Sherlock Holmes: Season 4
Season 4 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Sherlock Holmes Season 3.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
Episode Guide
Season 4 Progress Shield
The Sign of Four
Dec 29, 1987
For years after her father's disappearance, the beautiful Miss Mary Morstan receives anonymously every year one large and valuable pearl. When, finally, an invitation arrives to me
The Devil's Foot
Apr 6, 1988
Reluctantly, after an illness, Holmes takes a holiday in Cornwall, with Watson for company. Then one day he finds himself investigating a mysterious death... after a quiet evening
Silver Blaze
Apr 13, 1988
In a remote area of Dartmoor, The Silver Blaze, England's most famous and valuable racehorse, goes missing, the dead body of the horse's trainer is found, and sheep are savaged. Th
Wisteria Lodge
Apr 20, 1988
On a visit to Wisteria Lodge, Scott Eccles gets a strange reception. A mysterious note arrives for his host, Garcia, and the next morning Garcia and his servants have vanished with
The Bruce Partington Plans
Apr 27, 1988
The body of one Cadogan West is found in an underground tunnel near Aldgate Station, with his skull smashed, and Holmes is puzzled by the interest his brother Mycroft is showing in
The Hound of the Baskervilles
Aug 31, 1988
Sir Charles Baskerville is found dead on Dartmoor, with his face contorted in terror and the footprints of a huge dog near his body. On arrival in England, Sir Charles's American h