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.

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.

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 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.

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.

Sheridan arrives at Babylon 5 to replace Sinclair and deal with a renegade Minbari Cruiser.

A giant explorer class ship comes to Babylon 5 for re-supply - its captain an old friend of Sheridan. Dr. Franklin gets on the command staff's nerves when he starts handing out "food plans".

Bester returns to Babylon 5 to shut down an underground organization that smuggles rogue telepaths out of the PSI Corps' reach. Meanwhile, Sheridan has some disagreements with Earth Force over the rent of his quarters.

Babylon 5 gets considerable space problems when 25,000 Earth Force soldiers arrive. Led by General Richard Franklin, Stephen Franklin's father, they are to use Babylon 5 as a staging point for a risky military operation.

The president's physician comes to Babylon 5 on the run from Earth Force special intelligence. They say he has classified information he plans to sell to alien governments, though Sheridan soon learns otherwise.

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.

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

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.

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.

Delenn decides it's time to try to contact some of the first ones and enlists the help of Draal, while Babylon 5 is assigned a political officer.

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.

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.

Vir returns to Babylon 5 to find that he now has a wife and that two Narns are out for his blood. Meanwhile, Ivanova investigates the activities of the mysterious Centauri Abrahamo Linconi.

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.

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.

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.

In the aftermath of the explosion on Z'ha'dum, Sheridan is presumed dead and Garibaldi is missing. Delenn struggles to keep the alliance against the Shadows together, and Londo takes up his new position on Centauri Prime as security advisor to the emperor.

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.

Bester comes to Babylon 5 with information about President Clark's plans to discredit the station. But it has a price tag attached - he wants them to go to Z'ha'dum to look for any leftover technology that might help revive his lover. Garibaldi resigns his position as security chief.

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.

Sheridan hatches an eccentric plan to convince the League to accept White Star patrols on their borders, while Delenn seeks help from Neroon to end the civil war that has broken out on Minbar.

As Sheridan's forces continue towards Earth, Garibaldi is finally allowed to meet his employer, William Edgars, face to face on Mars, and is after telepath assisted interrogation finally told what he must do to gain Edgars' complete trust. Meanwhile, Dr. Franklin discovers that Lyta can influence the Shadow modified telepaths.

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.