Overview
- All eight episodes will release simultaneously on March 4, 2026 in more than 240 countries and territories on Prime Video.
- Hero Fiennes Tiffin leads as a 19-year-old Sherlock Holmes, with Dónal Finn as James Moriarty and supporting roles for Zine Tseng, Colin Firth, Joseph Fiennes, Natascha McElhone and Max Irons.
- Set in 1870s Oxford, the story follows a disgraced student whose first case draws him into a murder investigation that expands into a globe-spanning conspiracy.
- Guy Ritchie serves as executive producer and directs the first two episodes, with Matthew Parkhill as showrunner and Motive Pictures leading physical production.
- Promotional materials frame the series as an irreverent, action-driven reimagining inspired by Andy Lane’s Young Sherlock novels and Ritchie’s earlier Sherlock films.