Watch Sherlock Season 4 Online
Watch Sherlock Season 4 full episodes online, free and paid options via our partners and affiliates.
![Long Buried Secrets - Sherlock](https://tv-fanatic-res.cloudinary.com/iu/s--uK1gzbwr--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1484346457/long-buried-secrets-sherlock.jpg)
Watch Sherlock Season 4 Episode 3
"The Final Problem"
Original Air Date:
On Sherlock Season 4 Episode 3, long buried secrets finally catch up with the Holmes family, giving them their greatest challenge on the season finale.
![Toby Jones is Introduced - Sherlock](https://tv-fanatic-res.cloudinary.com/iu/s--6jStIOIn--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1483912222/toby-jones-is-introduced-sherlock.jpg)
Watch Sherlock Season 4 Episode 2
"The Lying Detective"
Original Air Date:
On Sherlock Season 4 Episode 2, Sherlock tries to catch a serial killer hiding in plain sight, while John Watson tries to deal with the death of his wife.
![Not Thatchers - Sherlock](https://tv-fanatic-res.cloudinary.com/iu/s--cGq5il26--/t_small_l/cs_srgb,d_tv-fanatic-placeholder-square.png,f_auto,fl_strip_profile.lossy,q_auto:420/v1483303288/not-thatchers-sherlock.jpg)
Watch Sherlock Season 4 Episode 1
"The Six Thatchers"
Original Air Date:
On Sherlock Season 4 Episode 1, Sherlock continues solving cases, waiting for Moriarty's posthumous move. However, a trivial detail in a baffling case catches Sherlock's interest.