Click an episode for a synopsis
A reluctant Benjamin Sisko is assigned to command Deep Space Nine, a former Cardassian space station orbiting the planet Bajor - and a wormhole to the Gamma Quadrant.
- Emissary, Part I
Emissary, Part I
Commander Benjamin Sisko arrives on Deep Space Nine, where he has been assigned by Starfleet following the Cardassian withdrawl from Bajor.
As the Federation crew tries to get accustomed to their new surroundings, Sisko is confronted with a Bajoran secret.
- Emissary, Part II
Emissary, Part II
Sisko and Dax discover a wormhole to the Gamma Quadrant in Bajor's backyard, inhabited by noncorporeal entities that seek to learn about human life from the Commander.
The Cardassians threaten DS9 when one of their warships goes missing. - Past Prologue
Past Prologue
Kira must come to terms with her loyalties when a Bajoran terrorist asks for asylum on DS9 -- though his true motives remain a mystery.
- Babel
Babel
The station is struck by a mysterious virus that renders people unable to coherently communicate with others. - A Man Alone
A Man Alone
Sisko and Dax discover a wormhole to the Gamma Quadrant in Bajor's backyard, inhabited by noncorporeal entities that seek to learn about human life from the Commander. The Cardassians threaten DS9 when one of their warships goes missing. - Captive Pursuit
Captive Pursuit
An alien from the Gamma Quadrant visits Deep Space Nine for repairs, but he clearly holds a secret from which he is running. - Q-Less
Q-Less
Vash, a woman who has been stranded in the Gamma Quadrant for two years, arrives on the station -- and is followed by Q, a powerful alien entity who wants her to reconsider their broken relationship. - Dax
Dax
Dax is arrested and put on trial for a murder allegedly committed by her symbiant's former host. - The Passenger
The Passenger
The crew gives aid to a damaged prisoner transport ship, only to discover that the "deceased" prisoner has transferred his consciousness to another person. - Move Along Home
Move Along Home
Quark is challenged to an unusual game with an alien representative -- and discovers that Sisko, Kira, Bashir and Dax are trapped inside the game's virtual playing field.
- The Nagus
The Nagus
The leader of the Ferengi empire arrives on the station to conduct an important meeting about exploiting the Gamma Quadrant -- and stuns everyone in attendance when he appoints Quark as his successor. - Vortex
Vortex
Odo's newest prisoner promises to help him find a secret colony of changelings in the Gamma Quadrant -- if they can escape the alien ship that wants to destroy him. - Battle Lines
Battle Lines
Quark is challenged to an unusual game with an alien representative -- and discovers that Sisko, Kira, Bashir and Dax are trapped inside the game's virtual playing field. - The Storyteller
The Storyteller
O'Brien and Bashir visit a Bajoran village, where O'Brien is chosen to succeed the village elder who is responsible for saving the village from a hostile entity. Jake and Nog take an interest in a young Bajoran representative. - Progress
Progress
Kira must convince a stubborn Bajoran farmer to evacuate a moon that is about to be rendered inhospitable. Nog and Jake engage in a little business opportunity. - If Wishes Were Horses
If Wishes Were Horses
The station is plagued by a phenomenon that makes their imaginations manifest -- from Rumplestilskin to baseball legend Buck Buckai. - The Forsaken
The Forsaken
A group of alien ambassadors arrive on the station, including Lwaxana Troi -- who takes an immediate liking to Constable Odo. O'Brien fights a seemingly unwinnable battle with the station's computer system. - Dramatis Personae
Dramatis Personae
The mysterious destruction of a Klingon ship leads to a near mutiny on Deep Space Nine, as Kira and Sisko clash over a vessel suspected of transporting weapons material to the Cardassians. - Duet
Duet
When a Cardassian comes to DS9 seeking medical aid, Kira comes face-to-face with a man she suspects of being a genocidal war criminal.
- In the Hands of the Prophets
In the Hands of the Prophets
The arrival of Vedek Winn, a Bajoran spiritual leader, throws DS9 into chaos as tensions rise between the station's Bajorans and Federation personnel. O'Brien investigates a murder on the station.
