Overview
- Prime Video releases all eight episodes globally on March 4, 2026.
- Hero Fiennes Tiffin leads as a rebellious teenage Sherlock in the 1870s with the story extending beyond England.
- The first case brings Holmes into contact with James Moriarty and a murder that grows into a globe-spanning conspiracy.
- The cast includes Dónal Finn as Moriarty alongside Zine Tseng, Joseph Fiennes, Natascha McElhone, Max Irons and Colin Firth.
- The series arrives as Ritchie’s return to the Holmes universe in a streaming format while a long-planned third Downey/Law film remains in limbo.