WATCH VIDEO : Sherlock Season 3 Episode 3 His Last Vow
Episode Name: His Last Vow
Air date: 1/12/2014
Summary:
A case of stolen letters leads Sherlock Holmes into a long conflict with Charles Augustus Magnussen, the Napoleon of blackmail, and the one man he truly hates. But how do you tackle a foe who knows the personal weakness of every person of importance in the Western world?