Season 4 of Deep Space Nine marks a major shift for the series, as it introduces a new conflict between the Federation and the Klingon Empire, sparked by the latter's distrust of the shape-shifting Founders. Worf, the former security chief of the USS Enterprise-D, joins the station's crew as Sisko's strategic operations officer, and faces challenges in his loyalty, honor, and family.
Release Date
PremieredStar Trek: Deep Space Nine Season 4 released on October 2, 1995.
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Sign In to Track ProgressSeasons
The Way of the Warrior (1)
The Klingons attack Cardassia in an attempt to overthrow the planet's newly installed civilian government. When the crew of Deep Space Nine saves the members of the new government, they fall under attack from the Klingons as well. Worf is transferred to Deep Space Nine.
The Way of the Warrior (2)
The Klingons attack Cardassia in an attempt to overthrow the planet's newly installed civilian government. When the crew of Deep Space Nine saves the members of the new government, they fall under attack from the Klingons as well. Worf is transferred to Deep Space Nine.
The Visitor
An elderly Jake Sisko relates the story of how he lost his father to a temporal displacement accident.
Hippocratic Oath
Bashir assists a rogue group of Jem'Hadar attempting to overcome their addiction to Ketracel White.
Indiscretion
Kira and Dukat embark on a mission to find lost Bajoran prisoners. On the mission, Dukat reveals that he too has someone he is concerned about on the ship, a Bajoran woman with whom he had an affair.
Rejoined
Dax is reunited with one of her former hosts' mates, and the two struggle with their feelings for one another.
Starship Down
The USS Defiant becomes trapped in a planet's volatile atmosphere after battling with the Jem'Hadar.
Little Green Men
Quark, Rom and Nog are accidentally thrust back in time to Roswell, New Mexico, Earth in 1947.
The Sword of Kahless
Worf, Dax and a revered Klingon warrior, Kor, search for the Sword of Kahless to unite the Klingon Empire.
Our Man Bashir
Bashir plays a 1960s secret agent in a holosuite, but when it is used in an emergency to store the transporter patterns of some of the crew, he must make life or death decisions.
Homefront
Sisko and Odo are brought to Earth when it's suspected Changelings are infiltrating Starfleet.
Paradise Lost
As Sisko and Odo prepare for a Dominion invasion they discover a plot to place the Federation under military control.
Crossfire
Odo's hidden feelings for Kira surface when the visiting Bajoran First Minister begins to court her.
Return to Grace
Dukat seeks Kira's help in regaining his rank in the Cardassian Empire.
Sons of Mogh
Cast out of Klingon society because of Worf's dishonor, his outcast brother asks Worf to kill him.
Bar Association
Rom creates a union for Quark's employees and goes on strike.
Accession
A famous Bajoran poet who disappeared over 200 years ago appears from the wormhole and convinces Sisko that he is the true Emissary.
Rules of Engagement
Worf accidentally destroys a civilian ship during battle and faces a hearing to determine whether he should be extradited to the Klingon Empire.
Hard Time
O'Brien is incarcerated for 20 years on an alien world on charges of espionage. However the experience was implanted into his mind, and O'Brien struggles to re-adjust to station life.
Shattered Mirror
Sisko attempts to rescue Jake after he is lured into a war-torn mirror universe by his mother's living counterpart.
The Muse
While Odo assists a pregnant Lwaxana Troi, Jake falls under the spell of a mysterious woman.
For the Cause
Sisko learns that his girlfriend Kasidy may be a Maquis smuggler.
To the Death
Sisko and the Defiant crew join forces with the Jem'Hadar to stop a group of Jem'Hadar renegades from gaining power.
The Quickening
Bashir tries to free the population of a Gamma Quadrant world of an engineered disease left by the Dominion 200 years ago.
Body Parts
Quark is diagnosed with a terminal disease and sells his body parts on the Ferengi Futures Exchange.
Broken Link
Odo is forced to return to his people, the Changelings, to face judgment for killing one of his own.
