- Benedict Cumberbatch (Sherlock Holmes)
- Martin Freeman (John Watson)
Episode: The Sign of Three
Air Date: 2014-01-05
Runtime: 87 min
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 – and someone might not make it to the happy couple’s first dance. Sherlock must thank the bridesmaids, solve the case and stop a killer.