8.0 |
| Sisko assumes the role of a pivotal historical figure, Gabriel Bell, in order to restore the timeline. ||||||||
| 59 | 13 | "Life Support" | Reza Badiyi | Story by : Christian Ford & Roger Soffer Teleplay by : Ronald D. Moore | January 28, 1995 (1995-01-28) | 40510-459 | 8.2 |
| Bashir's ethics are put to the test as he keeps Vedek Bareil alive long enough to help Kai Winn complete negotiations for a peace treaty with Cardassia. ||||||||
| 60 | 14 | "Heart of Stone" | Alexander Singer | Ira Steven Behr & Robert Hewitt Wolfe | February 4, 1995 (1995-02-04) | 40510-460 | 8.3 |
| When Kira's life is put in jeopardy, Odo expresses the depth of his feelings for her. Meanwhile, back on the station, Nog requests a letter of recommendation to Starfleet. ||||||||
| 61 | 15 | "Destiny" | Les Landau | David S. Cohen & Martin A. Winer | February 11, 1995 (1995-02-11) | 40510-461 | 8.1 |
| Despite Trakor's Bajoran prophecy of destruction, Sisko assists in a joint scientific venture with the Cardassians to open communications through the Bajoran wormhole. Sisko is forced to face his status as Emissary seriously in the face of the prophecy. ||||||||
| 62 | 16 | "Prophet Motive" | René Auberjonois | Ira Steven Behr & Robert Hewitt Wolfe | February 18, 1995 (1995-02-18) | 40510-462 | 7.5 |
| Quark discovers that Grand Nagus Zek has written a new virtuous and benevolent set of the Rules of Acquisition, which would put an end to traditional Ferengi ways. Bashir is oddly disturbed when he is nominated for a highly prestigious medical award. ||||||||
| 63 | 17 | "Visionary" | Reza Badiyi | Story by : Ethan H. Calk Teleplay by : John Shirley | February 25, 1995 (1995-02-25) | 40510-463 | 7.9 |
| Exposure to radiation causes O'Brien to jump five hours into the future for brief periods, including one that shows Deep Space Nine's destruction, while the station hosts Romulan and Klingon delegations. ||||||||
| 64 | 18 | "Distant Voices" | Alexander Singer | Story by : Joe Menosky Teleplay by : Ira Steven Behr & Robert Hewitt Wolfe | April 8, 1995 (1995-04-08) | 40510-464 | 7.1 |
| Approaching his 30th birthday, Julian Bashir is subjected to a telepathic attack by an alien seeking a restricted substance. He wakes up to find the station almost deserted and that he is aging rapidly. ||||||||
| 65 | 19 | "Through the Looking Glass" | Winrich Kolbe | Ira Steven Behr & Robert Hewitt Wolfe | April 15, 1995 (1995-04-15) | 40510-466 | 6.9 |
| Sisko is convinced by "Smiley" O'Brien from the Mirror Universe to assume the role of the dead Captain Sisko. ||||||||
| 66 | 20 | "Improbable Cause" | Avery Brooks | Story by : Robert Lederman & David R. Long Teleplay by : René Echevarria | April 22, 1995 (1995-04-22) | 40510-465 | 6.9 |
| Garak's tailor shop is bombed, forcing Odo to investigate who is trying to kill the Cardassian exile – and why. (Part 1 of 2) ||||||||
| 67 | 21 | "The Die Is Cast" | David Livingston | Ronald D. Moore | April 29, 1995 (1995-04-29) | 40510-467 | 7.0 |
| Garak reluctantly tortures Odo for information to prove his loyalty to his former mentor, Enabran Tain, as a joint Tal Shiar/Obsidian Order attack on the Founders in the Omarian Nebula is underway. (Part 2 of 2) ||||||||
| 68 | 22 | "Explorers" | Cliff Bole | Story by : Hilary J. Bader Teleplay by : René Echevarria | May 6, 1995 (1995-05-06) | 40510-468 | 6.7 |
| Sisko builds a replica of an ancient Bajoran space vessel and with Jake attempts to prove that the Bajorans developed interstellar travel before Cardassians. Bashir frets over the impending visit of the classmate who graduated first in his class at Starfleet Medical Academy. ||||||||
| 69 | 23 | "Family Business" | René Auberjonois | Ira Steven Behr & Robert Hewitt Wolfe | May 13, 1995 (1995-05-13) | 40510-469 | 6.9 |
| Quark returns to his home planet to confront his mother (Moogie) after hearing from the Ferengi Commerce Authority that she broke the law by earning profit. Sisko meets Captain Kasidy Yates as a romantic interest, which Sisko has discovered his son has told most of the station about. ||||||||
| 70 | 24 | "Shakaar" | Jonathan West | Gordon Dawson | May 20, 1995 (1995-05-20) | 40510-470 | 7.1 |
| Kai Winn needs Kira to convince the former resistance leader Shakaar, now a farmer on Bajor, to return soil reclamators needed elsewhere in Rakantha, which used to be Bajor's most productive agricultural region. ||||||||
| 71 | 25 | "Facets" | Cliff Bole | René Echevarria | June 10, 1995 (1995-06-10) | 40510-471 | 5.9 |
| Jadzia Dax deals with feelings of inferiority as she encounters past hosts in a Trill Zhian'tara ceremony, which is able to transfer the memories of former hosts into another recipient, and Odo takes on the role of Curzon Dax during the experience. ||||||||
| 72 | 26 | "The Adversary" | Alexander Singer | Ira Steven Behr & Robert Hewitt Wolfe | June 17, 1995 (1995-06-17) | 40510-472 | 7.1 |
| Ambassador Krajensky informs newly promoted Captain Sisko that there has been a coup on Tzenketh. He orders Sisko to take the Defiant to the nearby Federation colonies to ”show the flag” and keep the Tzenkethi quiet. A Changeling hides on board the Defiant and sabotages the ship. ||||||||

