The Babylon 5 saga continues! Travel across the galaxy with John Sheridan as he unexpectedly finds himself transported through multiple timelines and alternate realities in a quest to return home. Along the way, he reunites with some familiar faces while discovering cosmic new revelations about the history, purpose, and meaning of the Universe.

Col. Lochley asks a Catholic priest to come to Babylon 5 a few days before President Sheridan arrives for the Interstellar Alliance's tenth-anniversary celebration. A crew member who recently returned from a vacation on Earth had been complaining of hearing voices before finally barricading himself in a section of the station. The crewman, Burke, is now restrained within a security cell and claiming to be possessed by a demonic spirit.  When a technomage predicts that a young Centauri prince will someday become the Centauri emperor and destroy humanity, ISA President John Sheridan must decide whether to assassinate the prince.

After being punished for retreat from combat, Ranger David Martel is given command of the Liandra, a haunted 20-year old Minbari fighting ship. He's escorting ambassadors to a secret archaeological site, the oldest city on record and a clue to a dangerous ancient race. Babylon 5: The Legend of the Rangers takes place in 2264 after the wars are over and a new age of space exploration has begun. The Interstellar Alliance has been organized to establish and maintain peace among its member worlds, including Earth. The Rangers are an elite military force made up of hand-picked young, smart, dedicated human and alien members who combine the high-tech elements of space travel with the idealism and honor of the knights of old. They encounter a previously unknown alien race, the Hand, whose lethal power is far greater than any force previously known to Earth or any other world in the Interstellar Alliance.

A technomage named Galen predicts an imminent attack by the Drakh, the old allies of the Shadows, seeking revenge against Earth. Through dreams, a thief, a captain, and a president are brought together to head them off. The president is John Sheridan. Because of his irrational behavior, Sheridan's friends begin to wonder about his sanity. It's up to all of them and two prototype battlecruisers, the Excalibur and the Victory, to stop the fleet and their planet-killer. But is there more to the Drakh's plan?

Twenty years after his death and resurrection at Z'ha'dum, and the end of the Shadow War, Sheridan feels his life force ebbing away and invites some old friends to gather for a final time.

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. Elsewhere, Lennier makes a terrible choice and must face the consequences. Finally, Sheridan and Delenn leave for Minbar, where the Interstellar Alliance's recently finished headquarters are located.

Captain Lochley now has solid proof that Garibaldi is a disaster magnet: when he comes to the station to meet with one of his new company's subordinates, she's being sued by the owner of an illegal virtual reality "holo-brothel" and besieged by Soul Hunters looking for one of their soul vessels, this one containing the souls of the long-lost Ralga alien species. An archaeologist brought his most recent find to Babylon 5: an orb containing one billion souls of an extinct race. When a Soul Hunter arrives to recover the souls, they escape and wreak havoc throughout the station, leaving Lochley, Zach, and Garibaldi to save the station.

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 prepares to leave Babylon 5 with Lyta, though not everybody is happy about it.

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

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.

When leftover Vorlon technology unleashes an ancient and overwhelming alien force that influences people's minds, Babylon 5 is all that stands between these new enemies and the total annihilation of all life.  

As 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. Elsewhere, Vir hires Franklin and Lyta to investigate why the Drazi don't return the bodies from destroyed Centauri ships.

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 withdrawal from the Alliance, making it clear that they will circumvent the blockade by force if necessary.

Lennier risks his life to investigate Centauri signals that may be connected to recent attacks. On the station, Lyta tries to continue Byron's dream of finding a homeworld for telepaths, and Lise visits Garibaldi only to discover he's drinking again.

Lennier undergoes Ranger training aboard one of the White Star vessels, while secretly on a mission for Delenn and the Alliance. Back on Babylon 5, the Drazi bug Londo's quarters and face the wrath of Vir.

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.

The Alliance gets a break in their investigation of recent shipping line attacks, when they discover a possible witness may have survived 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.

The standoff between the telepaths, the Alliance and the Psi Corp continues and the fight with the violent faction of Byron's followers intensifies... until the rogues seize medlab - with Garibaldi and Franklin in it.

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

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 Interstellar Alliance council to give him and his telepaths a homeworld of their own.

After the Brakiri purchase a piece of the station for a religious festival, Babylon 5 becomes part of the their 'Day of the Dead' celebrations. At the same time, comedians Rebo and Zooty arrive to do a show on the station.

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.

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.

Two Anla'Shok elders arrive from Minbar with a status report for Delenn, bringing with them two new Ranger recruits. Meanwhile, a Downbelow racketeer makes plans to assassinate Zack, and Garibaldi investigates Lochley's background.

As Babylon 5 comes under attack by an alien race, maintenance workers Mack and Bo work to keep the station running.

Sheridan clashes with the various member worlds of the Alliance over the Declaration of Principles, and an isolated world asks for the Alliance's help in defending themselves against Raiders. Meanwhile, Garibaldi tries forming an intelligence unit of telepaths.

Londo suffers a heart attack and falls into a surreal dream, where he must face his greatest fear in order to survive. Elsewhere, Delenn learns that Lennier is planing to leave Babylon 5 to join the Rangers.

Sheridan is targeted by an assassin in the lead up to his inauguration as President of the Interstellar Alliance. At the behest of Sheridan, Elizabeth Lochley arrives from Earth to take command of Babylon 5, just as a group of rogue telepaths come to the station seeking sanctuary.

The Earth military encounters an alien race called the Minbari. Through a series of accidents and misunderstandings, a war breaks out that nearly results in the death of every human on Earth. The war and its aftermath provide the background for this series.