1963年，霍金21岁的人生发生了一悲一喜两个重大事件。这一年他被确诊患上了肌萎缩侧索硬化症，这种病会使他的身体越来越不听使唤，只剩下心脏、肺和大脑还能运转，最后连心肺功能也会丧失，当时大夫预言他只能再活两年。这一致命的打击几乎使霍金放弃了学业，但生日舞会上一个女孩的出现神奇地改变了一切，她就是霍金的第一任妻子简。

第二季第一集承接上一季最后一集的剧情，从被炸弹和狙击枪威胁的夏洛克(本尼迪克特·康伯巴奇 Benedict Cumberbatch 饰)和华生（马丁·弗瑞曼 Martin Freeman 饰）和莫里亚蒂(安德鲁·斯科特 Andrew Scott 饰)第一次正式会面开始。 接着夏洛克在接受白金汉宫一份重要委托的案件中遇到了亦正亦邪的神秘女子艾琳·艾德勒(拉娜·普尔弗 Lara Pulver 饰)，一位旗鼓相当的对手，一个使他心动的女子。这一次莫里亚蒂使大众相信夏洛克所有的事迹全是虚构，使之变成一个伪英雄名誉扫地。而为了彻底打垮夏洛克迫使他跳楼，莫里亚蒂竟立刻吞枪自杀，结局到底如何，夏洛克会因此中了他的圈套吗？精彩尽在第二季。

The ship has been stuck in the doldrums for some time, but as soon as they break free into more promising water, the wind blows up suddenly, damaging the foremast and sending the ship right back into the still water. Mr Prettiman takes a hard fall and is laid up in his cabin, Miss Granham tends to him and the two announce their engagement.
A ship is sighted in the distance. As everyone prepares for the encounter with the enemy Edmund hits his head. He is badly hurt, but struggles on. The ships draw close, but instead of bringing an encounter with the enemy, it is The Alcyone, a British ship captained by Sir Henry Somerset, they announce that the war is over.
The two boats are tied together for a ball. Edmund meets Sir Henry's ward, Marion, and immediately falls in love. But his head injury takes its toll and he falls unconcious just as he was going to beg for her hand. After some days he finally recovers, but the two ships have parted and Marion is gone.
Edmund's servant Wheeler was on board the Alcyone. He had spent four days in the water after going overboard and had finally been spotted, rescued by the crew and eventually returned to the original ship. As they sail on, there is yet more damage as part of the keel falls from the ship. The passengers start to panic, convinced it will sink. Edmund finds Wheeler in his cabin with a gun, after his last scrape with death he is terrified of drowning, and he shoots himself.
一个有点可笑的年轻人在探索世界的同时自己也得到了成长。

本季延续《神探夏洛克第二季》的剧情，在莱辛巴赫坠楼案两年后，华生（马丁·弗瑞曼饰）努力让生活重新步上正轨，集美丽与智慧于一身的玛丽·摩斯坦（阿曼达·艾宾顿饰）将与华生一同步入和谐浪漫的人生新阶段。然而此刻，夏洛克（本尼迪克特·康伯巴奇饰）却上演复活戏码，虽然这是华生祈祷已久的愿望，但当愿望实现时，他还是无法坦然面对一切。这一次，夏洛克和华生需要解决伦敦街道下神秘的阴谋、婚礼上突如而来的意外，及面对恶名昭彰且阴险的勒索之王——查尔斯·奥古斯都·马格努森（即原著米尔沃顿，拉斯·米科尔森饰）。夏洛克回来了，但一切还和以前一样吗 ？

根据莎拉·沃特斯同名小说《Tipping the Velvet》改编而成。
一支轻轻奉上的滴露玫瑰，让18岁的小镇姑娘南（Rachael Stirling饰）万劫不复，一生的命运就此改变……
南在观看杂戏团表演时，遇见了反串男生演出的女角凯蒂（Keeley Hawes饰），南被后者灿烂夺目的形象和演出深深感染，幸运的她在引荐下和凯蒂结识，满心喜悦地成为偶像的小跟班。
凯蒂要去更大的舞台伦敦出人头地，南自然是义无反顾地跟随，她的表演才华意外地被挖掘出，初出茅庐的她俩一起搭档表演，火速成为舞台上一对最瞩目的角儿。此时，两人的关系也已升级为恋人，凯蒂的终生承诺让南深信不疑。
可是变得最快的总是人心，凯蒂竟然背叛了南，要嫁为人妇，无法接受打击的南逃离了这一切，开始将自己放纵在这座黑暗的城市里。