Click an episode for a synopsis
The crew of DS9 continues to maintain a Federation presence in the hostile region, and discover a powerful new enemy in the Gamma Quadrant - The Dominion
- The Homecoming
The Homecoming
Kira and O'Brien attempt the rescue of Li Nalas, a Bajoran resistance hero, from a Cardassian prison colony, but he finds it difficult to adapt to life in the public eye. - The Circle
The Circle
Major Kira is relieved of her post on Deep Space Nine, and hopes to discover herself at Vedek Bariel's monastery. But when she is captured by a rogue Bajoran group that is planning a coup, Kira makes a disturbing discovery about her planet's leaders. - The Siege
The Siege
A small team of station personnel remain on DS9 after a station-wide evacuation, in an attempt to wrestle control of the station from the Bajoran coup. Kira and Dax try to reach the Bajoran government with evidence of the Cardassians' involvement. - Invasive Procedures
Invasive Procedures
A group of hostile aliens infiltrate the station, led by a Trill with a sinister agenda: to steal Dax's symbiant for himself. - Cardassians
Cardassians
A Cardassian war orphan visits the station with his adoptive Bajoran father, sparking a political controversy over where he truly belongs.
- Melora
Melora
DS9 is visited by a Starfleet scientist who grew up on a low-gravity planet, leaving her handicapped in normal gravity. Bashir takes a liking to her, and offers her the chance to leave her wheelchair behind forever. - Rules of Acquisition
Rules of Acquisition
Vash, a woman who has been stranded in the Gamma Quadrant for two years, arrives on the station -- and is followed by Q, a powerful alien entity who wants her to reconsider their broken relationship. - Necessary Evil
Necessary Evil
An assault on Quark sparks an investigation that brings up memories of Odo's first murder investigation years ago, when the station was occupied by the Cardassians. - Second Sight
Second Sight
A mysterious woman haunts Commander Sisko, who begins to fall in love with her -- only to discover that she may not be real at all.
- Sanctuary
Sanctuary
The station becomes home to a massive number of Skrreean refugees fleeing persecution in the Gamma Quadrant -- and who have become convinced that Bajor is their prophesied new home. - Rivals
Rivals
Quark's monopoly on the local gambling scene is challenged by Martus, an El-Aurian con man who has acquired a unique gaming device. The station's inhabitants suffer from unexplained waves of good and back luck. - The Alternate
The Alternate
When Odo's former Bajoran mentor leads him to potential evidence of his origins, a mysterious shape-shifting creature is set loose on the station. - Armageddon Game
Armageddon Game
Bashir and O'Brien help the T'Lani to destroy their supply of a catastrophic bio-mechanical weapon following a newly-declared peace, only to find themselves on the run when the entire science team is killed. - Whispers
Whispers
Chief O'Brien returns to Deep Space Nine following an assignment, and is forced to flee the station when he is convinced that everyone he knows has turned against him. - Paradise
Paradise
Sisko and O'Brien are stranded on a planet where the leader of the local colony is driven by her anti-technology philosophy -- and demands that they stay. - Shadowplay
Shadowplay
Dax and Odo discover a world in the Gamma Quadrant whose inhabitants are slowly vanishing -- and learn that the colony's true nature is not what it appears to be. - Playing God
Playing God
Jadzia Dax welcomes her first Trill initiate, and must face her own past when he fails to live up to expectations. - Profit and Loss
Profit and Loss
An old flame of Quark's -- a Cardassian revolutionary -- is forced to return to DS9, pursued by the military that she and her "students" are working to overthrow. - Blood Oath
Blood Oath
Three legendary Klingon warriors meet Dax for a final, glorious mission to take vengeance on an old enemy. But with their friend Kurzon dead, the Klingons are not eager to accept Jadzia. - The Maquis, Part I
The Maquis, Part I
The Federation and Cardassians must work together when it is discovered that the members of a colony ceded to the Cardassians have turned militant. - The Maquis, Part II
The Maquis, Part II
Commander Sisko must do battle with an old friend to stop the rogue Maquis from attacking Cardassian interests. - The Wire
The Wire
Dr. Bashir learns the true nature of Garak's past when the Cardassian tailor falls mysteriously ill, due to a device implanted by his people. - Crossover
Crossover
The wormhole throws Kira and Bashir into an alternate universe, where the Klingons and Cardassians are allies and Kira's corrupt twin rules the station with an iron fist. - The Collaborator
The Collaborator
On the eve of Bajor's election of the next Kai, Vedek Bareil is accused of collaborating with the Cardassians during the occupation and betraying over 40 people to their deaths. - Tribunal
Tribunal
Chief O'Brien is seized by the Cardassian government and put on trial for attempting to smuggle weapons to the Maquis -- but his verdict has already been determined. - The Jem'Hadar
The Jem'Hadar
On a school expedition to the Gamma Quadrant with Jake and Nog, Sisko and Quark are taken captive by a hostile warrior species who serve the Dominion, a powerful group that is assessing the Alpha Quadrant's threat to their interests.
Click an episode for a synopsis
Odo finds his people, and learns that they are the supreme rulers of the Dominion - an alliance of Gamma Quadrant worlds hostile to the Federation.