### Season 4 (1995–96)

| No. overall | No. in season | Title | Stardate | Directed by | Written by | Original air date | Prod. code | Viewers (millions) |
| 73 | 1 | "The Way of the Warrior" | 49011.4 | James L. Conway | Ira Steven Behr & Robert Hewitt Wolfe | September 30, 1995 (1995-09-30) | 40510-718 (40510-473, 40510-474) | 8.5 |
| 74 | 2 | "The Way of the Warrior" | 49011.4 | James L. Conway | Ira Steven Behr & Robert Hewitt Wolfe | September 30, 1995 (1995-09-30) | 40510-718 (40510-473, 40510-474) | 8.5 |
| A Klingon fleet arrives on its way to expand the Klingon Empire at the expense of the Cardassians in the face of the Dominion threat, and Worf is brought to DS9 to negotiate. |||||||||
| 75 | 3 | "The Visitor" | 49037.7 | David Livingston | Michael Taylor | October 7, 1995 (1995-10-07) | 40510-476 | 6.9 |
| An elderly Jake Sisko relates the story of how he lost his father to a temporal displacement accident. |||||||||
| 76 | 4 | "Hippocratic Oath" | 49066.5 | René Auberjonois | Story by : Nicholas Corea & Lisa Klink Teleplay by : Lisa Klink | October 14, 1995 (1995-10-14) | 40510-475 | 7.7 |
| Bashir is captured, with Chief O'Brien, by a rogue group of Jem'Hadar who are attempting to overcome their genetic addiction to Ketracel White. Their leader, Goran'Agar, is able to survive without it and forces Bashir to find out why. Worf is finding it difficult to leave security matters to Security Chief Odo. |||||||||
| 77 | 5 | "Indiscretion" | 49122.4 | LeVar Burton | Story by : Toni Marberry & Jack Treviño Teleplay by : Nicholas Corea | October 21, 1995 (1995-10-21) | 40510-477 | 7.2 |
| Forced to bring along Dukat on a personal mission to investigate the fate of the Cardassian prison ship Ravinok, which disappeared six years ago, Kira discovers the real reason her old enemy wants to accompany her. Sisko appears to have reservations about Kasidy Yates' coming to live on the station. |||||||||
| 78 | 6 | "Rejoined" | 49195.5 | Avery Brooks | Story by : René Echevarria Teleplay by : Ronald D. Moore & René Echevarria | October 28, 1995 (1995-10-28) | 40510-478 | 7.0 |
| Dax is reunited with Lenara Kahn, whose previous host was the wife of one of Dax's former hosts, Torias Dax, and the two struggle with their feelings for one another. |||||||||
| 79 | 7 | "Starship Down" | 49263.5 | Alexander Singer | David Alan Mack & John J. Ordover | November 4, 1995 (1995-11-04) | 40510-479 | 7.7 |
| The USS Defiant becomes trapped in the atmosphere of a gas giant while battling with the Jem'Hadar. |||||||||
| 80 | 8 | "Little Green Men" | 49201.3 | James L. Conway | Story by : Toni Marberry & Jack Treviño Teleplay by : Ira Steven Behr & Robert Hewitt Wolfe | November 11, 1995 (1995-11-11) | 40510-480 | 7.1 |
| Quark, Rom, Nog and Odo are accidentally thrust back in time to Roswell, New Mexico, Earth, in 1947. |||||||||
| 81 | 9 | "The Sword of Kahless" | 49289 | LeVar Burton | Story by : Richard Danus Teleplay by : Hans Beimler | November 18, 1995 (1995-11-18) | 40510-481 | 6.9 |
| Worf, Dax and a revered Klingon Dahar master, Kor, search for the Sword of Kahless to unite the Klingon Empire. |||||||||
| 82 | 10 | "Our Man Bashir" | 49300.7 | Winrich Kolbe | Story by : Robert Gillan Teleplay by : Ronald D. Moore | November 25, 1995 (1995-11-25) | 40510-482 | 6.8 |
| Bashir plays a 1960s secret agent in a holosuite, when Garak unexpectedly intrudes, but his help is needed when the DS9 computer uses the holosuite to store the patterns of other crew members during a transporter accident. |||||||||
| 83 | 11 | "Homefront" | 49370.0 | David Livingston | Ira Steven Behr & Robert Hewitt Wolfe | December 30, 1995 (1995-12-30) | 40510-483 | 6.8 |
| Sisko and Odo are brought to Earth when it's suspected Changelings are infiltrating Starfleet. (Part 1 of 2) |||||||||
| 84 | 12 | "Paradise Lost" | 49482.3 | Reza Badiyi | Story by : Ronald D. Moore Teleplay by : Ira Steven Behr & Robert Hewitt Wolfe | January 6, 1996 (1996-01-06) | 40510-484 | 6.8 |
| As Sisko and Odo prepare for a Dominion invasion, they discover a plot to place the Federation under military control. (Part 2 of 2) |||||||||
| 85 | 13 | "Crossfire" | 49517.3 | Les Landau | René Echevarria | January 27, 1996 (1996-01-27) | 40510-485 | 7.0 |
| Odo's hidden feelings for Kira surface when the visiting Bajoran First Minister, Shakaar Edon, begins to court her. |||||||||
| 86 | 14 | "Return to Grace" | 49534.2 | Jonathan West | Story by : Tom Benko Teleplay by : Hans Beimler | February 3, 1996 (1996-02-03) | 40510-486 | 6.5 |
| Dukat seeks Kira's help in regaining his rank in the Cardassian Union. |||||||||
| 87 | 15 | "Sons of Mogh" | 49556.2 | David Livingston | Ronald D. Moore | February 10, 1996 (1996-02-10) | 40510-487 | 7.3 |
| Cast out of Klingon society because of Worf's dishonor, his brother, Kurn, asks Worf to kill him. Kira and O'Brien investigate a mysterious high-energy discharge just outside Bajoran space. |||||||||
| 88 | 16 | "Bar Association" | 49565.1 | LeVar Burton | Story by : Barbara J. Lee & Jenifer A. Lee Teleplay by : Robert Hewitt Wolfe & Ira Steven Behr | February 17, 1996 (1996-02-17) | 40510-488 | 6.7 |
