After he has recovered from the shock of seeing her, Anna gives Sheridan an ultimatum - come to Z'ha'dum with her, or never know what happened to her there.

The renegade destroyer "Alexander" arrives at Babylon 5 and Sheridan is forced to announce the station's secession from the Earth Alliance, and prepare for an attack by Clark's forces. Meanwhile, Delenn is forced to go to Minbar when the Grey Council refuses to act upon increased Shadow activity.

While Sheridan is unstuck in time, seeing a glimpse of a future Centauri Prime in ruins, the others continue with their plan to take Babylon 4 back in time.

Twenty years after his death and resurrection at Z'ha'dum, Sheridan feels his life force ebbing away, and invites some old friends for a final gathering.

In the hours before the Shadows and the Vorlons meet Sheridan's alliance at Corriana 6, Ivanova and Lorien search the last of the First Ones, and Londo races back to Centauri Prime in hope of removing all Shadow influence before the Vorlon planetkiller arrives.

The only obstacle remaining between Sheridan and Earth is a fleet near Mars. With the help of the resistance, Sheridan plans to smuggle Shadow modified telepaths onto the fleet, hopefully disabling it long enough for him to take Earth. Meanwhile, Marcus is determined to find a way to help Ivanova.

Ivanova gets a distress call from herself pleading for help as the Shadows destroy Babylon 5. It is dated eight days into the future. At the same time, on Minbar, Sinclair is given a nine-hundred-year-old letter from Valen, telling him that a drastic action must be taken to prevent that future.

Two officials from the Ministry of Peace come to Babylon 5; one to deal with the Centauri's continued expansion, and the other to check on the local Nightwatch. Meanwhile, a Narn heavy cruiser seeks sanctuary while they make repairs, and Keffer continues his search for proof that Shadow ships exist.

As reports that the Shadows are destroying planets too start to come in, Sheridan prepares for one final showdown with the Shadows and the Vorlons. Meanwhile on Narn, Londo makes everything ready - G'Kar's chains have been weakened and an undetectable weapon has been acquired. Tonight Cartagia must die.

Sheridan is shocked to learn that one of the crew of the Icarus, a science ship that exploded with his wife aboard, is alive - namely Mr. Morden. A representative of the Ministry of Peace comes to the station to recruit personnel to the Nightwatch.

With Clark having killed 10,000 unarmed refugees, Sheridan once again mobilizes for war. The first target is Proxima 3, which is being bombed into submission. At the same time, Londo tries to get G'Kar to partake in a joint Centauri-Narn statement in support of the war against Clark.

The aging Centauri emperor travels to Babylon 5 despite his failing health. Refa sees this as an opportunity to have Londo publicly embarrass the emperor, while G'Kar prepares to assassinate him.

Clark has just declared martial law, and while Nightwatch prepare to take control of the station, Zack has to decide whose side he's on. In an exercise of bad timing, the prophetic widow of emperor Turhan finally comes to the station, granting Londo the visit he's been begging her for, for a long time.

Clark is dead and the civil war over, but several issues are unresolved. Ivanova is grief-struck at Marcus death and Lise is missing, and Sheridan must now face the consequences of his actions. He did the right thing - but in the inconvenient way.

With the Shadows next target known, a massive counterattack is prepared. Ivanova and Marcus scout ahead in the White Star, while the fleet stands by in hyperspace. At the same time, Franklin finally has to face his problems as he lies fatally wounded in Downbelow.

Garibaldi is barely able to convince Lyta and Franklin that his recent behavior was caused by Bester, and they organize a rescue for Sheridan. Meanwhile, Ivanova gets word that a trap has been set at the fleet's next rendezvous point by a group of completely new advanced-technology destroyers.

Draal reveals himself to Sheridan, while Refa and Londo set a plan in motion that will lead to the final defeat of the Narns.

The Centauri are about to withdraw from a quadrant of space because the Narn are harassing them, when Londo gets an offer to take care of the problem. Meanwhile, Garibaldi tries to find out what his informant stumbled upon that got him killed.

As Centauri Prime is being bombarded, the Drakh, the real masters behind the war, reveal themselves to Londo. They force him to go along with their plan to alienate the Centauri from the Alliance, and use what's left as their new home.

Morden returns to secure Londo's cooperation again, Garibaldi confronts Franklin about the stims, and Kosh gives Sheridan a victory against the Shadows - but at a price.

