The Gathering: The Vorlon ambassador is nearly killed by an assassin shortly after arriving at the station, and Commander Sinclair is the prime suspect.
Soul Hunter: Delenn is in danger when a soul hunter, an alien who captures the souls of the dying, arrives at the station.
Born to the Purple: Londo's career is in jeopardy when a beautiful slave seduces him and steals a sensitive computer file. Garibaldi investigates an unauthorized use of a restricted communications channel.
Infection: An archaeologist smuggles ancient artifacts onto the station, unleashing a living weapon.
The Parliament of Dreams: Sinclair's old flame, Catherine Sakai, arrives during a weeklong festival when humans and aliens demonstrate their religious beliefs. An old enemy sends an assassin to kill G'Kar.
Mind War: Talia's old Psi Corps instructor, the victim of a secret experiment, is the target of a manhunt involving the Psi-Cops. Catherine wants to survey a promising planet for possible mining, but G'Kar warns her to stay away.
The War Prayer: A violent attack on a Minbari poet rocks B5 and leaves Sinclair scrambling to flush out a vicious pro-Earth group. Two star-crossed young Centauri lovers seek Londo's protection. Ivanova is shaken when a man from her past arrives at the outpost.
And the Sky Full of Stars: Sinclair is kidnapped and interrogated by members of a pro-Earth group, determined to find out what transpired when the commander was briefly missing in action during the final battle of the Earth/Minbari war -- something Sinclair has never been able to remember.
Deathwalker: The station becomes a hotbed of galactic controversy when Sinclair is forced to protect a notorious war criminal -- a scientist who's invented an immortality serum. Ambassador Kosh hires telepath Talia Winters to oversee a very unusual negotiation.
Believers: Dr. Franklin asks Sinclair to intermediate with an alien family who, because of their religious beliefs, refuses to allow surgery that would save their dying child.
Survivors: Garibaldi's past catches up to him, with some disastrous consequences. He's blamed by some for an accident aboard B5, which leads to hitting the bottle again after a prolonged abstinence.
By Any Means Necessary: An accident in the docking area kills a worker, threatening to spark an illegal strike. Londo interferes in an important Narn religious observation which leads to a confrontation between him and G'Kar.
Signs and Portents: A sharp increase in raider activity has the station on the defensive. Londo obtains a priceless Centauri artifact. A mysterious stranger visits the station's alien ambassadors.
TKO: An old friend of Garibaldi's arrives and tries to take part in a dangerous alien combat sport. A rabbi helps Ivanova come to terms with her father's death.
Grail: A traveller comes to B5, seeking the Holy Grail. A series of unexplained attacks on several Lurkers may be linked to Ambassador Kosh.
Eyes: An internal affairs investigation to find out what's been going on at B5 leads to Sinclair having a problem with the military when he has to answer for his actions in settling the labor strike, as well as other decisions made during the course of the season. Ivanova confronts a member of Psi-Corps, as well as her own fears, when she is told to submit to a scan.
Legacies: A girl entering puberty exhibits telepathic abilities, and the crew must decide whether to turn her over to the Psi Corps. The corpse of the Minbari military leader who oversaw the Battle of the Line is the focus of a diplomatic incident.
A Voice in the Wilderness, Part I: Seismic activity on the planet near the station uncovers what may be signs of an extinct alien civilization. An old mentor pays a visit to Ambassador Delenn. The unrest on the Mars Colony intensifies.
A Voice in the Wilderness, Part II: Sinclair fights two turf battles at once as alien invaders claim the planet the station orbits, and an Earthforce captain disagrees with him about how to deal with the situation.
Babylon Squared: Babylon 4 returns as abruptly as it vanished, but its reappearance may bode ill for the future. Delenn receives a momentous offer.
The Quality of Mercy: Talia is involved in carrying out the sentence of a convicted murderer. Dr. Franklin investigates a possible medical scam in Downbelow. Londo takes Lennier for a look at the less savory sections of the station.
Chrysalis: First Season finale. A dying man leads Garibaldi to a discovery that could cost him his life. Londo receives help in a dispute with the Narns. Something begins to happen to Delenn.
Points of Departure: Second season premiere. As a new commander assumes control of the station, a renegade Minbari warship arrives, threatening trouble.
Revelations: G'Kar brings news of a terrible new enemy. The arrival of Sheridan's sister opens up old wounds for the new commander. Dr. Franklin employs an unorthodox procedure to try to bring Garibaldi out of his coma. Delenn's mysterious change is completed.
The Geometry of Shadows: Ivanova is promoted and given a diplomatic assignment. Londo seeks affirmation from an unusual source.
