Sheridan uses a powerful new tool against the Shadows. Franklin undertakes a strange mission.
Delenn agrees to lead the Rangers, but Marcus must protect her from a deadly threat. Garibaldi investigates a secret station level.
Londo uses G'Kar and Vir in a deadly scheme to gain power in the Centauri Royal Court. Sheridan deciphers a key Shadow strategy.
The Shadows launch a major offensive. Franklin finds a spiritual resolution. Sheridan receives a surprise visitor (Melissa Gilbert).
Londo's political status changes. The history and motives of the Shadows are revealed.
Sheridan is missing and presumed dead. The Centauris continue to ally with the Shadows.
G'Kar finds trouble while searching for Garibaldi. Sheridan hovers between life and death.
A mysterious spacecraft heads towards Babylon 5 as Ivanova and Marcus search for more First Ones to aid in the war. Babylon 5 welcomes back its missing officers. The Vorlons undertake a frightening new tactic.
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.
Sheridan schemes to lure the Shadows into open warfare with the Vorlons. Londo carries out his perilous plan to rid himself of Cartagia.
Ivanova and Lorien look for First Ones as Sheridan readies to meet the Shadows and Vorlons. Londo decisively ends the Centauris' alliance with the Shadows. The Shadows and Vorlons finally clash--with Sheridan's fleet trapped between them.
Jerry Doyle
Security Chief Michael Garibaldi
Mira Furlan
Delenn
Richard Biggs
Dr. Stephen Franklin
Billy Mumy
Lennier
Stephen Furst
Vir Cotto