The fourth series begins with the nation’s favourite detective, the mercurial Sherlock Holmes, back once more on British soil, as Doctor Watson and his wife, Mary, prepare for their biggest ever challenge - becoming parents for the first time.

@AmazonVideoUK The boys are back. #RipperStreet #Season4 5:03 PM - 13 May 2015

Sherlock Holmes and Dr. Watson find themselves in 1890s London in this holiday special.

Sherlock is back, but will things ever be the same again?

《开膛街》第二季讲述了开膛手杰克之后，白教堂警官们如何在白教堂维护社会安定，缉拿穷凶极恶的凶手。伦敦的这个区，因为开膛手而永远改变了，每次发生犯罪，人们就会想到是开膛手回来了。如何才能让民众感到安全。被谑称为“来自地狱的警官”们，要绞尽脑汁了。

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......

special episode of Doctor Who

A Royal scandal, a dazzling game of cat and mouse. The seductive Irene Adler is cold, calculating, brilliant. Has Sherlock finally met his match?

When a chance encounter brings soldier John Watson into Sherlock's life, it's apparent the two men couldn't be more different, but Sherlock's intellect coupled with John's pragmatism soon forges an unbreakable alliance as they investigate a series of baffling cases together.