DS9 Episode Overview: Season 7

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 7x01 IMAGE IN THE SAND

Sisko has retreated to Earth to contemplate a way of contacting the Bajoran Prophets. When the vision of a woman's face, buried in the sand, appears to Sisko, he sketches her, and Jake recognizes her from one of his grandfather's photos.

   
 7x02 SHADOWS AND SYMBOLS

Jake, Joseph, Ezri and Ben set off on the search for Bajor's mythical Orb of the Emissary. Back at the station, Kira prepares a blockade to stop the Romulans, who have placed weapons on a Bajoran moon. On a Klingon ship, Worf, O'Brien, Bashir, and Quark embark on a mission of their own: to destroy a Dominion shipyard.

   
 7x03 AFTERIMAGE

Ezri must deal with the range of reactions her presence generates. Worf, pained by the memory of his dead wife Jadzia, which Ezri's presence provokes, makes it clear he wants nothing to do with her. Elsewhere, Garak inexplicably collapses and is rushed to Doctor Bashir's care.

   
 7x04 TAKE ME OUT TO THE HOLOSUITE

Vulcan Captain Solok challenges former classmate and longtime rival Sisko to a baseball game on the Holosuite. With only two weeks to whip his team into shape, Captain Benjamin Sisko vows he's going to beat Solok - even though Jake is the only other person residing on the station who has ever played baseball.

   
 7x05 CHRYSALIS

The group of genetically enhanced humans escape from their medical facility home in the hopes that Bashir can cure their friend Sarina. Her enhancements left her in a catatonic state, and Bashir attempts an untried procedure on her brain that initially appears to have no effect. However, a few days later, Sarina speaks for the first time.

   
 7x06 TREACHERY, FAITH AND THE GREAT RIVER

Odo is lured to a secret meeting site, where he finds himself face to face with Weyoun. He announces that he's decided to defect and promises to provide valuable information that could help the Federation win the war. After the two board Odo's Runabout, the ship is hailed by the none other than Weyoun.

   
 7x07 ONCE MORE UNTO THE BREACH

Worf is paid a visit by Kor who has been unable to secure the command of a ship. Worf approaches Martok with the request - which is angrily refused. Undaunted, Worf appoints Kor as a third officer on the Ch'Tang, Martok's flagship, where he is treated with awe by the crew - much to Martok's chagrin.

   
 7x08 THE SIEGE OF AR-558

Sisko encounters Starfleet troops who have been decimated during their five-month occupation of the largest Dominion communications array in the sector. In addition to daily skirmishes with the enemy, the shell-shocked forces are constantly threatened by "Houdinis" - anti-personnel mines that are cloaked in subspace.

   
 7x09 COVENANT

Vedek Fala, Kira's former teacher, pays her an unexpected visit. He gives Kira a crystal which transports her to Empok Nor, where, to her horror, she is met by her old enemy Gul Dukat - the Cardassian who oversaw the occupation of Bajor. He is now the leader of a Bajoran religious faction which worships the Pah-wraiths.

   
 7x10 IT'S ONLY A PAPER MOON

After losing his leg in battle, a somber Nog returns to DS9 to recuperate. After pushing away those who try the most diligently to help, Nog decides to take his medical leave in the Holosuite world of 1962 Las Vegas lounge singer Vic Fontaine.

   
 7x11 PRODIGAL DAUGHTER

Sisko learns that O'Brien has vanished while on a secret trip to New Sydney. Because Ezri's family owns a mining operation in the system, Sisko asks her to help find the chief. Ezri returns home, where she's reunited with her domineering mother, Yanas Tigan - a shrewd business woman - and her brothers Norvo and Janel.

   
 7x12 THE EMPEROR'S NEW CLOAK

Zek disappears while on a business trip to the Mirror Universe. Ezri Dax's counterpart from the universe delivers word that the Nagus is a prisoner of the evil Alliance and will be killed unless Quark can secure a cloaking device. Quark and brother Rom steal one from a Klingon vessel, then accompany Ezri back to the Mirror Universe.

   
 7x13 FIELD OF FIRE

Ezri confronts one of Dax's previous incarnations in a dream: Joran, a self-professed murderer, who urges Ezri to channel his disturbing memories and enable him to assist her in apprehending a killer. When Ezri awakens, she learns that a second murder has occurred. She soon realises that she is next on the hit-list.

