TMDb/Young Sherlock TV Discover Sherlock's origin in Young Sherlock. A 100% Rotten Tomatoes-rated series about a murder at Oxford that forges a legendary detective. April 22, 2026 AceShowbiz - Young Sherlock offers a fresh take on the legendary detective's early years, focusing on a 19-year-old Sherlock Holmes portrayed by Hero Fiennes Tiffin. The Amazon Prime Video series follows Sherlock as he navigates a dangerous murder case at Oxford University that threatens his freedom and reshapes his future.