The Psi Corps and President Clark, whose government has discovered Shadow vessels buried in Earth's solar system, begin to harness the vessels' advanced technology. The Clark administration continues to become increasingly xenophobic and totalitarian, and uses a military incident as an excuse to declare martial law. This triggers a war of independence on Mars, which had long had a strained political relationship with Earth. Babylon 5 also declares independence from Earth, along with several other outlying Earth Alliance colonies. In response, the Earth Alliance attempts to retake Babylon 5 by force, but with the aid of the Minbari, who have allied with the station against the growing Shadow threat, the attack is repelled. Becoming concerned over the Shadows' growing influence amongst his people, Centauri ambassador Londo Mollari attempts to sever ties with them. Mr. Morden, the Shadows' human representative, tricks him into restoring the partnership by engineering the murder of Mollari's mistress while putting the blame on a rival Centauri House. Open warfare breaks out between the Shadows and the alliance led by Babylon 5 and the Minbari. It is learned that genetic manipulation by the Vorlons is the source of human telepathy, as it is later discovered that Shadow ships are vulnerable to telepathic attacks. Displeased at the Vorlons' lack of direct action against the Shadows, Captain John Sheridan browbeats Vorlon ambassador Kosh Naranek into launching an attack against their mutual enemy. Kosh's deeds lead to his subsequent assassination by the Shadows. Former station commander Jeffrey Sinclair returns to Babylon 5 to enlist the aid of Captain Sheridan, Delenn, Ivanova and Marcus in stealing the Babylon 4 space station and sending it 1,000 years back in time to use it as a base of operations against the Shadows in the previous Minbari-Shadow war. Undergoing the same transformation as Delenn at the end of Season 1, Sinclair transforms into a Minbari and is subsequently revealed to be the actual Valen of Minbari legend, rather than a reincarnation. Spurred by the reappearance of his assumed-dead wife (who now works for the Shadows), Sheridan travels to Z'ha'dum, the Shadow homeworld, in an attempt by them to recruit him. However he instead destroys their largest city in a kamikaze nuclear attack, and is last seen jumping into a miles-deep pit to escape the explosion. Garibaldi, during a fight with Shadow vessels, goes missing.
在一艘有800年历史的罗慕兰飞船被发现后，伯纳姆船长和美国发现号被派去取回它。但里面的文物被盗，开始了一场史诗般的追逐。萨鲁获得终身职位。
《爸爸好奇怪》讲述了在一生只知道工作和家庭的勤恳父亲卞汉秀和支持他的妻子罗英实以及充满个性的四兄妹的家庭中，因一名青年的突然闯入，并声称自己是这个家的儿子而发生的温暖搞笑故事。
韩国男孩武赫（苏志燮 饰）一出生就被父母抛弃了，两岁时被一个澳大利亚家庭收养，因为饱受家庭暴力，他10岁时就离家出走了。街头艺人保罗收养了他，可是当保罗结识了一个浅薄的女人后，武赫再次被抛弃了。武赫一直过着流浪的生活，偷鸡摸狗什么也干过。长大后，武赫遇上了韩国女孩志英（崔茹真 饰），两人虽然深爱对方，可是志英为了钱而最终选择了离开。在志英的婚礼上，武赫为了保护她而身中两枪，其中一颗子弹永远留在了他的头部，这意味着他的生命也来日无多了。武赫返回了祖国，这时他才发现他的父母当年并非因为贫穷才抛弃他，他们一直都生活得十分富足，他弟弟也当上了明星。武赫决意向生母报复，以补偿自己一直以来受到的苦……
新的一季里，刚过完65岁生日的杰（艾德·奥尼尔 Ed O'Neill 饰）和娇妻格劳丽亚（索菲娅·维加拉 Sofía Vergara 饰）迎来了新生命的孕育。杰烦恼着孩子的性别，他的继子曼尼则暗自为自己可能受到冷落不安。克莱尔（朱丽·鲍温 Julie Bowen 饰）和丈夫菲尔（泰·布利尔 Ty Burrell 饰）依依不舍的将大女儿海莉送入了大学，眼看二女儿艾丽克斯和小儿子卢克也即将长大成人，夫妻俩开始规划数年后的二人世界生活。米切尔（杰西·泰勒·弗格森 Jesse Tyler Ferguson 饰）和同性爱人卡梅隆（艾瑞克·斯通斯崔特 Eric Stonestreet 饰）也将养女莉莉送到了幼儿园，他们买了一只猫陪伴莉莉，一直赋闲在家的卡梅隆也终于得以回到自己钟爱的工作岗位。 温馨大家庭的影像记录故事已经来到了第四季。伴随着三个家庭点滴的成长与变化，相信这部剧集还将走得更远。
