On a Babylon 5 bustling with farewells, the promise of peace is shadowed by newfound dangers. President Sheridan and Delenn make their final preparations to leave the station that changed the galaxy, but their allies face crises of their own. Unwilling to be revered as a living deity on Narn, G'Kar plans a solitary journey to the galactic rim, a decision that spurs a devout and unstable follower to take drastic action to keep his "god" within reach. Meanwhile, as Garibaldi and Lise Hamner prepare for a new life together, the former security chief uncovers a lethal assassination plot that puts the woman he loves directly in the crosshairs. With everything in motion, the crew discovers that leaving their past behind is the most treacherous mission of all.

Garibaldi is confronted with his problems and a lack of options. G' Karis frustrated with is new status as a deified saint. Lyta finally reveals her power.

Sheridan and Delenn are greeted with a pleasant surprise.

The tragedy of the Centauri reaches its breaking point as a relentless bombardment brings the planet to its knees. With Delenn and Lennier lost in hyperspace, Londo Mollari strikes a brutal pact with the Drakh to prevent the extinction of his race. In a heartbreaking turn of fate, Londo accepts the mantle of Emperor, turning his life into a living prison to save what remains of his home.