Sherlock Season 4: 20 Easter Eggs & References In ‘The Final Problem’
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Sherlock's season four finale went all out to blow the socks off its audience, as it delivered an action-packed 90 minute climax that threatened the lives of just about all of our favourite characters at one point or another. It is an episode that has proved controversial with fans, even though pretty much all are praying it won't turn out to be the final ever episode of the show, as showrunners Steven Moffat and Mark Gatiss have threatened.