| After he nearly dies because his contract kept him from seeking medical help, Rom organizes the Guild of Restaurant and Casino employees, a union for Quark's downtrodden staff, and they go on strike when their demands for fairer treatment are rejected. |||||||||
| 89 | 17 | "Accession" | 49600.7 | Les Landau | Jane Espenson | February 24, 1996 (1996-02-24) | 40510-489 | 6.5 |
| A famous Bajoran poet, Akorem Laan, who disappeared over 200 years ago, appears from the wormhole and convinces Sisko that he is the true Emissary, but when he announces a return to the pre-occupation caste system, Sisko points out it would disqualify Bajor for membership in The Federation. O'Brien is less than enthusiastic when Keiko announces she's expecting. |||||||||
| 90 | 18 | "Rules of Engagement" | 49665.3 | LeVar Burton | Story by : David Weddle & Bradley Thompson Teleplay by : Ronald D. Moore | April 6, 1996 (1996-04-06) | 40510-490 | 5.8 |
| Worf accidentally destroys a civilian ship during battle and faces a hearing to determine whether he should be extradited to the Klingon Empire. |||||||||
| 91 | 19 | "Hard Time" | 49680.5 | Alexander Singer | Story by : Daniel Keys Moran & Lynn Barker Teleplay by : Robert Hewitt Wolfe | April 13, 1996 (1996-04-13) | 40510-491 | 5.7 |
| O'Brien's mind has been altered to create memories of being incarcerated for twenty years on an alien world on charges of espionage and sedition. |||||||||
| 92 | 20 | "Shattered Mirror" | 49699.1 | James L. Conway | Ira Steven Behr & Hans Beimler | April 20, 1996 (1996-04-20) | 40510-492 | 6.5 |
| Sisko attempts to rescue Jake after he is lured into the war-torn Mirror Universe by his mother's living counterpart. |||||||||
| 93 | 21 | "The Muse" | 49702.2 | David Livingston | Story by : René Echevarria & Majel Barrett-Roddenberry Teleplay by : René Echevarria | April 27, 1996 (1996-04-27) | 40510-493 | 5.3 |
| While Odo assists a pregnant Lwaxana Troi, Jake falls under the spell of a mysterious woman, Onaya. |||||||||
| 94 | 22 | "For the Cause" | 49729.8 | James L. Conway | Story by : Mark Gehred-O'Connell Teleplay by : Ronald D. Moore | May 4, 1996 (1996-05-04) | 40510-494 | 5.6 |
| Sisko learns that his girlfriend Kasidy might be a Maquis smuggler. Garak has taken interest in Gul Dukat's half Bajoran daughter, Tora Ziyal. |||||||||
| 95 | 23 | "To the Death" | 49904.2 | LeVar Burton | Ira Steven Behr & Robert Hewitt Wolfe | May 11, 1996 (1996-05-11) | 40510-495 | 6.0 |
| Sisko and the Defiant crew join forces with the Jem'Hadar to stop a group of Jem'Hadar renegades from gaining power using an Iconian Gateway discovered in the Gamma Quadrant. |||||||||
| 96 | 24 | "The Quickening" | 49909.7 | René Auberjonois | Naren Shankar | May 18, 1996 (1996-05-18) | 40510-496 | 5.7 |
| Bashir tries to free the population of a Gamma Quadrant world in the Teplan system of an engineered disease left by the Dominion 200 years previously. |||||||||
| 97 | 25 | "Body Parts" | 49930.3 | Avery Brooks | Story by : Louis P. DeSantis & Robert J. Bolivar Teleplay by : Hans Beimler | June 8, 1996 (1996-06-08) | 40510-497 | 5.1 |
| Quark is diagnosed with a terminal disease, Dorek's Syndrome, and given a week to live. Due to an unavoidable accident on the runabout Volga, Miles and Keiko's unborn baby is transferred to Major Kira by Dr. Bashir. |||||||||
| 98 | 26 | "Broken Link" | 49962.4 | Les Landau | Story by : George A. Brozak Teleplay by : Ira Steven Behr & Robert Hewitt Wolfe | June 15, 1996 (1996-06-15) | 40510-498 | 6.2 |
| Odo collapses and is taken to the infirmary. Bashir discovers Odo is losing his ability to maintain solid form. |||||||||

### Season 5 (1996–97)

| No. overall | No. in season | Title | Stardate | Directed by | Written by | Original air date | Prod. code | Viewers (millions) |
| 99 | 1 | "Apocalypse Rising" | 50015.9 | James L. Conway | Ira Steven Behr and Robert Hewitt Wolfe | September 30, 1996 (1996-09-30) | 40510-499 | 5.6 |
| Starfleet assigns Sisko to expose the Changeling infiltrator in the Klingon Empire. |||||||||
| 100 | 2 | "The Ship" | 50049.3 | Kim Friedman | Story by : Pam Wigginton & Rick Cason Teleplay by : Hans Beimler | October 7, 1996 (1996-10-07) | 40510-500 | 6.0 |
| While exploring in the Gamma Quadrant, Sisko, Dax, Worf and O'Brien see a Jem'Hadar warship crash on a planet's surface. Odo arrests Dr. Bashir and Quark. |||||||||
| 101 | 3 | "Looking for par'Mach in All the Wrong Places" | 50061.2 | Andrew J. Robinson | Ronald D. Moore | October 14, 1996 (1996-10-14) | 40510-501 | 5.7 |
| Worf finds himself attracted to Grilka, Quark's ex wife (episode 3.3), when she visits the station. |||||||||
| 102 | 4 | "...Nor the Battle to the Strong" | 50098.7 | Kim Friedman | Story by : Brice R. Parker Teleplay by : René Echevarria | October 21, 1996 (1996-10-21) | 40510-502 | 5.0 |
| Dr. Bashir has been away at a conference and Jake Sisko has accompanied him to research a profile he is writing about the doctor. Returning in a runabout, they get a distress call from a Federation colony under Klingon attack. |||||||||
| 103 | 5 | "The Assignment" | 50124.3 | Allan Kroeker | Story by : David R. Long & Robert Lederman Teleplay by : David Weddle & Bradley Thompson | October 28, 1996 (1996-10-28) | 40510-504 | N/A |
