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Deep Space Nine (DS9) Season 4

Season 1 - Season 2 - Season 3 - Season 4 - Season 5 - Season 6 - Season 7

Full reviews to be added later.

The Way of the Warrior I/II Stardate 49011.4: A Klingon fleet headed by General Martok arrives at Deep Space Nine, allegedly to help the Federation fight against the Dominion. In order to figure out what the Klingon presence is really about, Lt. Commander Worf is summoned to the station. He learns that the Klingons are preparing an invasion of Cardassia, asserting that the Cardassian government has been infiltrated by Changelings. Sisko gives Garak a cue so the Cardassians have at least a slight chance to defend themselves. Starfleet orders Sisko to remain neutral in the conflict though. The Federation officially condemns the attack, and the Klingons react by calling off the peace treaty. When the victorious Klingon fleet returns from Cardassia, Gowron offers Worf to redeem himself, but he reclines upon which Gowron strips the House of Mogh of its honor. With the help of the Defiant Sisko manages to rescue a couple of Cardassian council members, among them Gul Dukat. The Klingon fleet beleaguers Deep Space Nine, demanding their extradition. Sisko refuses, and many Klingon ships fall victim to the superior tactical systems of the station. Grudgingly Gowron orders the fleet to retreat, but the Klingons are not willing to give up the Cardassian colonies they have conquered.

The Visitor Stardate not given: An aged Jake Sisko tells the young aspiring writer Melanie the story of his life. When Jake was 18 years old, his father, Ben Sisko, apparently died in an accident on the Defiant when he was hit by a light bolt from the warp core during an experiment. But time and again the captain rematerialized in the following years. Jake, who had become a successful author in the meantime, his principal work being the novel Anslem, decided to start over and study subspace mechanics. But the attempt to to exactly reproduce the experiment to retrieve his father from subspace failed. Ben was just able to tell his son to finally let go. Old Jake expects Ben to appear one last time, and he takes a poison to die in the very moment when his father is with him. Now that the cord between the two is broken, Ben is hurled back to the moment of the accident. He ducks when the light bolt strikes, gaining a second chance to live with his son.

Hippocratic Oath Stardate 49066.5: On a remote planet O'Brien and Dr. Bashir are captured by a group of Jem'Hadar led by Goran'Agar. Their life is spared because Goran'Agar, who has become immune to the effects of the drug Ketracel white, wants Bashir to develop a cure for his soldiers. While O'Brien is secretly working on their escape, Bashir commits himself to helping the Jem'Hadar to free themselves of the tyranny of the Dominion. O'Brien, who disagrees with helping soldiers who are bred to kill, escapes without the doctor. When he returns and Bashir refuses to come with him, O'Brien destroys the doctor's research. Goran'Agar allows them to leave, determined to kill his men who are running out of Ketracel white, rather than letting them suffer.

Indiscretion Stardate not given: Kira Nerys retrieves information where to find the Ravinok, a Cardassian transport carrying Bajoran prisoners that vanished six years ago. She reluctantly agrees when Gul Dukat wants to join her. They take a runabout to the Dozaria system where they actually find the wreck of the Ravinok and evidence that some of the passengers could still be alive. Dukat reveals to Kira that he has come to seek his half-Bajoran daughter Tora Ziyal, only to kill her because her existence would disgrace the high-ranking Cardassian officer. They actually find Ziyal and a few more prisoners in a labor camp run by the Breen. When he meets Ziyal, Dukat points his weapon at her - but overwhelmed by his feelings he doesn't shoot. He decides to take his daughter with him even though it would likely cost him his position.

Rejoined Stardate 49195.5: Jadzia Dax works on a project to create an artificial wormhole together with a team of Trill scientists, among them Lenara Kahn whose former host was married to Torias Dax. It is strictly forbidden for Trill symbionts to engage in a second relationship with new hosts, in which case the symbiont would be exiled and condemned to die after the death of the current host. While working on the project, Kahn and Dax can no longer deny their mutual affection. They share a passionate kiss. When the wormhole collapses, leading to an almost fatal accident in the engine room of the Defiant, they recognize that they would never want to be without one another. But Lenara ultimately decides against the relationship and in favor of her people's regulations and traditions.

Starship Down Stardate 49263.5: The Defiant meets with a Karemma vessel for trade negotiations when two Jem'Hadar fighters attack. The Karemma ship hides in a gas giant. When the Defiant follows them, the Jem'Hadar attack again and cripple the Starfleet vessel. While Jadzia and Bashir are trapped on a deck filling with poisonous gas, O'Brien manages to arm an atmospheric probe with a quantum torpedo charge. The Defiant is once again taking heavy damage until the attacking vessel can be destroyed. Sisko is seriously wounded, with only Kira taking care of him, while Worf is making his way down to engineering. Quark and the Karemma Hanok are in the mess hall when another torpedo penetrates the wall but doesn't go off. While the crew are working to destroy the remaining Jem'Hadar vessel using a decoy and the deflector as a phaser, the two successfully disarm the weapon.

