SHERLOCK Season 4 Preview: Revealing Your Secrets

The BBC has unveiled a new preview and a synopsis for the upcoming season of SHERLOCK.

Here’s what to expect in the premiere, titled “The Six Thatchers”: “In episode one of this new series, written by Mark Gatiss, Sherlock waits to see where Moriarty will make his posthumous move. One mysterious case in particular baffles Scotland Yard – but Sherlock is more interested in a seemingly-trivial detail. Why is someone destroying images of the late Prime Minister Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work? Something with its roots deep in Mary Watson’s past…”

The new preview, meanwhile, ends on an interesting note: with a declaration of love from Sherlock Holmes himself. The clip also shows more of season 4’s new villain, played by Toby Jones.

SHERLOCK will premiere at 8:30 p.m. on January 1, 2017 on BBC (U.K.) and PBS (North America).

For all the latest TV news and reviews