: The original series finale, "Sleeping in Light," was filmed as the last episode of Season 4. When the show was unexpectedly renewed for Season 5 by TNT, this finale was moved to the end of the next year, and a new Season 4 finale, " The Deconstruction of Falling Stars ," was quickly produced.
: With the cosmic threat gone, Sheridan turns his attention to President Morgan Clark's totalitarian regime. This campaign culminates in the Battle for Earth, where Clark commits suicide as Sheridan's forces breach the planet's defences. Babylon 5 - Season 4
The fourth season of Babylon 5 , titled is widely considered the show's narrative climax. Spanning the year 2261, it resolves the two massive conflicts that had been building since the series began: the war with the Shadows and the liberation of Earth. Narrative Highlights : The original series finale, "Sleeping in Light,"
: Season 4 ends with the departure of Susan Ivanova (Claudia Christian) and the death of Marcus Cole , who sacrifices his life to save hers using an alien healing device. This campaign culminates in the Battle for Earth,