Little Green Men Stardate not given: On a vessel provided by cousin Gaila, Quark, Rom and Nog are en route to Earth where Nog is going to join Starfleet Academy. However, Gaila has sabotaged the shuttle. The emergency landing on Earth is successful, but the three Ferengi find themselves at a place called Roswell in the year 1947. The three "Martians" are captured and questioned by the US Military. While Quark is trying to make profit dealing with the "primitive" humans, Nog tells them exactly what they want to hear - that an alien invasion fleet is on the way. With the help of Odo, who has been disguised as a dog, the three manage to escape from the facility, taking advantage of a nuclear blast to return to their time.

The Sword of Kahless Stardate not given: Worf and Jadzia join the famed old warrior Kor on the quest for the Sword of Kahless, the first bat'leth built by the founder of the Klingon culture, an artifact that was stolen from the Klingon homeworld centuries ago. All they find is an empty treasury chamber devoid of artifacts. But Worf isn't willing to give up, and he finally discovers the sword. However, Toral, Son of Duras, is already awaiting the three. Kor, Worf and Jadzia prevail, but Worf is wounded. When they are on the way back to the surface, a struggle between Worf and Kor ensues. After defeating Toral once again, the two Klingons face off in a battle for the bat'leth, on the verge of killing each other. Jadzia has to stun them. Later, aboard the runabout, the three decide to beam the bat'leth into space so it can't do any more damage.

Our Man Bashir Stardate not given: Bashir, Julian Bashir has invited Garak to play a secret agent program in the holosuite, when an emergency beam-out forces Commander Eddington to store the patterns of Sisko, Kira, Dax, Worf and O'Brien all over the station. Some of Bashir's holodeck characters take on the appearances of his fellow officers. Kira is now a Russian agent, O'Brien appears as a thug named Falcon, Worf aka Duchamps assists the villainous Dr. Noah, Dax plays the missing scientist Honey Bare, while Sisko is Dr. Noah himself. With the safety protocols offline and no chance to end the program without killing the crewmates, Bashir and Garak have to carry on playing. It is Noah's plan to shrink Earth's surface using laser cannons developed by Honey Bare. With everyone else drowning as the oceans flood the planet, Noah is going to build a new civilization on top of the Mount Everest. While Rom is working on the holodeck, Dr. Bashir gains the decisive seconds when he, to everyone's surprise, activates Dr. Noah's devilish system and destroys the planet. Sisko, Kira, Dax, Worf and O'Brien can be rematerialized on the transporter pad of the Defiant.

Homefront / Paradise Lost Stardate 49170.6: When evidence is discovered that a bomb explosion on a conference between the Federation and the Romulans has been caused by a Changeling, Sisko and Odo are summoned to Earth. President Jaresh-Inyo is reluctant to agree to more security measures against the Dominion threat when Odo impressively demonstrates how easy it would be for him to infiltrate the office. Odo and Sisko meet with Commander Benteen and Admiral Leyton when Odo uncovers the admiral as another Changeling. Meanwhile, Captain Sisko's father Joseph has been arrested for refusing the blood screening which, in his view, is useless to actually recognize Changelings. The following night all power systems on Earth go offline. Sisko and Leyton urge Jaresh-Inyo to declare a state of emergency on the planet. Sisko discovers that not the Dominion but members of Starfleet Academy's Red Squad are responsible for the sabotage. They acted on Leyton's order in an attempt to overthrow the government. Leyton relieves Sisko of duty when the captain refuses to take part in the plot. Sisko manages to inform Deep Space Nine before a feigned blood test in front of the president exposes him as a Changeling. Leyton sends the Lakota under Benteen's command to intercept the Defiant, claiming that the ship is full of Changelings. But Benteen rejects the order to destroy a Starfleet vessel. When Leyton, who has been deserted by his most loyal officer, gives up, order on Earth is restored.

Crossfire Stardate not given: Prime Minister Shakaar is visiting the station to negotiate Bajor's admission to the Federation. Odo, who is secretly in love with Kira, notices that Shakaar is falling in love with her. Meanwhile Odo has received notice that "The True Way", a Cardassian terrorist group, is planning to assassinate Shakaar. In his jealous negligence Odo forgets to verify a security code upon which the sabotaged turbolift with Shakaar, Kira and himself almost plunges down. While Worf succeeds in apprehending the saboteur, Odo spends the whole night waiting in front of Kira's quarters where Shakaar stays until the morning. Odo decides to call off the weekly meetings with Kira and to care about nothing else but his job from now.