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The Search, Part I
The Search, Part I
Armed with a new Federation warship, the crew travels to the Gamma Quadrant on a mission to seek out and make contact with the leaders of the Dominion.
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The Search, Part II
The Search, Part II
Sisko and the station's crew face the end of their work on DS9 when the Federation negotiates an uneasy peace with the Dominion. Odo explores his origins after finally making contact with his people.
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The House of Quark
The House of Quark
After Quark accidentally kills a drunk Klingon in a brawl in his bar, Quark claims he fought the Klingon and won. His tall tale helps rebuild the dwindling clientel at his bar, and all seems to be going well until the family of the dead Klingon arrives on the Station.
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Equilibrium
Equilibrium
Dax starts suffering from severe hallucinations and black-outs. Concerned, Sisko and Bashir take her back to the Trill homeworld where they hope to find an answer to her plight. Jadzia's body seems to be rejecting the symbiont. Soon it becomes apparent that the Trill Symbiosis Commission authorities are hiding something.
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Second Skin
Second Skin
Kira is kidnapped by the Cardassians, who try to prove to her that she is really one of their people: Iliana Ghemor of the Obsidian Order.
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The Abandoned
The Abandoned
A Jem'Hadar baby is found on the station and in one day grows into a genetically programmed warrior. Odo tries to convince the violent Jem'Hadar that there is more to life than fighting and killing.
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Civil Defense
Civil Defense
The station faces immanent destruction when a hidden Cardassian security protocol is inadvertantly activated.
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Meridian
Meridian
Jadzia falls in love with a man from a planet that periodically shifts between the Gamma Quadrant and a noncorporeal dimension, and hopes to stabilize the planet.
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Defiant
Defiant
Thomas Riker, a twin of the Enterprise first officer created in a transporter accident, poses as his Starfleet double to steal the Defiant, using the warship to invade the Cardassian DMZ.
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Fascination
Fascination
Station personnel experience amorous feelings for the most unlikely of people during a Bajoran festival. Miles and Keiko's relationship is put to the test by their extended separation.
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Past Tense, Part I
Past Tense, Part I
A transporter accident sends Sisko, Bashir, and Dax three centuries back in time to a crucial point in Earth's history, the Bell Riots of 2024, which led to massive social reforms.
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Past Tense, Part II
Past Tense, Part II
Trapped in Earth's past, Sisko must assume a pivotal role in history and try and restore the future.
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Life Support
Life Support
Vedek Bareil is mortally injured on the eve of groundbreaking peace negotiations with the Cardassians.
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Heart of Stone
Heart of Stone
Odo and Kira find themselves trapped on a barren moon while chasing a Maquis terrorist, and Kira is trapped in an expanding crystaline structure. Nog asks for Sisko's support in applying to Starfleet.
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Destiny
Destiny
Commander Sisko joins a Cardassian science team in establishing a communications relay in the Gamma Quadrant, despite a Bajoran prophecy warning that it will destroy the wormhole.
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Prophet Motive
Prophet Motive
Quark tries to get to the bottom of Grand Nagus Zek's sudden personality change when he rewrites the Rules of Acquisition and establishes a charity fund.
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Visionary
Visionary
Chief O'Brien finds himself jumping ahead five hours into his future, giving him a chance to prevent his own death -- and the destruction of the station.
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Distant Voices
Distant Voices
Doctor Bashir is assaulted by an alien, and wakes up to find himself trapped inside his own mind, where the station is seriously damaged and almost completely abandoned.
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Through the Looking Glass
Through the Looking Glass
Commander Sisko is kidnapped and taken to the mirror universe, where he must convince his estranged wife to join the Terran resistance.
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Improbable Cause
Improbable Cause
When an assassin attempts to kill Garak, Odo's investigation leads deep into Garak's past and a secret Romulan plot.
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The Die Is Cast
The Die Is Cast
With Garak having rejoined his mentor, the Cardassians and Romulans launch a preemptive assault on the Founders -- with Odo as their prisoner.
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Explorers
Explorers
Sisko constructs an ancient Bajoran space sailing ship to try and prove that the ancient Bajorans could have reached Cardassia, as their myth says. Doctor Bashir has to face the only person who beat him at the academy.
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Family Business
Family Business
Quark and Rom return home when their mother is charged with the crime of earning profit as a female. Jake attempts to set up his dad with a freighter captain.
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Shakaar
Shakaar
Kira reluctantly agrees to visit her old Resistance commander on a mission from Kai Winn, but finds herself on the edge of a potential civil war.
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Facets
Facets
Jadzia faces each of her symbiont's previous hosts, with each of her friends volunteering to serve as temporary hosts to their consciences. But when Kerzon joins with Odo, he doesn't want to go back.