A Distant Star: Disaster strikes an old friend of Captain Sheridan. Dr. Franklin offers nutritional advice to some reluctant patients.
The Long Dark: When a cryonic sleeper is awakened, a deadly, evil force is unleashed on the station.
Spider in the Web: Talia is caught in a treacherous web of intrigue after she witnesses a murder.
Soul Mates: Londo summons his three wives to Babylon 5. A mysterious man from Talia's past reappears.
A Race Through Dark Places: Bester asks Talia to investigate an "underground railroad" of unregistered telepaths.
The Coming of Shadows: When the Centauri emperor visits the station, Sheridan tries to keep G'Kar from going after him. Londo and Refa plot to expand their power. A mysterious man seeks out Garibaldi.
Gropos: Dr. Franklin's father arrives, leading 25,000 ground pounding soldiers on the station. The troops' arrival elicits fear from both humans and non-humans that the troops may be going on a secret mission that will involve the station becoming an armed camp.
All Alone in the Night: Sheridan is kidnapped and taken to an alien ship. The Grey Council decides Delenn's fate. General Hague makes an unofficial visit to the station.
Acts of Sacrifice: G'Kar asks Sheridan to intervene militarily on behalf of the Narns; Ivanova tries to institute an ambassadorship with a visiting alien.
Hunter, Prey: A fugitive with sensitive information about the Earth government flees to Babylon 5.
There All the Honor Lies: Sheridan is in hot water when he kills a Minbari warrior in self-defense.
And Now For a Word: Babylon 5 is embroiled in a deadly conflict between the Narn and Centauri; an ISN reporter covers the story and tours the station.
In the Shadow of Z'ha'dum: Sheridan discovers a connection between Morden and the death of his wife. The station is inundated by Narn refugees. A new Earth Alliance agency tries to recruit station personnel.
Knives: An old acquaintance requests Londo's help. Sheridan is plagued by visions nobody else can see.
Confessions and Lamentations: The outbreak of a fatal disease among the Markab population prompts a panic on the station; Dr. Franklin races against time to find a cure.
Divided Loyalties: Lyta Alexander, the station's first telepath, returns with a warning that one of Babylon 5's officers is an operative for a top-secret government organization. A long-held secret of another Babylon 5 officer is revealed.
The Long, Twilight Struggle: The Narn-Centauri War reaches a turning point. Sheridan is contacted by a powerful ally, who offers assistance.
Comes the Inquisitor: G'Kar tries to rally the Narn on Babylon 5. Kosh tests Delenn's allegiance by summoning an ancient inquisitor.
The Fall of Night: Second season finale. As the Centauri war escalates, a Narn warcruiser seeks help from Babylon 5. Earth takes a position in the war. Keffer makes a terrifying discovery. Kosh takes a drastic step to save a life.
Matters of Honor: Third season premiere. While an Earth official investigates the mystery ship encountered by Lt. Keffer in hyperspace, Londo attempts to sever his ties with Morden. Sheridan receives a new tool in the fight against the Shadows.
Convictions: A series of bombings threatens the station, and Ivanova calls on some unusual investigators to help solve the mystery.
A Day in the Strife: Sheridan and Ivanova try to deal with an association of cargo pilots. An alien probe makes first contact with the station. G'Kar's position among the Narn is threatened by the arrival of a Centauri-appointed liaison.
Passing Through Gethsemene: Lyta Alexander returns to the station at Kosh's behest. One of Theo's brothers discovers that he may have a hidden past.
Voices of Authority: Draal helps the crew attempt to contact more of the First Ones. Sheridan works to hide his conspiracy from the Nightwatch.
Dust to Dust: An addictive drug with telepathic effects is found on the station, prompting a visit by Bester. G'Kar reaches a turning point.
Exogenesis: Marcus and Dr. Franklin combat an invasion by parasitic aliens that attach themselves to humans. Ivanova investigates the possibility of bringing a new member into the conspiracy.
Messages from Earth: As the Senate continues to investigate President Clark, an archaeologist brings news of a development back home that forces Sheridan to act against the Earth government. The Nightwatch tightens its grip on the civilian population.
Point of No Return: As the Earth Alliance plunges toward civil war, internal strife threatens to shatter the command structure of B5. Zack's loyalties are put to the test when the Nightwatch is ordered to take over station security. Londo receives another glimpse of his destiny.
Severed Dreams: When President Clark tries to seize control of Babylon 5 by force, Sheridan is faced with the prospect of severing the station's ties with Earth. Delenn receives disturbing news from a Ranger.
