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In this episode, written by Mark Gatiss and Steven Moffat, long-buried secrets catch up with the Baker Street duo. Someone has been playing a long game indeed and Sherlock and Watson face their greatest ever challenge. Is the game finally over?
John Watson and Sherlock Holmes have been through some rough patches before, but never one quite like this. In the wake of an episode that tests both their relationship, and their sanity, Martin Freeman joins us to look back at John and Sherlock’s unlikely friendship, and teases their uncertain future.
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