The opening of a crucial space station is put in jeopardy when the commanding officer is accused of the attempted murder of a diplomat.

The Narn attack a Centauri colony, while Raiders attack transport ships. Talia Winters arrives at the station.

A mysterious alien who steals the souls of the living arrives on the station, putting Delenn's life in danger.

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

A living weapon wreaks havoc on the station.

A week long cultural festival is takes place on board the station. Catherine Sakai, Sinclair's old girlfriend, arrives on the station and G'Kar receives a death threat.

The Psi Cops arrive at the station to capture Talia's old Psi Corps instructor. Catherine is warned not to survey a sector of space by G'Kar.

A pro-Earth group attacks a Minbari poet. Two Centauri lovers seek Londo's help.

Sinclair is kidnapped by two men who want to know what happened to him when he disappeared in the final battle of the Earth-Minbari War, something that even Sinclair does not know.

A war criminal scientist who is the last of the notorious Dilgars is discovered on Babylon 5 bearing an extraordinary medication that all the powers want.

An alien family refuses surgery to save their dying child.

Garibaldi is blamed for an accident aboard B5, leading to his return to the bottle.

While the station's dock workers stage an illegal strike, G'Kar tries to hold a Narn religious ceremony, but Londo holds the plant he needs and won't relinquish it.

Londo obtains a priceless Centauri artifact and a stranger visits each alien ambassador asking only one question.

A disgraced boxer comes to Babylon 5 to compete in the Mutai, an alien fighting match. Meanwhile, an old friend visits Ivanova so that she can mourn the loss of her father.

A man searching for the Holy Grail arrives. Ambassador Kosh may be behind a string of attacks on the station.

Colonel Ari Ben Zayn of Earthforce Internal Affairs investigates Sinclair and his command staff for recent station actions.

A Minbari military leader's dead body disappears on the station.

Delenn's old friend and mentor Draal arrives on the station at the same time that an extinct civilization is found on the planet that Babylon 5 orbits. A revolt against the Earth Alliance breaks out on Mars.

Earthforce Captain Ellis Pierce and an alien race both lay claim to Epsilon III, the planet which Babylon 5 orbits. The revolt on Mars continues, leading to many casualties.

Babylon 5's immediate predecessor, Babylon 4, suddenly reappears after mysteriously vanishing four years earlier.

Talia must enter the mind of a convicted murderer while Dr. Franklin goes to Downbelow to investigate a doctor who apparently is 'magically' healing people.

Garibaldi investigates a death on the station which leads him to a terrible discovery.