| Keiko returns from a journey and informs O'Brien that she is really an entity that has taken possession of his wife's body. |||||||||
| 104 | 6 | "Trials and Tribble-ations" | 4523.7 | Jonathan West | Story by : Ira Steven Behr, Hans Beimler & Robert Hewitt Wolfe Teleplay by : Ronald D. Moore & René Echevarria | November 4, 1996 (1996-11-04) | 40510-503 | 7.7 |
| Darvin, a disgraced Klingon spy, travels back in time. The DS9 crew must prevent him from altering the timeline. Based on the original Star Trek episode "The Trouble with Tribbles" by David Gerrold. |||||||||
| 105 | 7 | "Let He Who Is Without Sin..." | 50136.7 | René Auberjonois | Robert Hewitt Wolfe and Ira Steven Behr | November 11, 1996 (1996-11-11) | 40510-505 | 7.0 |
| Worf and Dax vacation on the pleasure planet, Risa, and encounter unexpected dangers. |||||||||
| 106 | 8 | "Things Past" | 50144.6 | LeVar Burton | Michael Taylor | November 18, 1996 (1996-11-18) | 40510-506 | 6.0 |
| Sisko, Odo, Dax and Garak are found unconscious. While Bashir attempts to revive their bodies, the four wake up during the Cardassian occupation of Bajor several years earlier. |||||||||
| 107 | 9 | "The Ascent" | 50245.2 | Allan Kroeker | Ira Steven Behr and Robert Hewitt Wolfe | November 25, 1996 (1996-11-25) | 40510-507 | 6.0 |
| Forced to crash-land on a desolate planet, Odo and Quark must climb a mountain to transmit a distress signal. Jake and Nog (temporarily back at DS9) find sharing quarters isn't as enjoyable as they thought it would be. |||||||||
| 108 | 10 | "Rapture" | 50387.9 | Jonathan West | Story by : L.J. Strom Teleplay by : Hans Beimler | December 30, 1996 (1996-12-30) | 40510-508 | 6.0 |
| An accident causes Sisko to have prophetic visions. When he finds an ancient Bajoran city, lost for 20,000 years, Kai Winn reconsiders her attitude towards him. |||||||||
| 109 | 11 | "The Darkness and the Light" | 50416.2 | Mike Vejar | Story by : Bryan Fuller Teleplay by : Ronald D. Moore | January 6, 1997 (1997-01-06) | 40510-509 | 6.0 |
| Someone is killing former members of Kira's resistance cell and she might be next. |||||||||
| 110 | 12 | "The Begotten" | 50430.1 | Jesús Salvador Treviño | René Echevarria | January 27, 1997 (1997-01-27) | 40510-510 | 6.2 |
| When Quark discovers an infant Changeling, it has a profound effect on Odo. Meanwhile, Kira goes into labor. |||||||||
| 111 | 13 | "For the Uniform" | 50485.2 | Victor Lobl | Peter Allan Fields | February 3, 1997 (1997-02-03) | 40510-511 | 6.0 |
| Michael Eddington returns and Sisko becomes obsessed with catching him. |||||||||
| 112 | 14 | "In Purgatory's Shadow" | 50560.1 | Gabrielle Beaumont | Robert Hewitt Wolfe and Ira Steven Behr | February 10, 1997 (1997-02-10) | 40510-512 | 6.7 |
| Worf and Garak journey to the Gamma Quadrant to investigate a coded Cardassian message. (Part 1 of 2) |||||||||
| 113 | 15 | "By Inferno's Light" | 50564.2 | Les Landau | Ira Steven Behr and Robert Hewitt Wolfe | February 17, 1997 (1997-02-17) | 40510-513 | 6.2 |
| Gul Dukat aligns the Cardassians with the Dominion. The station must deal with a Changeling infiltrator. (Part 2 of 2) |||||||||
| 114 | 16 | "Doctor Bashir, I Presume?" | 50590.1 | David Livingston | Story by : Jimmy Diggs Teleplay by : Ronald D. Moore | February 24, 1997 (1997-02-24) | 40510-514 | 5.6 |
| Julian Bashir is selected to become the model for a Long-term Medical Hologram, until a family secret is revealed. Rom has great difficulty in telling Leeta something. |||||||||
| 115 | 17 | "A Simple Investigation" | 50606.6 | John T. Kretchmer | René Echevarria | March 31, 1997 (1997-03-31) | 40510-515 | 5.2 |
| Odo falls in love with a woman, Arissa, involved in the Orion Syndicate. |||||||||
| 116 | 18 | "Business as Usual" | 50675.5 | Siddig El Fadil | Bradley Thompson and David Weddle | April 7, 1997 (1997-04-07) | 40510-516 | 5.3 |
| Quark's cousin Gaila, knowing Quark is desperate for funds, takes him on as a junior partner in his highly lucrative arms dealing business. With his mother Keiko away dealing with a plague on Bajor, Yoshi O'Brien will only stop crying when Miles holds him, making things difficult. |||||||||
| 117 | 19 | "Ties of Blood and Water" | 50712.5 | Avery Brooks | Story by : Edmund Newton & Robbin L. Slocum Teleplay by : Robert Hewitt Wolfe | April 14, 1997 (1997-04-14) | 40510-517 | N/A |
| Tekeny Ghemor ("Second Skin") arrives on Deep Space Nine and reveals that he is dying. |||||||||
| 118 | 20 | "Ferengi Love Songs" | 50701.2 | René Auberjonois | Ira Steven Behr and Hans Beimler | April 21, 1997 (1997-04-21) | 40510-518 | 4.8 |
| At the end of his rope, Quark returns home and discovers Moogie has a secret lover. |||||||||
| 119 | 21 | "Soldiers of the Empire" | 50839.2 | LeVar Burton | Ronald D. Moore | April 28, 1997 (1997-04-28) | 40510-519 | 5.2 |
| Martok, Worf and Dax go on a mission aboard a Klingon ship to search for a missing Klingon vessel. However, Martok's uneasiness about battle, a result of his captivity, affects his crew's morale. |||||||||
| 120 | 22 | "Children of Time" | 50814.2 | Allan Kroeker | Story by : Gary Holland and Ethan H. Calk Teleplay by : René Echevarria | May 5, 1997 (1997-05-05) | 40510-520 | 5.5 |
