Young Sherlock, an origin series for the iconic detective, is set to debut on March 4, 2026, exclusively on Prime Video. All eight episodes will be available simultaneously for subscribers, diverging from the traditional weekly release format. The show marks a return for director Guy Ritchie to the Sherlock Holmes narrative, having previously helmed two feature films based on Sir Arthur Conan Doyle's work.
This new adaptation introduces viewers to a 19-year-old Sherlock Holmes, portrayed by Hero Fiennes Tiffin, who struggles with his identity as he navigates life as an amateur investigator. Set in 1871, the storyline begins with Sherlock's arrest and subsequent job offer at Oxford University from his brother, Mycroft Holmes, played by Max Irons. Accused of stealing sacred scrolls, Sherlock finds himself entwined in a larger conspiracy that propels him into a murder investigation.
Alongside Tiffin and Irons, the cast features Colin Firth as Sir Bucephalus Hodge, Dónal Finn as James Moriarty, and additional characters such as Zine Tseng and Joseph Fiennes. This series promises to reveal the formative experiences that define Sherlock Holmes and his relationships, including a unique twist on Moriarty's character.