根据Paul Cleave的小说《清掃魔》（The Cleaner）改编。
1942年8月。斯大林格勒的进攻战火纷飞。轰炸愈演愈烈。所有交通枢纽和走廊都遭到袭击。紧张局势不断加剧。匪帮活动日益活跃，德国破坏分子也开始行动。斯维特兰娜·埃拉金娜和叶戈尔·希洛夫被派去协助军事检察官办公室。但抵达城市后，一群检察官调查员就在他们眼前被炸死。现在，埃拉金娜和希洛夫不仅要识别出一群总是领先一步的破坏分子，还要侦破一系列不同的犯罪案件。埃拉金娜本人也将被怀疑。毕竟，主要敌人就藏在他自己人中间。
战火即将点燃，反抗即将崛起。他为生民立命，踏上反抗军英雄的道路而这一次，他的抉择将改变全银河系的命运。
In 2262, Earthforce Captain Elizabeth Lochley is appointed to command Babylon 5. The station grows in its role as a sanctuary for rogue telepaths running from the Psi Corps, resulting in conflict. G'Kar, former Narn ambassador to Babylon 5, becomes unwillingly a spiritual icon after a book is published that he wrote while incarcerated during the Narn-Centauri War. The Drakh, former allies of the Shadows who remained in the galaxy, take control of Regent Virini on Centauri Prime through a parasitic creature called a Keeper, then incite a war between the Centauri and the Interstellar Alliance, in order to isolate the Centauri from the Alliance and gain a malleable homeworld for themselves. Centauri Prime is devastated by Narn and Drazi warships and Londo Mollari becomes emperor, accepting a Drakh Keeper under threat of the complete nuclear destruction of the planet. (Portions of the end of his reign are seen in various prescient visions throughout the series; they show Mollari and former nemesis (and later friend) G'Kar sixteen years in the future dying at each other's throats, seemingly out of their grudge. It is gradually revealed that there was a much more friendly subtext, with Mollari having become a slave to the drakh rule and being tired of life; his Drakh Keeper awakens and strangles G'Kar in return. Vir Cotto, Mollari's loyal and more moral aide, succeeds him as emperor, free of Drakh influence. Sheridan and Delenn marry and move to Minbar, along with the headquarters of the Interstellar Alliance. G'Kar leaves Babylon 5 to escape his unwanted fame and explore the rim. Garibaldi also marries and settles down on Mars. Most of the other main characters leave B5. Nineteen years later on the verge of death, Sheridan takes a final trip to the obsolete Babylon 5 station before its decommissioning. Sheridan apparently dies but is claimed by the First Ones, who invite him to join them on a journey beyond the rim of the galaxy. Babylon 5 station is destroyed in a demolition shortly after Sheridan's departure, its existence no longer necessary as the Alliance has taken over its diplomatic purposes. This final episode features a cameo by Straczynski as the technician who switches off the lights before Babylon 5 is demolished.