| An accident causes the crew to meet their own descendants — and presents them with an ethical dilemma. |||||||||
| 121 | 23 | "Blaze of Glory" | 50862.4 | Kim Friedman | Robert Hewitt Wolfe and Ira Steven Behr | May 12, 1997 (1997-05-12) | 40510-521 | N/A |
| An act of desperation by the Maquis could plunge the Federation into war: The Maquis have thirty cloaked missiles heading to Cardassia. |||||||||
| 122 | 24 | "Empok Nor" | 50901.7 | Mike Vejar | Story by : Bryan Fuller Teleplay by : Hans Beimler | May 19, 1997 (1997-05-19) | 40510-522 | 4.9 |
| O'Brien, Garak, Nog and an engineering team go to Deep Space Nine's abandoned sister space station, Empok Nor, to salvage components. The away team soon discover that all is not as it seems. |||||||||
| 123 | 25 | "In the Cards" | 50929.4 | Michael Dorn | Story by : Truly Barr Clark & Scott J. Neal Teleplay by : Ronald D. Moore | June 9, 1997 (1997-06-09) | 40510-523 | 4.5 |
| Jake wants to give his father a present to cheer him up, a 1951 Willie Mays baseball card. He enlists Nog to help him obtain it, but they run into complications with a mysterious geneticist, Dr. Giger. Kai Winn, worried over the prospect of a Federation/Dominion war and its effects on Bajor, meets with Dominion representative Weyoun. |||||||||
| 124 | 26 | "Call to Arms" | 50975.2 | Allan Kroeker | Ira Steven Behr and Robert Hewitt Wolfe | June 16, 1997 (1997-06-16) | 40510-524 | 5.2 |
| Faced with the realization that the Dominion are taking over the Alpha Quadrant, Sisko decides to mine the entrance to the wormhole with self-replicating cloaked mines, thus beginning the Dominion War. |||||||||

### Season 6 (1997–98)

| No. overall | No. in season | Title | Stardate | Directed by | Written by | Original air date | Prod. code | Viewers (millions) |
| 125 | 1 | "A Time to Stand" | Unknown | Allan Kroeker | Ira Steven Behr & Hans Beimler | September 27, 1997 (1997-09-27) | 40510-525 | 5.4 |
| Three months into the war, DS9 is still under Dominion control. Sisko and his crew are given a mission to destroy a vital Ketracel White facility deep in Dominion space using a captured Jem'Hadar ship. Jake is working for the Federation News Service. Odo is head of Terok Nor's security supported by the Vorta Weyoun. |||||||||
| 126 | 2 | "Rocks and Shoals" | 51107.2 | Mike Vejar | Ronald D. Moore | October 4, 1997 (1997-10-04) | 40510-527 | 5.2 |
| Sisko and his tired crew crash on a planet where they encounter a band of Jem'Hadar. |||||||||
| 127 | 3 | "Sons and Daughters" | Unknown | Jesús Salvador Treviño | Bradley Thompson & David Weddle | October 11, 1997 (1997-10-11) | 40510-526 | 4.8 |
| While on General Martok's ship Worf is reunited with his estranged son, Alexander. |||||||||
| 128 | 4 | "Behind the Lines" | 51149.5 | LeVar Burton | René Echevarria | October 18, 1997 (1997-10-18) | 40510-528 | 5.1 |
| Sisko creates a risky plan to disable a critical Dominion sensor array able to see five sectors out, while on Terok Nor, Kira, Jake, Rom and Odo seek to undermine the Cardassian/Dominion Alliance. |||||||||
| 129 | 5 | "Favor the Bold" | Unknown | Winrich Kolbe | Ira Steven Behr & Hans Beimler | October 25, 1997 (1997-10-25) | 40510-529 | 6.0 |
| Learning of thousands of Dominion reinforcements gathering in the Gamma Quadrant, Sisko initiates a plan to retake Deep Space Nine and secure the wormhole before the minefield is detonated. (Part 1 of 2) |||||||||
| 130 | 6 | "Sacrifice of Angels" | Unknown | Allan Kroeker | Ira Steven Behr & Hans Beimler | November 1, 1997 (1997-11-01) | 40510-530 | 6.4 |
| Sisko commands the Defiant and 600 Federation ships against a Dominion/Cardassian armada to retake Deep Space Nine. Damar has Kira, Jake and Leeta arrested. (Part 2 of 2) |||||||||
| 131 | 7 | "You Are Cordially Invited" | 51247.5 | David Livingston | Ronald D. Moore | November 8, 1997 (1997-11-08) | 40510-531 | 6.5 |
| Worf's plans for a traditional Klingon wedding hinge on Martok's demanding wife, Sirella, accepting Dax into their family. |||||||||
| 132 | 8 | "Resurrection" | Unknown | LeVar Burton | Michael Taylor | November 15, 1997 (1997-11-15) | 40510-532 | 5.2 |
| The Mirror Universe counterpart of Kira's dead love, Vedek Bareil, takes her hostage on Deep Space Nine as he is running from the evil Alliance of his universe. |||||||||
| 133 | 9 | "Statistical Probabilities" | Unknown | Anson Williams | Story by : Pam Pietroforte Teleplay by : René Echevarria | November 22, 1997 (1997-11-22) | 40510-533 | 5.1 |
| Bashir attempts to reintegrate genetically engineered misfits into society, but they are asked by Starfleet to become a think tank when they provide insightful analysis of upcoming Dominion peace talks. |||||||||
| 134 | 10 | "The Magnificent Ferengi" | Unknown | Chip Chalmers | Ira Steven Behr & Hans Beimler | December 27, 1997 (1997-12-27) | 40510-534 | 5.0 |
| Quark mounts a rescue mission when his mother, Ishka, is captured by the Dominion and Grand Nagus Zek offers a reward for her return. |||||||||
| 135 | 11 | "Waltz" | 51413.6 | René Auberjonois | Ronald D. Moore | January 3, 1998 (1998-01-03) | 40510-535 | 4.9 |