   
 7x14 CHIMERA

Odo discovers one of "the hundred" shapeshifters who were, like himself, sent out as infants into the galaxy to learn about other species. The Changeling, known as Laas, queries Odo about their unique species, but soon question's his complacency to stay among the "solids" on DS9.

   
 7x15 INTER ARMA ENIM SILENT LEGES

Bashir is visited by Sloan, the director of Section 31 who asks him to gather information on the Romulan leadership. After consulting with Admiral Ross, Sisko advises Bashir to play along with Sloan in order to determine his motivations.

   
 7x16 BADDA-BING, BADDA-BANG

Upset by the arrival of gangster Frankie Eyes in Vic's lounge, the crew decides it must rid him from the program. But he must be eliminated in a way what is period-specific to Fontaine's era: 1962. The whole crew get involved when Vic is beaten up, and start to plan a strategy to return Vic's to it's rightful owner.

   
 7x17 PENUMBRA

As Sisko revels in the purchase of some Bajoran land, word reaches the station that Worf is missing in action after a fierce battle with the Dominion. Due to strategic concerns, Sisko calls off the search party before Worf can be found. Overcome by memories of Jadzia's life with Worf, Ezri steals a runabout and goes in search of Worf herself.

   
 7x18 'TIL DEATH DO US PART

Kai Winn arrives to 'assist' Sisko with his wedding. Later, she has a long-awaited vision from the Prophets, who reveal that a 'Guide' will soon visit her; the Prophets hope that, together, the two will lead Bajor's Restoration. Gul Dukat, now surgically altered to look like a Bajoran, appears on the Promenade.

   
 7x19 STRANGE BEDFELLOWS

Worf and Ezri are beamed aboard a Jem'Hadar ship, where the Female Shapeshifter and Thot Gor, the respective leaders of the new Dominion-Breen alliance, prepare to sign a treaty designed to destroy the Federation and end the war. However, Damar objects to signing it because of concessions, made to Thot Gor.

   
 7x20 THE CHANGING FACE OF EVIL

While Dominion and Breen commanders rejoice in their attack on Earth, their supposed ally - Cardassian leader Damar - secretly plots to free his homeland from Dominion occupation. Meanwhile, on Bajor, Dukat tells Kai Winn she must release the Pah-wraiths from the fire caves by reading the ancient forbidden text of the Kosst Amojan.

   
 7x21 WHEN IT RAINS...

Sisko orders Kira to put her hatred of Cardassians aside and train Damar's staff in resistance tactics. Hoping to ease Cardassian resentment against the Bajoran Kira, Sisko givers her a Starfleet commission and uniform. On Bajor, Kai Winn studies the forbidden text of the Kosst Amojan to learn how to release the evil Pah-wraiths.

   
 7x22 TACKING INTO THE WIND

While Colonel Kira reviews tactical plans with the Cardassian Resistance leaders, Sisko condemns Gowron for reckless attacks which left Martok injured. Back at the rebel headquarters, Kira proposes stealing the enemy's weaponry so that the Federation can engineer a countermeasure.

   
 7x23 EXTREME MEASURES

Kira brings a terminally ill Odo back to the station for medical treatment. O'Brien and Bashir inform Sisko of their plan to lure a Section 31 operative, who may hold the cure to Odo's disease, to the station. Bashir and O'Brien must risk their own lives by entering Sloan's brain to find the cure.

   
 7x24 THE DOGS OF WAR

Kira, Garak and Damar barely escape a Dominion ambush on Cardassia and are forced into hiding. Quark receives a static-filled message from Grand Nagus Zek, the Ferengi leader, informing him that he's been named Zek's successor. Now cured of the deadly virus, Odo is outraged to learn that he was infected by Section 31.

   
 7x25 WHAT YOU LEAVE BEHIND, PART I
 7x26 WHAT YOU LEAVE BEHIND, PART II

They've defended the edge of the final frontier for seven years, and been through thick and thin, facing dangers from all around. After 176 episodes of adventure and exploration, the crew of space station Deep Space Nine face their final mission: the destruction of the Dominion. With Cardassia being flattened by Jem'Hadar forces, Kira and the rebellion group storm Dominion Central Command and faceoff with the Female Shapeshifter.