Emissaries from dozens of alien worlds gather at Babylon 5 to try to establish peace in the series's feature-length pilot, "The Gathering" (1993); the prequel "In the Beginning" (1998) chronicles the final days of the Earth-Minbari War; the crew discovers an ancient spatial gateway in "Thirdspace" (1998); an alien relic may hold the secret of immortality in "River of Souls" (1998); and finally, Sheridan's dreams could be the only thing able to prevent Earth's complete annihilation in "A Call to Arms" (1999). Bruce Boxleitner, Jerry Doyle, Mira Furlan, Claudia Christian, Richard Biggs, Tracy Scoggins star. 7 3/4 hrs. on five discs. Standard/Widescreen (Enhanced); Soundtrack: English Dolby Digital 5.1; Subtitles: English, French, Spanish; audio commentary; featurettes.