| An attack on the Starfleet ship carrying Gul Dukat to a hearing for war crimes, as well as Captain Sisko who is to testify at the hearing, leaves the two of them stranded on a deserted planet together. |||||||||
| 136 | 12 | "Who Mourns for Morn?" | Unknown | Victor Lobl | Mark Gehred-O'Connell | January 31, 1998 (1998-01-31) | 40510-536 | 5.3 |
| Morn is killed in an ion storm and Sisko informs Quark that Morn left his entire estate to him. But Quark has a little competition. |||||||||
| 137 | 13 | "Far Beyond the Stars" | Unknown | Avery Brooks | Story by : Marc Scott Zicree Teleplay by : Ira Steven Behr & Hans Beimler | February 7, 1998 (1998-02-07) | 40510-538 | 4.8 |
| As Sisko considers leaving Starfleet due to the destruction of Captain Swofford's ship, the Cortez, he has a vision of himself as a science fiction writer in the 1950s. |||||||||
| 138 | 14 | "One Little Ship" | 51474.2 | Allan Kroeker | David Weddle & Bradley Thompson | February 14, 1998 (1998-02-14) | 40510-537 | 5.1 |
| Dax, O'Brien and Bashir board a runabout, which is shrunken to four inches long as they investigate a rare subspace compression phenomenon. |||||||||
| 139 | 15 | "Honor Among Thieves" | Unknown | Allan Eastman | Story by : Philip Kim Teleplay by : René Echevarria | February 21, 1998 (1998-02-21) | 40510-539 | 4.6 |
| Starfleet Intelligence recruits Chief O'Brien to infiltrate the Orion Syndicate to find a Starfleet informant. |||||||||
| 140 | 16 | "Change of Heart" | 51597.2 | David Livingston | Ronald D. Moore | February 28, 1998 (1998-02-28) | 40510-540 | 5.5 |
| When Jadzia Dax is critically injured on an away mission, Worf must choose between saving his wife or completing their assignment. O'Brien becomes obsessed with beating Quark at Tongo. |||||||||
| 141 | 17 | "Wrongs Darker Than Death or Night" | Unknown | Jonathan West | Ira Steven Behr & Hans Beimler | March 28, 1998 (1998-03-28) | 40510-541 | 4.6 |
| When Dukat tells Kira that her mother, Kira Meru, did not die when Nerys was three, but was actually Dukat's lover, Kira goes into the past using the Bajoran Orb of Time to find the truth. |||||||||
| 142 | 18 | "Inquisition" | Unknown | Michael Dorn | Bradley Thompson & David Weddle | April 4, 1998 (1998-04-04) | 40510-542 | 4.7 |
| Dr Bashir is busy wrapping up unfinished tasks prior to departing DS9 to attend a medical conference. Just prior to his departure, an Internal Affairs unit under the command of an individual named Sloan, arrive and announce they will be interviewing all the senior staff. Things take a worrying turn for the good doctor when he realises that he is the subject of the investigation and Sloan accuses him of spying for the Dominion. |||||||||
| 143 | 19 | "In the Pale Moonlight" | 51721.3 | Victor Lobl | Story by : Peter Allan Fields Teleplay by : Michael Taylor | April 11, 1998 (1998-04-11) | 40510-543 | 4.8 |
| Weary of posting yet another weekly casualty list, Captain Sisko becomes determined to get the Romulans to join the war against the Dominion. He seeks the shady expertise of Garak to help achieve his objective. But the bloody reality of the phrase “whatever it takes”, soon finds Sisko’s ethics being compromised to breaking point in pursuit of his goal. |||||||||
| 144 | 20 | "His Way" | Unknown | Allan Kroeker | Ira Steven Behr & Hans Beimler | April 18, 1998 (1998-04-18) | 40510-544 | 4.3 |
| Bashir shows off a new Holosuite program of a martini lounge with a 1960s Vegas singer named Vic Fontaine who is very perceptive; and gives advice to Odo when Kira visits her ex-lover Shakaar. |||||||||
| 145 | 21 | "The Reckoning" | Unknown | Jesús Salvador Treviño | Story by : Harry M. Werksman & Gabrielle Stanton Teleplay by : David Weddle & Bradley Thompson | April 25, 1998 (1998-04-25) | 40510-545 | 4.2 |
| Sisko is called to Bajor when an ancient tablet addressing the Emissary is discovered at B'hala. |||||||||
| 146 | 22 | "Valiant" | 51825.4 | Mike Vejar | Ronald D. Moore | May 2, 1998 (1998-05-02) | 40510-546 | 4.6 |
| Jake and Nog come under attack by the Jem'Hadar and are rescued by a rogue Defiant class starship, the Valiant, under the command of Starfleet Red Squadron cadets. |||||||||
| 147 | 23 | "Profit and Lace" | Unknown | Siddig El Faddil | Ira Steven Behr & Hans Beimler | May 9, 1998 (1998-05-09) | 40510-547 | 4.2 |
| Quark helps out when Zek's status as the Ferengi Grand Nagus is put in jeopardy by proposing equal rights for Ferengi females. |||||||||
| 148 | 24 | "Time's Orphan" | Unknown | Allan Kroeker | Story by : Joe Menosky Teleplay by : David Weddle & Bradley Thompson | May 16, 1998 (1998-05-16) | 40510-548 | 4.6 |
| Molly O'Brien disappears in a vortex and reappears as an 18-year-old woman, but she is now feral, bringing great difficulty for her parents. |||||||||
| 149 | 25 | "The Sound of Her Voice" | 51948.3 | Winrich Kolbe | Story by : Pam Pietroforte Teleplay by : Ronald D. Moore | June 6, 1998 (1998-06-06) | 40510-549 | 4.1 |
| The Defiant picks up a distress call from Captain Lisa Cusak, whose escape pod has crashed on a remote planet following the destruction of her ship, the Olympia. |||||||||