An Earth Force investigator comes to Babylon 5 with Lt. Keffer's last recording, asking the ambassadors if they recognize the ship in it. Meanwhile, Londo takes steps to remove himself from the Shadows, and Sheridan takes the White Star out for its first mission.

An archaeologist arrives at Babylon 5 with a grave massage: a dormant Shadow ship has been found on Ganymede. It must be destroyed before it falls into the hands of President Clark.

Sheridan finally authorizes the White Star fleet to participate in the war. Delenn travels to Minbar to start a Minbari-Earth joint project to build a prototype White Star destroyer class ship. Vir hires Franklin and Lyta to investigate why the Drazi don't return the bodies from destroyed Centauri ships.

Londo forces Vir to participate in a plan to kill G'Kar. Sheridan struggles with figuring out the Shadows' tactics.

On Z'ha'dum, Sheridan floats somewhere between life and death. Meanwhile, G'Kar risks imprisonment to try to find Garibaldi.

Ivanova and Marcus take a White Star out to search for more first ones to aid in the war, while Londo tries to convince G'Kar to swallow his pride so Cartagia will find him entertaining. A mysterious spacecraft makes its way towards Babylon 5.

Babylon 4 reappears at the same place it disappeared four years before, and Sinclair and Garibaldi lead an expedition to evacuate its crew. Meanwhile, Delenn is summoned by the Grey council. They inform her that they have selected a new leader - her.

The warrior caste has surrounded the religious caste's stand in the capital city on Minbar, and demand they surrender or be destroyed. Meanwhile, Bester makes Lyta an offer for her body.

After arranging for the arrest of Sheridan's father, Garibaldi gives his former commander the news, and urges him to come to Mars to arrange a rescue operation. But Garibaldi drugs Sheridan as soon as he gets there, and hands him over to Clark's forces. Finally, Edgars reveals his plans to Garibaldi.

Bester comes to Babylon 5, this time seeking help against a common enemy - the Shadows. Meanwhile, G'Kar demands to be included in the War Council.

The situation heats up when an Earth Force heavy cruiser arrives to "protect Earth's interests", and the fusion reactors on Epsilon 3 start going out of control, and may blow up the planet and Babylon 5.

With the Vorlons destroying whole worlds, Babylon 5 is struggling to cope with the refugees. And with one Vorlon aboard, they cannot make a move without them knowing about it, so Sheridan decides to kill him. On Centauri Prime, Cartagia explains to Londo how he will become a god when the Vorlons destroy the planet.

Lyta Alexander returns to Babylon 5 with a message from the telepath resistance: one of the command staff is a mole for PSI Corps.

Garibaldi is surprised when an old friend comes to Babylon 5 to fight in the "Mutai" - a savage alien fighting arena. Meanwhile, Ivanova has trouble dealing with her father's death.

A man comes to Babylon 5 asking the alien ambassadors for information that can help him with his quest to find the Holy Grail, while a Downbelow gangster gives security problems by mind-wiping all who oppose him.

A mysterious man comes to Babylon 5 dressed in chainmail and armed with a sword. His name? King Arthur - Son of Uther Pendragon, come to help when he is needed most.

Bester arrives at the station to arrest the Downbelow telepaths, and Londo barely escapes an assassination attempt when the ship he was to be aboard explodes.

Dr. Franklin gets a visit from an old friend and former mentor, xenoarchaeologist Dr. Vance Hendricks who wants Franklin's help to analyze some organic artifacts he found on a dead world. But the artifacts seem to have a will of their own and start to manipulate Hendricks' assistant.

There is an explosion in one of the fighter bays just days before the president is to visit Babylon 5. A dying man implicates Garibaldi, which is just what the head of presidential security wants to hear, as she blames him for her father's death.

As more telepaths arrive at the station, the denizens of Downbelow start taking notice. Tensions build until one of the telepaths is assaulted, and the others decide to take revenge - against Byron's wishes. Meanwhile, Franklin tries to find out why the Hyach are hiding part of their medical history.

An alien couple comes to Dr. Franklin with their fatally ill son. The child could be cured by a simple operation, but the parents' religion specifically forbids it. Meanwhile, Ivanova escorts a damaged star liner through raider territory.

Londo unknowingly falls for a beautiful slave, whose owner wants her to steal sensitive information. Garibaldi discovers that someone is using a restricted communications channel.

