The first teaser for Sherlock season four was unveiled during a 2016 San Diego Comic-Con panel.
Deadline reports that “the panel did manage to let slip what looks like a pretty big clue about the upcoming season. Asked by moderator Chris Hardwick to provide three key words about Season 4, Gatis and Moffat instead opted to provide three names: Thatcher, Smith and Sherrinford. Fans of the original Holmes novels know that Sherrinford has particularly crucial importance.”
The video embedded above offers glimpses of Benedict Cumberbatch as the titular sleuth and Martin Freeman as his loyal sidekick Dr. Watson. According to USA Today, the air date has been set for 2017. Click here to download a free digital copy of The Adventures of Sherlock Holmes by Sir Arthur Conan Doyle. (via Yahoo!)