| 150 | 26 | "Tears of the Prophets" | Unknown | Allan Kroeker | Ira Steven Behr & Hans Beimler | June 13, 1998 (1998-06-13) | 40510-550 | 4.1 |
| Starfleet Command begins an offensive against the Dominion, and Sisko is chosen to lead the invasion of Cardassia, but the Cardassian/Dominion Alliance has secretly reinforced their borders with unmanned orbital weapons platforms. |||||||||

### Season 7 (1998–99)

| No. overall | No. in season | Title | Stardate | Directed by | Written by | Original air date | Prod. code | Viewers (millions) |
| 151 | 1 | "Image in the Sand" | Unknown | Les Landau | Ira Steven Behr & Hans Beimler | September 30, 1998 (1998-09-30) | 40510-551 | 4.4 |
| With the Bajoran wormhole collapsed, Sisko struggles for a way to contact the Bajoran Prophets. The Romulans receive permission from the Bajorans to open a military hospital on the moon Derna. General Martok offers Worf an opportunity to gain admission to Sto'Vo'Kor for Jadzia. |||||||||
| 152 | 2 | "Shadows and Symbols" | 52152.6 | Allan Kroeker | Ira Steven Behr & Hans Beimler | October 7, 1998 (1998-10-07) | 40510-552 | 4.2 |
| A new Dax appears on the scene. Sisko's quest leads him to the truth about his existence. The discovery that the Romulan hospital is heavily armed leads Colonel Kira to set up a blockade of Derna. Bashir, O'Brien and, surprisingly, Quark join Worf and Martok on a dangerous mission to destroy the Dominion shipyard. |||||||||
| 153 | 3 | "Afterimage" | Unknown | Les Landau | René Echevarria | October 14, 1998 (1998-10-14) | 40510-553 | 4.3 |
| Everyone who knew Jadzia Dax reacts strongly to Ezri Dax's presence, particularly Worf. Garak suffers from bad attacks of claustrophobia. |||||||||
| 154 | 4 | "Take Me Out to the Holosuite" | Unknown | Chip Chalmers | Ronald D. Moore | October 21, 1998 (1998-10-21) | 40510-554 | 4.7 |
| Sisko must train his staff to play baseball when the Vulcan Captain Solok, an old rival of his, challenges Sisko to a game while his ship is being repaired. |||||||||
| 155 | 5 | "Chrysalis" | Unknown | Jonathan West | René Echevarria | October 28, 1998 (1998-10-28) | 40510-555 | 4.3 |
| Bashir falls for a genetically enhanced patient, Sarina Douglas, that he brought out of a catatonic state using an experimental medical procedure. |||||||||
| 156 | 6 | "Treachery, Faith and the Great River" | Unknown | Steve Posey | Story by : Philip Kim Teleplay by : David Weddle & Bradley Thompson | November 4, 1998 (1998-11-04) | 40510-556 | 4.8 |
| A Vorta defector, Weyoun-6, gives Odo valuable information in exchange for asylum. Weyoun-7, the next clone in the series, pursues them. Nog engages in a series of barters to get a Graviton Stabilizer for Miles. |||||||||
| 157 | 7 | "Once More unto the Breach" | Unknown | Allan Kroeker | Ronald D. Moore | November 11, 1998 (1998-11-11) | 40510-557 | 4.5 |
| Kor (Ep 2.19, "Blood Oath" & 4.9, "The Sword of Kahless"), an aging Klingon hero, asks Worf to find him a battle assignment. Martok plans a "cavalry raid" of five birds of prey, hitting several key targets behind enemy lines to throw them off balance. |||||||||
| 158 | 8 | "The Siege of AR-558" | Unknown | Winrich Kolbe | Ira Steven Behr & Hans Beimler | November 18, 1998 (1998-11-18) | 40510-558 | 4.5 |
| Sisko and crew relieve Starfleet troops under siege by Jem'Hadar at a key communications outpost, AR-558, the largest Dominion communications array in the sector. |||||||||
| 159 | 9 | "Covenant" | Unknown | John Kretchmer | René Echevarria | November 25, 1998 (1998-11-25) | 40510-559 | 4.4 |
| Dukat, now a religious leader of a Bajoran Pah-Wraith cult, holds Kira hostage. Mika, one of Dukat's followers, gives birth to a half-Cardassian child. |||||||||
| 160 | 10 | "It's Only a Paper Moon" | 52235.7 | Anson Williams | Story by : David Alan Mack & John J. Ordover Teleplay by : Ronald D. Moore | December 30, 1998 (1998-12-30) | 40510-560 | 4.3 |
| Nog struggles with PTSD from the traumatic battle of AR-558 where he lost his leg. So, he begins living with Vic Fontaine. |||||||||
| 161 | 11 | "Prodigal Daughter" | Unknown | Victor Lobl | David Weddle & Bradley Thompson | January 6, 1999 (1999-01-06) | 40510-561 | 4.3 |
| Ezri goes to New Sydney to find O'Brien and uncovers some disturbing family secrets. Miles goes in search of the widow of Liam Bilby, Morica Bilby, whom he befriended in an undercover operation. |||||||||
| 162 | 12 | "The Emperor's New Cloak" | Unknown | LeVar Burton | Ira Steven Behr & Hans Beimler | February 3, 1999 (1999-02-03) | 40510-562 | 4.6 |
| Quark and Rom cross into the alternate universe to rescue Grand Nagus Zek. |||||||||
| 163 | 13 | "Field of Fire" | Unknown | Tony Dow | Robert Hewitt Wolfe | February 10, 1999 (1999-02-10) | 40510-563 | 4.1 |
| Ezri summons Joran, a homicidal Dax incarnation from her past, for help in understanding the mind of a serial killer loose on the station. |||||||||
| 164 | 14 | "Chimera" | Unknown | Steve Posey | René Echevarria | February 17, 1999 (1999-02-17) | 40510-564 | 4.3 |
| A Changeling, Laas, asks Odo to leave the station and join his search for other shapeshifters. |||||||||