A badly damaged ship is brought into the station and the strange alien inside is identified as a soul hunter - an immortal race who can sense death and supposedly steal someone's soul.

Four rangers come from Minbar with a status report to Delenn, while a Downbelow racketeer decides it's time to get rid of Zack.

A racist group is terrorizing non-humans on Babylon 5. Meanwhile Londo has trouble with two young Centauri who want to break with tradition by ignoring their arranged marriages, and instead marry for love.

A telepath murders his roommate and escapes on a ship bound for Babylon 5. Bester is given the job of capturing him, and brings along two PSI Cop interns to show them how he works.

When the Narn attack a Centauri colony, Londo and G'Kar nearly come to blows. Meanwhile, raiders are attacking transport ships near the station.

Londo collapses from a heart attack, and must battle with his guilt in a dream state. Delenn learns that Lennier is planing to leave Babylon 5 to join the Rangers.

Marcus starts snooping around Downbelow when some of his contacts start behaving unusually and a lurker is found dead with a strange creature bonded to his spine. Ivanova investigates Corwin's loyalties when he receives a promotion.

Sinclair's old flame, Catherine Sakai, arrives during a week-long festival when humans and aliens demonstrate their dominate religious beliefs. An old enemy sends an assassin to kill G'Kar.

Delenn reassigns Lennier to a Ranger training mission on the border of Centauri space, hoping he can find some proof regarding the Centauri involvement in the shipping line attacks. Vir undergoes some dramatic changes when he learns that he is the new Centauri ambassador to Babylon 5.

Londo starts to suspect that all is not right on Centauri Prime, when a good friend is murdered. On Babylon 5, Byron tries to force the council to give him and his telepaths a homeworld of their own.

More bloodhound units arrive and the fight with the violent faction of Byron's followers intensifies until the rogues seize Medlab - with Garibaldi and Franklin in it.

Lochley takes command of Babylon 5 and Byron petitions her for asylum aboard the station. An assassin pledges to kill Sheridan at his inauguration.

A Minbari war cruiser comes to Babylon 5 to display the body of a recently dead Minbari leader, while Ivanova and Talia battle for the fate of a young girl with newly discovered telepathic powers.

A bomber is loose on Babylon 5; setting of bombs with seemingly no pattern. G'Kar blames the Centauri, Londo blames the Narn - and in it all, Lennier is critically injured. At the same time, a group of monks request permission to live on the station.

Marcus and Franklin meet their liaison to the Mars resistance, but are greeted at gunpoint by the resistance itself. Meanwhile, Sheridan confronts Garibaldi about his attitude.

Sinclair's decisions the last year catch up with him, when an internal affairs investigator arrives to test the crew's loyalty to Earth Force with the help of a telepath. And Lennier shows great interest in Garibaldi's attempt at assembling a 1990's motorcycle.

The station's dock workers stage an illegal strike after an accident in the docking bays. G'Kar tries to take part in a Narn religious ceremony, but must find a replacement G'Quan-Eth plant that was destroyed in the accident.

The telepaths have barred themselves inside an area of Downbelow, and their telepathic tricks force Lochley to ask Bester for help. G'Kar finds an old friend locked in a cell in the Centauri palace.

Garibaldi investigates an area where a maintenance worker disappeared and finds a whole floor that was forgotten after construction, including its rather strange inhabitants. Meanwhile, Delenn is about to take on the role of Ranger One, but Neroon swears to stop her.

Londo gets a visit from an old friend who seeks his help after being called a traitor by the Centarum. Sheridan starts hallucinating after being attacked by a dead alien.

It looks like the Alliance will get a break in the investigation of the recent shipping line attacks, when a possible witness may have survived the latest attack and taken refuge on the Drazi homeworld. Garibaldi is sent to find him, but the Intelligence Chief's alcohol problem complicates the mission. G'Kar returns to Babylon 5 to discover that his book has been published, and he is now a revered religious figure.

A small world plagued by raiders begs the alliance for help. Garibaldi tries forming an intelligence unit of telepaths.

Na'Toth attacks an alien woman that has just arrived on the station, claiming that she is the Dilgar war criminal Jha'dur - known as Deathwalker. Meanwhile, Talia is hired by Kosh to oversee some rather strange negotiations.

A 100-year-old space exploration ship appears near Babylon 5 with two passengers - a woman in cryogenic sleep, the corpse of her husband, and something sinister that has unfinished business with a half mad lurker.