Sherlock | S3E2:The Sign of Three
Based on The Sign of Four by Sir Arthur Conan Doyle
Sherlock faces his biggest challenge of all - delivering a best man's speech on John's wedding day.
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Sherlock | S4E3: The Final Problem
Someone has been playing a very long game indeed and, alone and defenceless, Sherlock and Dr Watson face their greatest ever challenge.
Sherlock | S4E2: The Lying Detective
Sherlock faces perhaps the most chilling enemy of his long career: the powerful and seemingly unassailable Culverton Smith - a man with a very dark secret indeed.