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The Adversary
The Adversary
Newly-promoted Captain Sisko leads an investigation of a coup among a Federation neighbor, only to find that a Changeling saboteur has stowed away on the Defiant and is trying to start a war in the Alpha Quadrant.
Click an episode for a synopsis
Lieutenant Commander Worf is transferred to Deep Space Nine and joins the crew, as hostilities with the Dominion increase.
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The Way of the Warrior, Pt I
The Way of the Warrior, Part I
When the Klingons establish a presence on Deep Space Nine and in Bajoran space, Captain Sisko brings Worf to the station to advocate the Federation's cause.
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The Way of the Warrior, Pt II
The Way of the Warrior, Part II
Worf is stuck between the Empire and the Federation when the Klingons launch a full-scale invasion of Cardassia. Sisko attempts to rescue Cardassia's leaders, bringing the fury of the Klingons down on the station.
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The Visitor
The Visitor
Many years into the future, an aged Jake Sisko tells the story of his father's fateful disappearance into subspace -- and his obsessive desire to get him back
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Hippocratic Oath
Hippocratic Oath
Bashir and O'Brien crash land on a planet in the Gamma Quadrant and are captured by rogue Jem'Hadar, who are trying to break the drug addiction that keep them enslaved.
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Indiscretion
Indiscretion
Kira and Dukat seek out a ship of Bajoran prisoners lost six years ago, which Kira discovers included Dukat's Bajoran mistress and their young daughter.
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Rejoined
Rejoined
Jadzia meets the new host of Torias Dax's wife when a group of Trill scientists arrive, and faces the taboo that prevents Trill hosts from reconnecting with loved ones from their former lives.
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Starship Down
Starship Down
The crew takes the Defiant into the Gamma Quadrant for trade negotiations, only to find themselves in a cat-and-mouse hunt with a pair of Jem'Hadar warships in the atmosphere of a gas giant.
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Little Green Men
Little Green Men
After acquiring a ship of his own, Quark takes Rom and Nog for a test flight to Earth -- only to find themselves prisoners of the U.S. military in the year 1947.
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The Sword of Kahless
The Sword of Kahless
Worf joins Dax and the legendary Klingon warrior Kor in a search for the lost sword of Kahless, a mythical weapon they hope will unseat Gowron and unite the Klingon Empire.
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Our Man Bashir
Our Man Bashir
Bashir is enjoying a holosuite program that casts him as a super suave, 20th century secret agent. However as Sisko, Kira, Dax, Worf and O'Brien are transported from a sabotaged runabout just before it explodes, the crew's patterns become integrated into Bashir's holosuite program.
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Homefront
Homefront
An explosion at a Federation/Romulan diplomatic conference reveals that Changelings have infiltrated Earth. Sisko and Odo are dispatched from Deep Space Nine to Earth in hopes of preventing a Dominion takeover.
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Paradise Lost
Paradise Lost
When Dominion sabotage is blamed for a planetwide power outage, Starfleet stations security all over Earth to prepare for an invasion. Sisko, in charge of the effort, becomes suspicious after learning that certain groups of Starfleet troops have been demobilized and learns a chilling truth.
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Crossfire
Crossfire
As First Minister Shakaar arrives at Deep Space Nine to negotiate for Bajor's early admittance into the Federation, Odo learns that "The True Way," a Cardassian extremist group, is planning to assassinate Shakaar. Security around the station is boosted, and Odo personally shadows Shakaar.
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Return to Grace
Return to Grace
A routine diplomatic voyage leads Kira and Dukat to a hunt for a Klingon Bird of Prey, as the former Gul seeks to restore his position in the Cardassian military.
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The Sons of Mogh
The Sons of Mogh
Worf's brother Kurn arrives on Deep Space Nine to undergo ritual suicide. Kira and O'Brien investigate suspicious Klingon activity near Bajoran space.
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Bar Association
Bar Association
Rom leads Quark's employees in forming a union after he drastically cuts their pay, bringing down the wrath of the Ferengi Commerce Association.
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Accession
Accession
A legendary poet makes a surprise return to Bajor, claiming that the Prophets have appointed him to be the Emissary and reinstituting a defunct cast system to try and return Bajoran society to its former glory.
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Rules of Engagement
Rules of Engagement
Commander Worf faces a hearing led by a Klingon advocate wanting to extradite him to the Empire for trial, accusing him of murdering over 400 civilians when he destroyed an unarmed transport ship in the midst of battle.
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Hard Time
Hard Time
Miles O'Brien must readjust to his life on the station after living for 20 years in an alien prison -- only to learn that his punishment was only programmed into his memory.