Star Trek: Deep Space Nine
Season 4
Season 4 of Deep Space Nine marks a major shift for the series, as it introduces a new conflict between the Federation and the Klingon Empire, sparked by the latter's distrust of the shape-shifting Founders. Worf, the former security chief of the USS Enterprise-D, joins the station's crew as Sisko's strategic operations officer, and faces challenges in his loyalty, honor, and family.
Release Date
PremieredStar Trek: Deep Space Nine Season 4 released on October 2, 1995.
Your Progress
Track your watching progress by signing in
Sign In to Track ProgressThe Way of the Warrior (1)
The Klingons attack Cardassia in an attempt to overthrow the planet's newly installed civilian government. When the crew of Deep Space Nine saves the members of the new government, they fall under attack from the Klingons as well. Worf is transferred to Deep Space Nine.
The Way of the Warrior (2)
The Klingons attack Cardassia in an attempt to overthrow the planet's newly installed civilian government. When the crew of Deep Space Nine saves the members of the new government, they fall under attack from the Klingons as well. Worf is transferred to Deep Space Nine.
The Visitor
An elderly Jake Sisko relates the story of how he lost his father to a temporal displacement accident.
Hippocratic Oath
Bashir assists a rogue group of Jem'Hadar attempting to overcome their addiction to Ketracel White.
Indiscretion
Kira and Dukat embark on a mission to find lost Bajoran prisoners. On the mission, Dukat reveals that he too has someone he is concerned about on the ship, a Bajoran woman with whom he had an affair.
Rejoined
Dax is reunited with one of her former hosts' mates, and the two struggle with their feelings for one another.
Starship Down
The USS Defiant becomes trapped in a planet's volatile atmosphere after battling with the Jem'Hadar.
Little Green Men
Quark, Rom and Nog are accidentally thrust back in time to Roswell, New Mexico, Earth in 1947.
The Sword of Kahless
Worf, Dax and a revered Klingon warrior, Kor, search for the Sword of Kahless to unite the Klingon Empire.
Our Man Bashir
Bashir plays a 1960s secret agent in a holosuite, but when it is used in an emergency to store the transporter patterns of some of the crew, he must make life or death decisions.
Homefront
Sisko and Odo are brought to Earth when it's suspected Changelings are infiltrating Starfleet.
Paradise Lost
As Sisko and Odo prepare for a Dominion invasion they discover a plot to place the Federation under military control.
Crossfire
Odo's hidden feelings for Kira surface when the visiting Bajoran First Minister begins to court her.
Return to Grace
Dukat seeks Kira's help in regaining his rank in the Cardassian Empire.
Sons of Mogh
Cast out of Klingon society because of Worf's dishonor, his outcast brother asks Worf to kill him.
Bar Association
Rom creates a union for Quark's employees and goes on strike.
Accession
A famous Bajoran poet who disappeared over 200 years ago appears from the wormhole and convinces Sisko that he is the true Emissary.
Rules of Engagement
Worf accidentally destroys a civilian ship during battle and faces a hearing to determine whether he should be extradited to the Klingon Empire.
Hard Time
O'Brien is incarcerated for 20 years on an alien world on charges of espionage. However the experience was implanted into his mind, and O'Brien struggles to re-adjust to station life.
Shattered Mirror
Sisko attempts to rescue Jake after he is lured into a war-torn mirror universe by his mother's living counterpart.
The Muse
While Odo assists a pregnant Lwaxana Troi, Jake falls under the spell of a mysterious woman.
For the Cause
Sisko learns that his girlfriend Kasidy may be a Maquis smuggler.
To the Death
Sisko and the Defiant crew join forces with the Jem'Hadar to stop a group of Jem'Hadar renegades from gaining power.
The Quickening
Bashir tries to free the population of a Gamma Quadrant world of an engineered disease left by the Dominion 200 years ago.
Body Parts
Quark is diagnosed with a terminal disease and sells his body parts on the Ferengi Futures Exchange.
Broken Link
Odo is forced to return to his people, the Changelings, to face judgment for killing one of his own.