Ceremonies of Light and Dark: The Nightwatch orders its members on Babylon 5 to target Delenn in an attempt to undermine Minbari actions during the recent crisis. Londo presents Refa with an ultimatum.
Sic Transit Vir: Londo introduces Vir to a surprising new acquaintance. A heavy influx of Narns to the station raises suspicions.
A Late Delivery from Avalon: As Sheridan and Ivanova try to gain recognition of the station's new status among the alien governments, a traveler arrives with an unbelievable story out of distant legend.
Ship of Tears: Bester finds himself at odds with others within the Psi Corps and seeks Sheridan's help, offering information about the Shadows in return. G'Kar presses for admission to the conspiracy of light.
Interludes and Examinations: Sheridan tries to rally support for his cause as direct confrontations with the Shadows begin in earnest. Friction increases between Londo and Morden.
War Without End, Part I: Ambassador Sinclair returns to pull Babylon 4 through time.
War Without End, Part II: Ambassador Sinclair returns to pull Babylon 4 through time. Many mysteries from previous episodes are resolved.
Walkabout: Lyta tests the limits of the Shadows' newly-discovered weakness. Dr. Franklin goes on a journey to discover his place in life, and meets a singer in Downbelow. The new Ambassador Kosh arrives on the station.
Grey 17 is Missing: Delenn agrees to lead the Rangers, but Marcus must protect her from a deadly threat. Garibaldi investigates a secret level of the station.
And the Rock Cried Out, No Hiding Place: Londo uses G'Kar and Vir to gain power in the Centauri Royal Court. Sheridan is consumed by his analysis of the Shadows' strategies.
Shadow Dancing: Sheridan launches a preemptive strike against the Shadows. Franklin jeopardizes his life while trying to do a good deed.
Z'ha'dum: Third season finale. A face from Sheridan's past takes him on a dangerous mission to meet his Shadow counterpart. Londo receives important news about his political future. The Shadows mass a fleet against Babylon 5.
Whatever Happened to Mr. Garibaldi?: G'Kar tries to avoid capture by the Centauri while continuing his search. Delenn urges the Rangers to strike against the Shadows.
The Summoning: Zack makes a discovery in the search for Garibaldi. Delenn continues to rally support for her plan to attack the Shadows. Babylon 5 welcomes the return of a familiar resident.
Falling Toward Apotheosis: The Vorlons step up their battle against the Shadows. Londo uncovers a new wrinkle in his plan to unseat Emperor Cartagia. Garibaldi is asked to remove Kosh from the station. Delenn gets a surprise.
The Long Night: As the Army of Light prepares to strike, Londo and Vir continue to plot Cartagia's downfall. Ivanova and Lorien look for more First Ones. The Shadows unleash a terrible new weapon.
Into the Fire: The Army of Light mounts its final assault. Londo learns some surprising information about Morden. The First Ones cross beyond the galactic rim.
Epiphanies: Bester arrives with news of an Earth Alliance plan to further isolate Babylon 5. Garibaldi resigns as security chief, and Zack takes over.
The Illusion of Truth: After suspicious news involving Sheridan's father surfaces, ISN sends a team to do a second story about Babylon 5.
Atonement: Delenn is recalled to Minbar to resolve a problem concerning her relationship with Sheridan, and must finally face up to her role in the Earth-Minbari War. Sheridan sends Marcus and Franklin to Mars on a secret mission.
Racing Mars: Franklin and Marcus embark on an undercover mission to Mars, posing as newlyweds. Sheridan confronts Garibaldi about his behavior.
Lines of Communication: Sheridan devises a plan to counter the false ISN reports. Dr. Franklin and Marcus address the Resistance leaders in an attempt to persuade them to follow Sheridan's strategy. Delenn makes plans to return home to avert a potential civil war.
Conflicts of Interests: Ivanova gives the first broadcast of "The Voice of the Resistance." Garibaldi accepts a new job on Mars. Sheridan proposes a plan to protect all Non-Aligned worlds from potential raiders.
Rumors, Bargains, and Lies: Sheridan manipulates the League of Non-Aligned Worlds into demanding protection of their borders from the White Star Fleet. Delenn meets with Neroon in a misguided attempt to work together to stop a civil war on Minbar.
Moments of Transition: Delenn makes the ultimate sacrifice for her people. Lyta accepts Bester's proposition in an act of desperation. Ivanova has horrific news for Sheridan. Scott Adams, creator of the comic strip, "Dilbert", makes a cameo appearance.
No Surrender, No Retreat
The Exercise of Vital Powers
The Face of the Enemy
Intersections in Real Time
Between the Darkness and the Light
Endgame
Rising Star
Sleeping in Light