Return to Grace Stardate not given: En route to a Cardassian outpost, Kira meets Gul Dukat who was demoted to a freighter captain when he brought his daughter, Tora Ziyal, to Cardassia. Kira joins Dukat in an effort to outfit the freighter with improved tactical systems. In the hopes of redeeming himself, Dukat lures a Klingon Bird-of-Prey in a trap, making the crew of the warship believe that the freighter holds a valuable cargo and then firing the newly installed disruptor. After seizing control of the Bird-of-Prey, Dukat transports the Klingon crew to his own ship and destroys it. When he learns that the Cardassians strive to negotiate with the Klingons, Dukat decides to continue the fight against the enemy alone. Kira does not want to join his quest and takes Tora Ziyal to Deep Space Nine.

Sons of Mogh Stardate 49556.2: Worf's brother Kurn arrives at the station. Disgraced because of Worf's refusal to follow Gowron, Kurn demands that his brother kill him in the Mauk-to'Vor ritual. Worf complies, but thanks to Dax' and Odo's interference Kurn can be revived. In order to give his life a new meaning, Kurn joins Odo's security team. But soon he attempts to get killed in an attack. In the meantime Klingon ships are engaged in exercises around the Bajoran system. Worf finds out that the Klingon ships are going to deploy mines to cut off Bajor from the Federation. In genetic disguise he and Kurn steal the plans from a Klingon vessel. Worf decides to save his brother by giving him a new identity. With Kurn's features altered once again and his memory erased, he joins a new Klingon family.

Bar Association Stardate not given: When Rom collapses while working in his brother's bar and is taken to the infirmary, Dr. Bashir suggests that he found a union to enforce higher salaries and sick leave. When Quark refuses to comply with the demands, the staff of his bar goes on strike. Liquidator Brunt from the FCA arrives to settle the strike at all cost. After Brunt's Nausicaan thugs have beaten up the bar owner as an example, Quark secretly agrees to his brother's demands as long as Brunt has no knowledge of it. Rom, however, quits his job and begins to work as a technician on the station.

Accession Stardate not given: An old Bajoran ship emerges from the wormhole. It carries the poet Akorem Laan who encountered the Prophets 200 years ago and hence believes to be the true Emissary. Sisko, who was never happy with his role as a religious icon, agrees with Akorem's claim. But soon Akorem announces the restoration of the old Bajoran caste system. This would preclude Bajor's membership in the Federation, but even Kira Nerys complies when she announces that she would become an artist like her forefathers. When a murder occurs on the promenade deck because of the new fanaticism, Sisko decides to force a decision. He flies into the wormhole with Akorem Laan and consults the prophets. They tell him that Akorem's presence was just a test for the true Emissary. Akorem Laan is sent back without a memory of the events.

Rules of Engagement Stardate not given: Worf is on trial for destroying an unarmed transport vessel while in command of the Defiant, fighting against Klingon warships. The Klingon advocate Ch'Pok accuses Worf of acting ruthlessly only to demonstrate that he is still a true Klingon. Worf's crewmates try their best to speak in his favor, but when Worf angrily attacks Ch'Pok who provokes him, the advocate's case seems to be proven. However, it turns out that every passenger of the allegedly destroyed transport had survived a ship accident a few months earlier, only to coincidentally die in Worf's attack, proving that the appearance of the transport was feigned.

Hard Time Stardate not given: A devastated O'Brien returns from the Argrathi who sentenced him to 20 years in prison - a memory that was implanted into his brain. Dr. Bashir determines that he couldn't remove this memory without erasing O'Brien's brain. The chief engineer keeps hallucinating about his cellmate Ee'char. At one point he ticks off and almost hurts his daughter Molly. O'Brien decides to end the ordeal by putting an end to his life. Bashir finds him in a cargo bay, ready to pull the trigger of a phaser. O'Brien finally reveals his greatest pain that, as a part of his punishment, he is supposed to believe that he killed Ee'char. Dr. Bashir can convince him to undergo a therapy consisting of medication and counseling to overcome these feelings. 

Shattered Mirror Stardate not given: Jennifer Sisko appears on Deep Space Nine and takes her "son" Jake to where she comes from, the Mirror Universe. When Ben Sisko follows them using a device she left behind, he is welcomed by "Smiley" O'Brien and other rebels from that universe who have gained control of Terok Nor. The fleet of the Klingon-Cardassian Alliance led by Regent Worf is approaching the station, while the rebels are working to finish their copy of the Defiant - with the help of Captain Sisko whose son is in their hands. Sisko decides to lead the rebels' attack himself, and the small agile fleet proves successful against the crude warships of the Alliance. When Jennifer Sisko is about to send Jake back to his universe, Intendant Kira, who has been a prisoner of the rebels, steps into their way. Kira points her weapon at Jake, but Jennifer jumps into the line of fire and dies soon after. 

