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

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.

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.

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.

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

The aging Centauri emperor travels to Babylon 5 despite his failing health. Refa sees this as an opportunity to have Londo publicly embarrass the emperor, while G'Kar prepares to assassinate him.

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.

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

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

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.

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.

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.