



This content is imported from Twitter. You may be able to find the same content in another format, or you may be able to find more information, at their web site. Back! #Sherlock pic.twitter.com/WFvpGpy3PV — Mark Gatiss (@Markgatiss) April 11, 2016

Time to get excited Sherlock fans! Filming is underway on the show's fourth series, which means the return of Benedict Cumberbatch's detective isn't too far away.

Co-showrunner Mark Gatiss shared a picture of Cumberbatch in action on Twitter last night (April 11), captioned simply with: "Back!"

The first episode will pick up exactly where New Year's Day special 'The Abominable Bride' left off, with Sherlock back on British soil to investigate the mysterious resurgence of the long-dead Moriarty (Andrew Scott).

Meanwhile, John Watson (Martin Freeman) and his wife Mary (Amanda Abbington) will prepare for their biggest ever challenge - becoming parents for the first time.

"I'm genuinely thrilled to be back filming Sherlock with all the cast and crew," said Cumberbatch, who's just wrapped shooting on Marvel's Doctor Strange.

"I can't wait for everyone to see season four. But you will have to wait... though not for long... And it will be worth it."

Meanwhile, Sherlock will get its first female director in Rachel Talalay, who previously worked with Steven Moffat on Doctor Who. She is directing the fourth season premiere.

Series four of Sherlock is expected to air in January 2017.

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