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Shattered Mirror
Shattered Mirror
Captain Sisko must follow his son into the mirror universe when his late wife's double convinces Jake to visit her reality, and finds himself blackmailed into helping the resistance finish their Defiant.
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The Muse
The Muse
Jake meets an alluring woman who tells him she can help him with his writing -- but who is certainly more than she appears to be. Odo comforts Lwaxana Troi when she arrives on the station ... pregnant.
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For the Cause
For the Cause
Sisko learns that his girlfriend, freighter captain Cassidy Yates, is suspected of collaborating with the Maquis.
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To the Death
To the Death
Sisko forges an alliance with a group of Jem'Hadar to track a group of renegade Jem'Hadar, who are seeking to repair an Iconian gateway that could allow them to control the galaxy.
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The Quickening
The Quickening
Julian commits himself to finding a cure to a plague on a ravaged world in the Gamma Quadrant -- but it may be more than even he can handle.
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Body Parts
Body Parts
Quark reexamines his life when he learns that he has a fatal disease, and decides to auction off his remains. An accident forces Dr. Bashir to transfer Keiko's baby to Major Kira.
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Broken Link
Broken Link
A mysterious illness forces Odo to return to the Great Link, the home of the Changelings -- where he is judged for his past crime.
Click an episode for a synopsis
Odo struggles with his identity, while the Federation and the Dominion inch closer and closer to all-out war. Captain Sisko pursues of an officer who betrayed him.
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Apocalypse Rising
Apocalypse Rising
When new intelligence claims that the leader of the Klingon Empire is a Changeling, Sisko leads an undercover team -- in Klingon disguise -- to try and expose him.
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The Ship
The Ship
The crew finds a downed Jem'Hadar warship while surveying a planet in the Gamma Quadrant, and must defend it from the Dominion forces who come to retrieve it.
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Looking for par'Mach...
Looking for par'Mach In all the Wrong Places
Quark courts his Klingon ex-wife when she returns to DS9, prompting jealousy from Worf. O'Brien and Kira become aware that their new relationship has uncomfortably romantic implications.
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Nor the Battle to the Strong
Nor the Battle to the Strong
Dr. Bashir and Jake Sisko answer a distress call from a planet near the front lines of the war with the Klingons, where they help a medical facility care for the wounded -- and where Jake learns and important lesson about bravery and cowardice.
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The Assignment
The Assignment
Chief O'Brien is stunned when Keiko returns to the station possessed by a noncorporeal entity, demanding that he complete a series of tasks on the station without anyone finding out ... or Keiko will die.
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Trials and Tribble-ations
Trials and Tribble-ations
The Defiant is thrown back in time where they encounter James Kirk's Enterprise at a deep space station, and must catch a former Klingon agent bent on killing Kirk and altering the past.
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Let He Who Is Without Sin
Let He Who Is Without Sin
Worf and Jadzia take a vacation to Risa -- with Julian, Lyta, and Quark tagging along -- where they encounter a movement that believes the paradise is making the Federation weak.
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Things Past
Things Past
Sisko, Odo, Dax, and Garak fall unconscious after a return from Bajor and find themselves on the station during the Cardassian occupation, appearing as four Bajorans -- forcing Odo to face his past.
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The Ascent
The Ascent
Odo transports Quark to testify at a high-security trial, but sabotage forces them to crashland on a barely hospitable world. Jake and Nog move in together.
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Rapture
Rapture
Captain Sisko experiences visions that leads to the discovery of an ancient Bajoran city lost for millenia, but which threaten his life on the eve of Bajor's acceptance into the Federation.
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The Darkness and the Light
The Darkness and the Light
An unknown assassin begins systematically murdering the former members of Kira's resistance cell, and she may be next.
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The Begotten
The Begotten
Odo comes upon an infant Changeling, and comes to terms with his own past with Dr. Mora when he tries to educate the being himself. Chief O'Brien and Shakar bicker as Kira goes into labor.
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For the Uniform
For the Uniform
Captain Sisko hunts the traitor Michael Eddington, a former Starfleet officer who has defected to the Maquis terrorist organization -- a mission that quickly becomes very personal.
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In Purgatory's Shadow
In Purgatory's Shadow
Gerak and Worf travel to the Gamma Quadrant in search of Cardassian and Federation survivors, and find themselves in a Dominion prison. Dukat tries to evacuate his daughter when he learns that a Dominion fleet is on the way to DS9.
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By Inferno's Light
By Inferno's Light
Worf and the others struggle to survive inside a Dominion prison, while Garak works toward their escape. The station's crew is stunned to learn that the Cardassians have joined the Dominion, with Dukat as the leader of the new government.
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Doctor Bashir, I Presume?
