While waiting for Moriarty to make good on his beyond-the-grave threat, Sherlock is intrigued by cases of vandalism where the criminal is breaking open busts of Margaret Thatcher. He soon discovers that the vandalism is tied to Mary's past.

Bölüm: S04E01
Bölüm Adı: The Six Thatchers
Yayınlanma Tarihi: 01.01.2017