家家有本難念的經，日常生活中每個人都有自己的難處，或許連最親密的人都難以傾訴。故事從賣場收銀員的小舉動開始，一張做了記號的一美元綠色鈔票，意外地串聯起許多人的生活。錯綜複雜的連鎖反應，「正向」的念頭能夠達成「正向」的結果嗎？

　　初夏，在土耳其北部的一个村庄里，拉蕾和她的四个姐妹走在放学回家的路上，和男孩子们天真烂漫地打闹。然而这种行为却被当成了一桩不检点的丑闻，引发可怕的后果。家庭生活变成监狱，从此告别学校，而是为结婚做准备。五个姐妹都同样向往着自由，她们找到了一种突破这囚牢的方式。

Haunted by the suspicious death of his ailing mother, a university professor coerces his enigmatic gardener to execute a cold-blooded act of vengeance.

New Year's Eve 1999. Minnie discovers a bottle of TIME TRAVELLING TEQUILA. Each shot takes her back to the start of the night, giving her a bottle's worth of shots to change the course of her millennium.

　　《欢乐合唱团》可以说是这几年来最成功，也是唯一成功的有剧本音乐喜剧，除了剧集本身很吸引人之外，连带发行的专辑和随后推出的巡回演唱会都非常成功。并且它对于青少年之于音乐的狂热也很有影响，和《美国偶像》、《美国之声》等真人秀一样，让人感受到了音乐所带来的正能量。

　　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.

　　

　　伽玛（凯文·狄龙 Kevin Dillon 饰）和文森特（艾德里安·格尼尔 Adrian Grenier 饰）是同父异母的兄弟，两人的性格截然不同，伽玛一直想要成名，并且为此费尽了心机，然而，渐渐在人生的道路上获得成功的却恰恰是淡泊名利的文森特，这让伽玛感到十分失落。　　特托（杰瑞·费拉拉 Jerry Ferrara 饰）是文森特的管家，忠恳老实的他没有别的念头，只想一门心思的过好眼前的生活。艾里克（凯文·康诺利 Kevin Connolly 饰）是文森特最好的朋友，他时常会给文森特提出些一针见血的建议。阿里（杰里米·皮文 Jeremy Piven 饰）是文森特的经纪人，他常常和艾里克就某些事情上发生分歧。然而，聪明的阿里知道，想要保住自己的职位，他必须和艾里克搞好关系。