京城四少1991

　　《头脑共助》是一部脑科学喜剧刑侦剧，讲述两个互相杀不死对方而焦急的男人，解决与稀有脑疾病相关的犯罪事件。拥有“非常特别的大脑”的脑神经科学家申一天与拥有“冤大头的大脑”的刑警金明世进行合作，通过充满反转且津津有趣的脑疾病事件，传达了梦幻般斗嘴的化学反应和杀气腾腾的欢笑以及让人共鸣的信息。
　　首先，郑容和将饰演医生世家里含着金汤匙出生的富三代，继承了巨额财产的母胎富豪，拥有“非常特别的大脑”的脑神经科学家申一天一角。剧中申一天是一个对法律、金钱、女人、孤独、死亡等一听就能感觉到负担感的东西毫不畏惧，每件事都按照自己的信念去行动和说话的堂堂正正的人物。相反，对于自己认为是垃圾的人，会做出毫无慈悲心的无情行为。
　　车太铉将饰演拥有致命的善良魅力的“利他主义的大脑”的所有者兼刑警金明世一角。剧中，金明世与吊儿郎当的大男子气概和粗犷语气等生计型腐败刑警的外表不同，是具有人性化、善良性格的人物。
　　郭善英饰演拥有“小心谨慎的大脑”的法律催眠调查官薛素贞一角。 剧中薛素贞比别人对压力反应更敏感，对下属下达业务指示也会心脏砰砰直跳，是小心谨慎，只要吩咐便什么都做的顺从性格的人，但是却经历了让性格发生180度变化的事件。
　　艺智苑将饰演拥有“性/yu过多的大脑”的金明世的前妻金莫兰一角。剧中金莫兰是一个一直换男人，脚踏两船、三船等无法控制性/yu的所有者。离婚后也向金明世提出各种请求，是一个厚颜无耻的女人。

　　赤座雪子（杉咲花 饰）自幼患有眼疾，虽然不至于全然看不见，但她只能够感受到微弱的光线和颜色，因此，雪子就读了盲校。对于雪子来说，生命中最重要的伙伴是手中白色的手杖，它是她的手和眼睛，可以保护她不受伤害。虽然生命中充满了诸多的不幸，但雪子是在亲人无微不至的关爱中长大的，所以个性十分乐观开朗，对未来也充满了期待。
　　一次偶然中，雪子在大街上惹到了名为黑川森生（杉野遥亮 饰）的小混混，在无意之中对他使出了“致命一鸡”，哪知道这一踢非但没有惹恼森生，反而唤醒了森生内心里别样的感情。森生深深的被这个善良而又坚强的女孩打动了，决定充当起她保护者的角色。

　　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.