S4 E1 • La Tradition du guerrier (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.

Première diffusion : 2 octobre 1995

S4 E2 • La Tradition du guerrier (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.

Première diffusion : 2 octobre 1995

S4 E3 • Le Visiteur

An elderly Jake Sisko relates the story of how he lost his father to a temporal displacement accident.

Première diffusion : 9 octobre 1995

S4 E4 • Le Serment d'Hippocrate

Bashir assists a rogue group of Jem'Hadar attempting to overcome their addiction to Ketracel White.

Première diffusion : 16 octobre 1995

S4 E5 • Indiscrétion

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.

Première diffusion : 23 octobre 1995

S4 E6 • L'interdit

Dax is reunited with one of her former hosts' mates, and the two struggle with their feelings for one another.

Première diffusion : 30 octobre 1995

S4 E7 • Les Karemmas

The USS Defiant becomes trapped in a planet's volatile atmosphere after battling with the Jem'Hadar.

Première diffusion : 6 novembre 1995

S4 E8 • Les Petits Hommes verts

Quark, Rom and Nog are accidentally thrust back in time to Roswell, New Mexico, Earth in 1947.

Première diffusion : 13 novembre 1995

S4 E9 • L'Épée de Kahless

Worf, Dax and a revered Klingon warrior, Kor, search for the Sword of Kahless to unite the Klingon Empire.

Première diffusion : 20 novembre 1995

S4 E10 • Notre homme 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.

Première diffusion : 27 novembre 1995

S4 E11 • L'Enfer sur Terre

Sisko and Odo are brought to Earth when it's suspected Changelings are infiltrating Starfleet.

Première diffusion : 1 janvier 1996

S4 E12 • Paradis perdu

As Sisko and Odo prepare for a Dominion invasion they discover a plot to place the Federation under military control.

Première diffusion : 8 janvier 1996

S4 E13 • Feux croisés

Odo's hidden feelings for Kira surface when the visiting Bajoran First Minister begins to court her.

Première diffusion : 29 janvier 1996

S4 E14 • Touché par la grâce

Dukat seeks Kira's help in regaining his rank in the Cardassian Empire.

Première diffusion : 5 février 1996

S4 E15 • Les Fils de Mogh

Cast out of Klingon society because of Worf's dishonor, his outcast brother asks Worf to kill him.

Première diffusion : 12 février 1996

S4 E16 • Le Syndicat

Rom creates a union for Quark's employees and goes on strike.

Première diffusion : 19 février 1996

S4 E17 • Accession

A famous Bajoran poet who disappeared over 200 years ago appears from the wormhole and convinces Sisko that he is the true Emissary.

Première diffusion : 26 février 1996

S4 E18 • Les Règles du combat

Worf accidentally destroys a civilian ship during battle and faces a hearing to determine whether he should be extradited to the Klingon Empire.

Première diffusion : 8 avril 1996

S4 E19 • La Mémoire emprisonnée

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.

Première diffusion : 15 avril 1996

S4 E20 • Et le miroir se brisa

Sisko attempts to rescue Jake after he is lured into a war-torn mirror universe by his mother's living counterpart.

Première diffusion : 22 avril 1996

S4 E21 • La Muse

While Odo assists a pregnant Lwaxana Troi, Jake falls under the spell of a mysterious woman.

Première diffusion : 29 avril 1996

S4 E22 • Pour la cause

Sisko learns that his girlfriend Kasidy may be a Maquis smuggler.

Première diffusion : 6 mai 1996

S4 E23 • Combat pour la mort

Sisko and the Defiant crew join forces with the Jem'Hadar to stop a group of Jem'Hadar renegades from gaining power.

Première diffusion : 13 mai 1996

S4 E24 • La Peste

Bashir tries to free the population of a Gamma Quadrant world of an engineered disease left by the Dominion 200 years ago.

Première diffusion : 20 mai 1996

S4 E25 • Un contrat est un contrat

Quark is diagnosed with a terminal disease and sells his body parts on the Ferengi Futures Exchange.

Première diffusion : 10 juin 1996

S4 E26 • Flux brisé

Odo is forced to return to his people, the Changelings, to face judgment for killing one of his own.

Première diffusion : 17 juin 1996