Doctor Bashir, I Presume?
A Federation engineer arrives on the station to interview Dr. Bashir's colleagues and family when it is determined that he will be the template for Starfleet's next holographic doctor -- unearthing a secret about Julian's identity.
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A Simple Investigation
A Simple Investigation
Odo falls for a mysterious woman with connections to the Orion Syndicate, who is being pursued by a pair of murderous alien criminals who are looking for something.
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Business as Usual
Business as Usual
Quark's accepts his cousin's offer to become a weapons dealer when his accounts hit rock bottom. But he has second thoughts about his new career when a high-profile customer seeks the means to massacre millions of people.
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Ties of Blood and Water
Ties of Blood and Water
Kira hopes to convince a close friend and leader in the Cardassian dissident movement to spearhead a resistance against Dukat's new Dominion-backed government -- only to learn that he is dying.
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Ferengi Love Songs
Ferengi Love Songs
Quark returns home only to find that his mother has started a romance with Grand Nagus Zek. Rom and Leeta's relationship is on the rocks when he asks her to embrace some of Ferengi society.
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Soldiers of the Empire
Soldiers of the Empire
Worf and General Martok take command of a Klingon crew in search of a missing ship, and who are falling apart and desperate for a victory.
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Children of Time
Children of Time
The crew of the Defiant find themselves stranded on a planet in the Gamma Quadrant, where they find a thriving settlement of their own descendents -- caused by the ship going 200 years into the past while trying to escape.
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Blaze of Glory
Blaze of Glory
When Captain Sisko learns that the Maquis are poised to launch a devestating missile attack on Cardassia, he enlists the help of the traitorous Michael Eddington to try and stop them.
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Empok Nor
Empok Nor
Chief O'Brien and Garak lead a team to scavenge supplies from Empok Nor, an abandoned Cardassian station similar to DS9 -- but inadvertantly revive a pair of assassins left behind to protect the station.
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In the Cards
In the Cards
Jake and Nog go to great lengths to try and acquire a twentieth century baseball card to cheer up Captain Sisko. Representatives from the Dominion arrive to negotiate with Kai Winn.
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Call to Arms
Call to Arms
As war with the Dominion grows ever more inevitable, the Federation decides to mine the entrance to the wormhole to prevent more troops from coming through -- sparking a violent backlash.
Click an episode for a synopsis
The Federation engages in a brutal war with the Dominion, with Deep Space Nine on the Gamma Quadrant front line. The price of the war is great indeed.
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A Time to Stand
A Time to Stand
The war has begun. While Kira and Odo try to coexist with the Cardassian-Dominion presence on the station, Captain Sisko and his crew take a captured Jem'Hadar ship to destroy the enemy's supply of Ketracel-white.
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Rocks and Shoals
Rocks and Shoals
While fleeing the enemy in a damaged Jem'Hadar ship, the crew crash lands on an uncharted planet -- with a squadron of stranded Jem'Hadar nearby. Kira in convicted by her complicity with the Dominion.
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Sons and Daughters
Sons and Daughters
Worf's son Alexander joins the Klingon military and comes aboard General Martok's ship, for reasons unknown to his father. Dukat's daughter returns to Deep Space Nine.
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Behind the Lines
Behind the Lines
Odo's growing curiosity about the Link puts a vital Resistance plan at risk when the female Founder comes on board the station. Captain Sisko must watch his crew go on without him after accepting a promotion.
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Favor the Bold
Favor the Bold
With morale at an all-time low, Sisko conceives of a daring plan to retake the station by force. Quark and Kira hope to free Rom from prison, while the Cardassians prepare to reopen the line to the Gamma Quadrant
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Sacrifice of Angels
Sacrifice of Angels
The Federation Fleet engages the Dominion forces in an attempt to punch through to DS9 and stop the destruction of the minefield blocking the wormhole. Relationships are strained on the station as the Resistance makes a last-ditch effort.
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You Are Cordially Invited...
You Are Cordially Invited...
Commanders Worf and Dax prepare to wed on board the newly recaptured Deep Space 9 -- but first Jadzia must satisfy the demands of Martok's wife, sent to evaluate her fitness to join their prestitious house.
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Resurrection
Resurrection
Bariel shocks Major Kira when he arrives on Deep Space 9 from an alternate universe, and hopes to get a fresh start on life after an encounter with the Bajoran faith.
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Statistical Probabilities
Statistical Probabilities
A group of genetically engineered men and women, once confined to a mental institution, are brought to the station in the hopes that Dr. Bashir can help them -- and wind up using their special abilities to offer Starfleet an advanced strategy plan.
