Jones will star in the second episode, directed by Nick Hurran.
The first of the three feature-length episodes will be directed by Rachel Talalay.
The verdict on the New Year special.
Latest trailer for the special.
Story details for the New Year’s Day special.
UPDATED: Sherlock and Watson are back on BBC1 New Year’s Day.
Updated with full trailer.
Video preview for the upcoming special.
Latest image for the special.
Steven Moffat confirms “The special is its own thing”.