The Sign of Three
Sherlock faces his biggest challenge of all – delivering a Best Man’s speech on John’s wedding day. But all isn't quite as it seems. Mortal danger stalks the reception. Benedict Cumberbatch and Martin Freeman star in the Sherlock
Previews + Extras
Preview
S3 E2 - 30s
Sherlock Season 3 Episode 2, The Sign of Three as seen on MASTERPIECE on PBS.
Similar Shows
WETA Passport
Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.