‘Sherlock’ Series 3: ‘His Last Vow’ synopsis revealed

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The official synopsis for the final episode of Sherlock‘s third series has been released by the BBC.

Written by Steven Moffat, ‘His Last Vow’ will air on Sunday 12 January on BBC One.

The official synopsis reads: “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?”

> Find out all the details on Series 3 so far in our summary.

Are you looking forward to ‘His Last Vow’? Let us know below…

> Order Series 3 on DVD on Amazon.

> Buy the Series 1-2 boxset on Amazon.

Watch the Series 3 teaser trailer…