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The Magnificent Ferengi
The Magnificent Ferengi
Quark assembles a team of Ferengi to rescue his mother from the Dominion.
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Waltz
Waltz
After the ship transporting Gul Dukat to trial is destroyed, Captain Sisko is stranded with the insane war criminal -- who insists on getting Sisko to admit that he respects him.
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Who Mourns for Morn?
Who Mourns for Morn?
Quark learns that he is Morn's sole heir after his best customer is reported dead, and becomes a target when Morn's acquaintances want a piece of his estate.
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Far Beyond the Stars
Far Beyond the Stars
Ben Sisko imagines himself to be a science fiction writer in the twentieth century struggling with racism, where his coworkers are humanized versions of DS9's personnel.
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One Little Ship
One Little Ship
Dax, O'Brien, and Bashir are shrunk in order to explore an anomoly, and take their tiny runabout inside the Defiant when they return to discover that the Jem'Hadar have taken control of the ship.
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Honor Among Thieves
Honor Among Thieves
Chief O'Brien is recruited by Starfleet Intelligence to infiltrate the Orion Syndicate in order to root out a traitor, but his relationship with his new boss grows increasingly personal.
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Change of Heart
Change of Heart
Dax and Worf receive a message from a Cardassian defector, and must hike two days through a jungle in Dominion-controlled space to help him escape.
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Wrongs Darker Than Death...
Wrongs Darker Than Death or Night
When Dukat tells Kira that her mother was his lover during the occupation, she travels back in time to find out if it's true -- and winds up a consort of the Cardassians herself.
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Inquisition
Inquisition
Doctor Bashir is interrogated by Starfleet Internal Affairs when he is suspected of being a spy for the Dominion.
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In the Pale Moonlight
In the Pale Moonlight
With war casualties mounting, Captain Sisko seeks Garak's help in finding a way to bring the Romulans into the war on the side of the Federation.
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His Way
His Way
Odo explores Dr. Bashir's new holodeck program, starring twentieth century lounge singer Vic Fontaine, in the hopes of learning how to win the heart of Major Kira.
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The Reckoning
The Reckoning
Captain Sisko discovers an ancient Bajoran artifact that initiates a final showdown between the Prophets and their mortal enemies, the Pah-Wraiths, putting the station and all of Bajor in mortal jeopardy.
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Valiant
Valiant
Jake and Nog are rescued from the Jem'Hadar by the crew of an advanced warship -- Academy cadets who took over their mission when the officers on board were killed.
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Profit and Lace
Profit and Lace
Grand Nagus Zek is deposed after trying to reform Ferengi society with feminist values, inspired by Quark's rebellious mother -- forcing Quark to go to great lengths to help him.
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Time's Orphan
Time's Orphan
Chief O'Brien's daughter falls into a portal that sends her far into the past. But when the crew brings her back she is an 18-year-old woman who has lived alone for 10 years, and behaves like a wild animal.
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The Sound of Her Voice
The Sound of Her Voice
The Defiant charges to the rescue of a Starfleet officer stranded on a desolate planet six days away, communicating with her by subspace all the way.
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Tears of the Prophets
Tears of the Prophets
Captain Sisko is charged with planning the invasion of Cardassia when Starfleet decides to go on the offensive. Dukat returns home with a new agenda -- which will change Bajor and Deep Space Nine forever.
Click an episode for a synopsis
The Dominion War comes to its culmination, as Sisko faces an uncertain future. Meanwhile Dukat launches a scheme to overthrow the Prophets.
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Image in the Sand
Image in the Sand
Sisko hopes to find a way to reconnect with the Prophets, leading him to a secret about his father's past -- and making him the target of a new Bajoran cult. Kira finds her new working relationship with a Romulan Senator too good to be true.
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Shadows and Symbols
Shadows and Symbols
Ben goes in search of the Orb of the Emissary, believing it will restore the wormhole and reveal the truth about his mother. Kira initiates a blockade to try and force the Romulans to remove weapons from a Bajoran moon, while Worf leads a mission to honor his fallen wife.
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Afterimage
Afterimage
Ezri Dax attempts to adjust to life on DS9 and the rekindling of Jadzia's old relationships. Garak suffers from acute clostrophobia.
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Take Me Out to the Holosuite
Take Me Out to the Holosuite
When an all-Vulcan ship arrives as the station, Sisko and its captain rekindle an old feud by having their crews compete in a game of baseball.
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Chrysalis
Chrysalis
Dr. Bashir's genetically-enhanced friends return to the station when he devises a new surgical procedure that could give Serena a normal life.
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Treachery, Faith, and the...
Treachery, Faith, and the Great River
Weyoun defects from the Dominion, calling on Odo to help him escape and pledging his loyalty to him. Chief O'Brien is in a predicament when he trusts Nog to secure an important component.