The Muse Stardate not given: Lwaxana Troi surprises Odo with the announcement that she is pregnant. The father, her husband Jeyal, is a Tavnian who demands that the boy be raised by him alone until he is 16. In order to help her keep the baby, Odo agrees to marry Lwaxana in a Tavnian ceremony that would automatically invalidate her current marriage. Odo even manages to convince Jeyal of his sincere feelings for Lwaxana as the Tavnian laws demand. In the meantime Jake Sisko has spent a lot of time with a mysterious woman named Onaya who has apparently inspired him to write better than ever. But Onaya is literally sucking out Jake's life in the process. It turns out that she is actually an energy being who lives from neural energy that she drains while stimulating the victim's neural cortex.

For the Cause Stardate not given: While Deep Space Nine is expecting a shipment of replicators for Cardassia, a security inspection reveals that Kasidy Yates, Benjamin Sisko's love interest, may be working for the Maquis. The Defiant secretly pursues Kasidy's freighter into a nebula where it meets with a Maquis ship. When Kasidy is leaving Deep Space Nine for another rendezvous with the Maquis, Sisko is on her heels again, this time to apprehend everyone involved. But the second rendezvous is just a ruse. Back on the station Commander Eddington, who is working for the Maquis, overwhelms Kira, transfers the replicators to a Vulcan freighter and escapes. While Ben has the sad duty to arrest Kasidy, he vows to hunt the traitor Eddington.

To the Death Stardate 49004.2: A Jem'Hadar task force heavily damages the station. When the Defiant pursues them through the wormhole, they run into a disabled Jem'Hadar ship from where the crew rescues six Jem'Hadar, led by Omet'iklan, and one Vorta, Weyoun. The Vorta reveals that the attackers were renegades, and that they are going to repair an Iconian gateway that could give them control over a large number of planets. Starfleet and Weyoun's Vorta form an uneasy alliance. When Worf is attacked by a Jem'Hadar, Omet'iklan executes his man - and he expects Sisko to kill Worf likewise. The captain naturally refuses, and Omet'iklan announces that he would kill Sisko when their alliance is over. During the successful battle against the renegade Jem'Hadar, Sisko saves Omet'iklan's life despite everything. The Jem'Hadar leader spares Sisko but kills Weyoun who had kept important information from him. 

The Quickening Stardate not given: The Jem'Hadar introduced a terrible plague called the Teplan blight to the Teplans. In its final stage, the "quickening", the blight is extremely painful. The alleged healer Tevean actually poisons his patients to relieve them of their pain. Dr. Bashir, however, is determined to help the Teplans cure the disease. Beginning with the pregnant woman Ekoria as a volunteer, he develops what he thinks may be a cure. But the antigen he injects has a disastrous effect because in combination with the radiation of his instruments it only accelerates the quickening. Still, Bashir finds that while Ekoria herself can't be saved, her child has not contracted the disease, so the next generation of Teplans will be healthy again.

Body Parts Stardate not given: Quark returns from Ferenginar with the distressing diagnosis that he has the Dorek syndrome, and only one week left to live. In order to pay off his debts, he decides to put up his remains for bidding on the Ferengi Futures Exchange. After an initially depressing lack of interest someone suddenly places a huge bid of 500 bars which Quark gladly accepts. But then he receives notice that the diagnosis was wrong. The bidder, however, is Liquidator Brunt, and he insists on the fulfillment of the contract - otherwise Quark would remain an outcast forever. Quark makes provisions to let Garak execute him when he dreams of the first Grand Nagus Gint who gives him the advice to break the contract. Knowing that the Ferengi will despise him for that, he returns the 500 bars to Brunt, only to learn that his friends on the station are more important than all his other assets. In the meantime, Keiko O'Brien's unborn child had to be transferred into Kira's womb after an accident. Kira moves into the O'Briens' quarters to be close to the family of the child she is now carrying.

Broken Link Stardate 49962.4: Odo is brought to the infirmary because he can't maintain his solid form any longer. When Dr. Bashir is unable to help him, Odo requests to be taken back to his people, the Founders. On the way to their homeworld, the Defiant encounters a Jem'Hadar vessel with a Founder on board who is already waiting for Odo. The Founders have obviously caused the disease to force Odo to return and to be put on trial for killing one of his kind. While the Defiant is in orbit, Garak attempts to fire at the Founders' Great Link on their homeworld, but Worf stops him. Odo's is converted by his people to a "Solid", more precisely to a human being, as a punishment. Upon their return to Deep Space Nine, Odo makes an alarming discovery about something the Great Link was attempting to hide from him: Gowron, who is just on a display declaring war against the Federation, is not a Klingon but a Founder!

Proceed to DS9 Season 5

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