| 165 | 15 | "Badda-Bing Badda-Bang" | Unknown | Mike Vejar | Ira Steven Behr & Hans Beimler | February 24, 1999 (1999-02-24) | 40510-566 | 4.1 |
| The crew attempt to help Vic Fontaine when Vic's hotel is bought by mobsters Frankie Eyes and Carl Zeemo. |||||||||
| 166 | 16 | "Inter Arma Enim Silent Leges" | Unknown | David Livingston | Ronald D. Moore | March 3, 1999 (1999-03-03) | 40510-565 | 4.1 |
| While attending a diplomatic conference on Romulus, Bashir becomes an unwilling pawn of Section 31. |||||||||
| 167 | 17 | "Penumbra" | 52576.2 | Steve Posey | René Echevarria | April 7, 1999 (1999-04-07) | 40510-567 | 4.4 |
| Ezri searches for a missing Worf; Sisko makes plans to marry Kasidy Yates. |||||||||
| 168 | 18 | "'Til Death Do Us Part" | Unknown | Winrich Kolbe | Bradley Thompson & David Weddle | April 14, 1999 (1999-04-14) | 40510-568 | 4.1 |
| Captured by the Breen, Ezri and Worf undergo mental torture. Sisko agonizes over his broken engagement. Kai Winn receives her first vision; she learns a messenger will be sent to her. It is a simple Bajoran farmer, who is actually Gul Dukat in disguise. |||||||||
| 169 | 19 | "Strange Bedfellows" | Unknown | René Auberjonois | Ronald D. Moore | April 21, 1999 (1999-04-21) | 40510-569 | 4.2 |
| An alliance is born between the Dominion and the Breen which will prove devastating for the Federation. Ezri and Worf are sentenced to death on Cardassia. Initially horrified, Kai Winn eventually accepts her visions are from the Pah Wraiths. |||||||||
| 170 | 20 | "The Changing Face of Evil" | Unknown | Mike Vejar | Ira Steven Behr & Hans Beimler | April 28, 1999 (1999-04-28) | 40510-570 | 4.5 |
| The war reaches a crucial turning point when the Dominion retakes the Chin'Toka system, the only Allied foothold in enemy space. Winn learns that Dukat plans to release the Pah-Wraiths. Damar begins a revolt against the Dominion. |||||||||
| 171 | 21 | "When It Rains..." | Unknown | Michael Dorn | Story by : René Echevarria and Spike Steingasser Teleplay by : René Echevarria | May 5, 1999 (1999-05-05) | 40510-571 | 4.3 |
| Sisko orders Kira, Garak and Odo to Cardassia to assist Cardassians in resistance tactics as Damar's rebellion gains ground. Bashir makes a shocking discovery about the disease that is ravaging the Founders. Dukat's cover has been blown by Sobor. Gowron arrives on DS9. |||||||||
| 172 | 22 | "Tacking into the Wind" | Unknown | Mike Vejar | Ronald D. Moore | May 12, 1999 (1999-05-12) | 40510-572 | 4.4 |
| Kira masterminds a plot to steal a Breen energy-dampening weapon. Gowron's political vendetta against Martok is endangering the war effort and prompts Worf to instigate a power shift in the Klingon Empire. |||||||||
| 173 | 23 | "Extreme Measures" | 52645.7 | Steve Posey | David Weddle & Bradley Thompson | May 19, 1999 (1999-05-19) | 40510-573 | 4.4 |
| As Odo falls gravely ill to the shape-shifter disease, Bashir and O'Brien must get inside the mind of Luther Sloan, who holds Odo's cure. |||||||||
| 174 | 24 | "The Dogs of War" | 52861.3 | Avery Brooks | Story by : Peter Allan Fields Teleplay by : René Echevarria & Ronald D. Moore | May 26, 1999 (1999-05-26) | 40510-574 | 3.7 |
| Sisko takes command of a new ship. Kira, Damar, and Garak stumble into a Dominion ambush on Cardassia; they also discover the entire resistance organization has been destroyed. Ezri and Julian finally clear the air with each other. Grand Nagus Zek has an announcement to make, as does Kasidy Sisko. |||||||||
| 175 | 25 | "What You Leave Behind" | Unknown | Allan Kroeker | Ira Steven Behr & Hans Beimler | June 2, 1999 (1999-06-02) | 40510-749 (575–576) | 5.4 |
| 176 | 26 | "What You Leave Behind" | Unknown | Allan Kroeker | Ira Steven Behr & Hans Beimler | June 2, 1999 (1999-06-02) | 40510-749 (575–576) | 5.4 |
| Sisko leads the Federation/Klingon/Romulan alliance in the offensive on the Cardassian homeworld, aided by Damar's grassroots resistance campaign -- and a surprise, last-minute ally. Dukat and Winn journey to the fire caves to release the Pah'Wraiths. Originally shown as a two-hour series finale, but in syndication is shown as two episodes. |||||||||

## Reception

In 1999, Trek Nation's Greg Fuller said the series had been successful among its peers, writing: "Even when it became a near-serial show (usually, long-term serial shows are ratings disasters -- witness Babylon 5) airing in prime-time in less than 60 percent of the nation, DS9 managed well over a 4.0 average in its final two years. As a general rule, a syndicated show needs to maintain a 3.0 to be successful, DS9 always maintained that despite the strikes against it."
In 2019, CBR rated all 31 seasons (across seven series at that time, including the first season of Star Trek: Discovery) of the Star Trek franchise, separately ranking each season of each series. They rated Season 6 of Star Trek: Deep Space Nine as the very best season of any Star Trek season up to that time.

### CBR rankings

* 1 – Season 6
* 6 – Season 7
* 15 – Season 5
* 18 – Season 2
* 20 – Season 3
* 21 – Season 4
* 26 – Season 1
In 2016, The Washington Post called the Dominion war story arc in the later seasons of Star Trek: Deep Space Nine possibly the "richest narrative" of the Star Trek universe.