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Once More Unto the Breach
Once More Unto the Breach
An aging Klingon legend seeks Worf's help in finding glory in battle once again, leading to a dangerous confrontation with the Dominion. Worf learns that General Martok has a personal grudge against the hero.
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The Siege of AR-558
The Siege of AR-558
Sisko and a team from DS9 arrive on a Federation planet under seige by the Jem'Hader, and must take command of the bloody conflict to help a team of battle-weary soldiers hold the outpost.
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Covenant
Covenant
Colonel Kira is abducted by the Pah Wraith Cult and brought to Empok Nor, where she meets face-to-face with the group's beloved leader: Dukat.
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It's Only a Paper Moon
It's Only a Paper Moon
Nog returns to the station after months of therapy following the replacement of his leg, and moves into Vic Fontaine's holosuite program when he has trouble readjusting to his life and relationships.
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Prodigal Daughter
Prodigal Daughter
Ezri is forced to return home after Chief O'Brien goes missing, not knowing that the family business has become involved with the deadly Orion Syndicate.
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The Emperor's New Cloak
The Emperor's New Cloak
Quark and Rom visit the treacherous alternate universe when Grand Nagus Zek becomes a prisoner of the Alliance, who demand a cloaking device in exchange for his release.
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Field of Fire
Field of Fire
The murder of a promising young officer sends Ezri on a quest to find his killer -- for which she seeks help from Joran Dax, a psychotic murderer who was once host to her symbiant.
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Chimera
Chimera
A solo changeling who is not one of the Founders visits the station, seeking out Odo as the first one of his kind he has ever encountered -- and encouraging him to give up his life with humanoids and join him in exploring the galaxy.
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Badda-Bing Badda-Bang
Badda-Bing Badda-Bang
When Vic Fontaine's holosuite lounge is taken over by mobsters, DS9's senior staff hatches a plot to rob the casino and drive Vic's nemesis out of town.
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Inter Arma Enim Silent Leges
Inter Arma Enim Silent Leges
Dr. Bashir is recruited to spy for Section 31 when he attends an intelligence conference on Romulus.
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Penumbra
Penumbra
Ezri steals a runabout to go in search of Worf when his ship is destroyed in combat, only to be stranded with him on an uninhabited planet. Captain Sisko and Kasidy Yates make plans for their future, while Dukat seeks an unusual favor from Damar.
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'Til Death Do Us Part
'Til Death Do Us Part
Sisko must decide whether or not to go through with his wedding when the Prophets warn him not to. Dukat poses as a Bajoran farmer to gain the trust of Kai Winn, while Worf and Dax sort through their new relationship while prisoners of the Breen.
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Strange Bedfellows
Strange Bedfellows
Ezri and Worf attempt to escape the Dominion, who have made a powerful new ally in the war with the Federation. Winn must make an important decision when her faith is challenged.
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The Changing Face of Evil
The Changing Face of Evil
The Breen strike at the heart of the Federation, and Captain Sisko and crew join a battle to retake a key star system. Winn seeks answers in the dark texts of the Pah Wraiths, only to discover the truth about her new companion.
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When It Rains...
When It Rains...
Starfleet sends Kira to teach guerilla tactics to Damar's new Cardassian resistance movement. Bashir uncovers startling news about Odo, and the Klingon Chancellor announces a questionable strategy.
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Tacking Into the Wind
Tacking Into the Wind
Kira, Odo, and Garak join the Cardassian resistance in a daring plan to steal the new Breen weapon. Klingon Chancellor Gowron's faulty war tactics force Worf to move against him, while Bashir and O'Brien look for a way to lure Section 31 into a trap.
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Extreme Measures
Extreme Measures
Dr. Bashir and Chief O'Brien lure Sloan, the enigmatic agent of Section 31, into a trap to try and extract the cure for Odo's disease from his mind -- before Odo's time runs out.
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The Dogs of War
The Dogs of War
The Cardassian resistance movement hangs by a thread when the Dominion sets a trap for Damar. The Grand Nagus announces his intention to retire and name Quark as his successor.
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What You Leave Behind, Pt I
What You Leave Behind, Part I
The Alpha Quadrant alliance launches its final assault on the Dominion stronghold, a battle that will decide the war. The Cardassian people rise up against the Dominion, while Kai Winn and Dukat attempt to release the Pah Wraiths.
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What You Leave Behind, Pt II
What You Leave Behind Part II
The Dominion War finally comes to an end, but at a great cost to Cardassia. Odo offers the Founders the cure for the disease that threatens to destroy them, and the crew of Deep Space Nine prepares to go their separate ways.