Sherlock, Season 4

Sherlock Season 4

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Sherlock Season 4

Season 4 Episode Guide

Season 4 Episode 1 - The Six Thatchers
Sunday, January 1 at 8:00 p.m.
​Repeats Saturday, January 7 at 7:55 p.m.

In "The Six Thatchers," Sherlock waits to see where Moriarty will make his posthumous move. One mysterious case in particular baffles Scotland Yard, but Sherlock is more interested in a seemingly trivial detail. Why is someone destroying images of the late Prime Minister Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work? Something with its roots deep in Mary Watson's past…

Benedict Cumberbatch returns as Sherlock Holmes, with Martin Freeman as John Watson, Mark Gatiss as Mycroft Holmes, Rupert Graves as Inspector Lestrade, Una Stubbs as Mrs Hudson, Amanda Abbington as Mary Watson and Louise Brealey as Molly Hooper.

Season 4 Episode 2 - The Lying Detective
​Sunday, January 8 at 8:00 p.m.
Repeats Tuesday, January 10 at 2:00 a.m.
Repeats Saturday, January 14 at 7:55 p.m.

In episode two Sherlock, Season 4, 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. 

"The Lying Detective" is written by Steven Moffat. Benedict Cumberbatch returns as Sherlock Holmes, with Martin Freeman as John Watson, Mark Gatiss as Mycroft Holmes, Rupert Graves as Inspector Lestrade, Una Stubbs as Mrs Hudson, Amanda Abbington as Mary Watson, Louise Brealey as Molly Hooper and Toby Jones as Culverton Smith.

Season 4 Episode 3 - The Final Problem
​Sunday, January 15 at 6:00 p.m. (note earlier start time)
Repeats Tuesday, January 17 at 3:00 a.m.

Sherlock concludes its fourth season with "The Final Problem." 

In the final episode of this new season, long buried secrets finally catch up with the Baker Street duo. Someone has been playing a very long game indeed and Sherlock and John Watson face their greatest ever challenge. Is the game finally over?

"The Final Problem" was written by Mark Gatiss and Steven Moffat.

Watch Sherlock on Nine PBS!

Sherlock returns with three brand-new episodes that promise laughter, tears, shocks, surprises and extraordinary adventures.

Season four begins with the mercurial Sherlock Holmes (Benedict Cumberbatch), back once more on British soil as Doctor Watson (Martin Freeman) and his wife Mary (Amanda Abbington) prepare for their biggest challenge yet: becoming parents.

Learn more at PBS.org/Masterpiece.

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