佳期如梦

　　In 2261, the Vorlons join the Shadow War, but their tactics become a concern for the alliance when the Vorlons begin destroying entire planets which they deem to have been "influenced" by the Shadows. Disturbed by this turn of events, Babylon 5 recruits several other powerful and ancient races (the First Ones) to their cause, against both the Shadows and the Vorlons. Captain John Sheridan returns to the station after escaping from Z'ha'dum, but at a price: barring illness or injury, he has only 20 years left to live. He is accompanied by a mysterious alien named Lorien who claims to be the oldest sentient being in the galaxy.
　　Hours before Sheridan's return, Garibaldi is rescued and returned to the station, in rather dubious circumstances. He is markedly more paranoid and suspicious of other alien races and of Sheridan than he was before.
　　Centauri Emperor Cartagia forges a relationship with the Shadows. Londo Mollari engineers the assassination of Cartagia and repudiates his agreement with the Shadows. Londo kills Mr. Morden and destroys the Shadow vessels based on the Centauri homeworld, in an attempt to save his planet from destruction by the Vorlons. Aided by the other ancient races, and several younger ones, Sheridan lures both the Vorlons and the Shadows into an immense battle, during which the Vorlons and Shadows reveal that they have been left as guardians of the younger races, but due to philosophical differences, ended up using them as pawns in their endless wars throughout the ages. The younger races reject their continued interference, and the Vorlons and Shadows, along with the remaining First Ones, agree to depart the galaxy forever.
　　After the Shadows are defeated Garibaldi leaves his post as security chief and works on his own as a "provider of information". He begins working for one William Edgars, a Mars Tycoon, who is married to Garibaldi's former love. While he works ever closer with Edgars, he becomes increasingly aggressive towards Sheridan and eventually leaves Babylon 5.
　　Minbar is gripped by a brief civil war between the Warrior and Religious castes. Delenn secretly meets with Neroon of the Warrior caste and convinces him that neither side can be allowed to win. She tells him that she will undergo a ritual wherein she will be willing to sacrifice herself, but will stop the ritual before she actually dies. When Neroon sees that she actually intends to go through the entire ritual, he rescues her and sacrifices himself instead, declaring that, although he was born Warrior, in his heart he is Religious.
　　As part of the ongoing conflict between Earth and Babylon 5, Garibaldi eventually betrays Sheridan and arranges his capture in order to gain Edgars' trust and learn his plans. Garibaldi later learns that Edgars created a virus that is dangerous to only telepaths. It is then revealed, that Garibaldi was actually abducted by the Psi-Corps at the end of Season 3 and re-programmed by Bester to provide information to him at the right time. Bester releases Garibaldi of his programming, and allows him to remember everything he has done since being kidnapped. Edgars is killed and his wife disappears, but is reunited with Garibaldi after the end of the war. Garibaldi helps free Sheridan and return him to the campaign to free Earth. An alliance led by Babylon 5 frees Earth from totalitarian rule by President Clark in a short but bloody war. This culminates in Clark's suicide and the restoration of democratic government. Mars is granted full independence, and Sheridan agrees to resign his commission. The League of Non-Aligned Worlds is dissolved and reformed into the Interstellar Alliance, with Sheridan elected as its first President and continuing his command of the Rangers, who are to act as a galactic equivalent of United Nations peacekeepers.
　　In the season finale, the events of 100, 500, 1000, and one million years into the future are shown, depicting Babylon 5's lasting influence throughout history. Amongst the events shown are the political aftermath of the 2261 civil war, a subsequent nuclear war on Earth involving a new totalitarian government in the year AD 2762, the resulting fall of Earth into a pre-industrial society, the loss and restoration of humanity's knowledge of space travel, and the final evolution of mankind into energy beings similar to the Vorlons, after which Earth's sun goes nova.

　　第23季的故事是从右京接受上级的指令着手编撰《警视厅150年史》开始的。
　　明治7年，警视厅由原萨摩藩士·川路利良创立。他与内务卿·大久保利通一起创建了警察机构，就任第一代大警视（现在的警视总监）。但是，后来大久保遭遇了暗杀的悲剧——。像那样的警察黎明期发生的事件一样，发生了大人物政治家被杀的事件！阻挡在开始调查的特命系面前的，是在现代日本扩大的“贫富差距”的现实，以及在政界蔓延的权力者们的野心和阴谋——！？
　　150年前和现在——随着社会的变化，“正义”是否也发生了变化……！？

　　关于开膛手杰克的故事在世界上广为流传，直到120多年后的今天，这位恶名昭彰的连环杀人犯依旧有着令人闻风丧胆的影响力，但谁都不知道真相。但这股暗黑和悬疑之风却让它多次被人挖掘和重演。
　　1888年，位于伦敦东区的白教堂一带发生连续杀害至少多名妓女的凶杀案，让维多利亚时期的伦敦陷入恐惧的疑云之中。凶手代号——开膛手杰克，犯案期间多次写信至警察局挑衅，却始终未落入法网。其大胆的犯案手法，又经媒体一再渲染而引起英国社会的恐慌。伦敦警局的H分部到任务，负责平息开膛手杰克犯案后的恐慌气氛，并且要将这个难以捉摸的罪魁祸首缉拿归案。负责这起案件的侦探埃蒙德·里德（马修·麦克费登 Matthew Macfadyen 饰）和班纳特·德雷克（杰罗姆·弗林 Jerome Flynn 饰）将并肩作战，寻找出开膛手杰克......

　　安琪（杨幂 饰）和安娜（郭珍霓 饰）本是情同手足的姐妹，却因为爱上了同一个男人刘辰熙（冯绍峰 饰）而反目成仇，从此分道扬镳。安娜考上了大学前往上海深造，而落榜的安琪则幸运的遇见了名为赵天佑（张伦硕 饰）的服装设计师，就此开启了她的圆梦之旅。
　　一晃眼三年过去，安娜妒忌安琪的幸运和努力，不惜使用一切手段排挤安琪，最终使其沦为清洁工，然而，尽管遭到了妹妹的苛待，但安琪对安娜却没有一丝憎恨，在安琪的心里，安娜永远是自己天真可爱的妹妹。落魄的安琪再度遇见了赵英佑，在后者的帮助下，安琪成为了能够和安娜抗衡的设计师，姐妹两人将T台视为战场，开始了一场激烈的角逐。

　　周劍虹（梁朝偉）因母親當年的一段三角戀愛，竟令他出世後不知生父是誰。母親生他時難產而死，他就由兩個父親周榮及鄒有共同撫養。劍虹大學畢業後，先結識女督察謝碧華（翁美玲）及女律師林少文（陳敏兒），兩人均在他心中留下印象。
　　劍虹在一珠寶公司覓得理想工作後，便努力爭取表現。在一次洽談生意中發現上司及一些同事瞞著公司，從中漁利，遂向董事長楊兆安投訴，因而甚受賞識。
　　兆安外孫江天偉（呂良偉）經劍虹介紹而認識少文，遂展開追求；與此同時，少文知悉劍虹只視自己為知己，故接受了天偉的愛意。但劍虹、碧華、天偉及少文間感情發展，忽離又合，始終糾纏不清。
　　此外，兆安無意中查悉周榮竟是他前妻所生的兒子，劍虹便是其孫，大感興奮，決栽培劍虹，讓他日後接管珠寶公司。此事給其子楊志堅知悉，大為憤怒，決要清除異己，實行他的奪權大計…