Sheridan encounters a Shadow vessel. Londo tries to end his alliance with the Shadows.
Sheridan discovers the amazing truth about his wife's death--and Kosh reveals an ancient secret that threatens the universe.
Londo's political status changes. The history and motives of the Shadows are revealed.
Sheridan seeks Kosh's assistance in an effort to recruit more worlds into the alliance; Londo prepares for the arrival of his lady; Franklin's addiction escalates.
Refugees from worlds destroyed by the Vorlons descend on Babylon 5. The Vorlons--and Kosh--are on the attack. Londo's plans to unseat the Centauri emperor become risky. Sheridan has a surprise for Delenn.
