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

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.

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.

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.

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.

The Psi-Cops arrive at the station to capture a rogue telepath, Talia's old Psi Corps instructor. Catherine Sakai is warned not to survey Sigma 957 by G'Kar.

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.

Sinclair is kidnapped and interrogated by two men determined to prove he betrayed earth during the Battle of the Line.

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.

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.

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.

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.

A Centauri noble comes to Babylon 5 to transport an important relic in Londo's possession back to the homeworld. And a mysterious man visits all the alien ambassadors asking them an unusual question.

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.

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.

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.

Strange signals start coming from Epsilon 3, the planet below Babylon 5. A science ship is sent to investigate, but is fired upon by a defense system on the planet. Meanwhile, Garibaldi worries about a lover he left back on Mars, when fighting breaks out there.

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.

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.

Dr. Franklin investigates an unlicensed medical practitioner in Downbelow, while Londo takes Lennier for a tour of Babylon 5's seedier locales. And in the brig, a convicted murderer waits for his sentence to be carried out - the death of personality.

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.

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

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.

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

We see the action from the viewpoint of two maintenance workers as a race of savage aliens attacks the station.

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

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.

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.

The Brakiri buy a part of Babylon 5 for a religious ceremony where the dead are supposed to return. Comedians Rebo and Zooty arrive to do a show on the station.

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.

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.

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.

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 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.

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.

Lennier investigates Centauri signals that may be connected to the attacks. Lyta tries to continue Byron's dream of finding a homeworld for telepaths. Lise visits Garibaldi only to discover he's drinking again.

The evidence collected against the Centauri is presented to the council of the Interstellar Alliance, and a boycott against the Centauri is issued. In reaction, the Centauri withdraw from the Alliance and make it clear that they will circumvent the blockade by force if necessary.

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.

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.

Earth Force orders the arrest of Lyta for financing terrorism against the PSI Corps. Sheridan confronts Garibaldi about his drinking. G'Kar struggles with his growing mass of worshippers.

Tessa Holloran, former Number One of the Mars resistance, arrives with a warning for Lise and Michael: an assassin has been hired to kill them. Meanwhile, G'Kar gets ready to leave, though not everybody is happy about it.

It is near the end of 2262, and many changes are abound. Londo, G'Kar and Garibaldi have already left, and Franklin will be taking up his new position on Earth shortly. Finally, Sheridan and Delenn leave for Minbar, where the Alliance's recently finished headquarters are located.

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.