TMDb/Young Sherlock TV Witness the birth of a legend. Young Sherlock, starring Hero Fiennes Tiffin, solves his first murder at Oxford in this hit Prime Video series from Guy Ritchie. March 12, 2026 AceShowbiz - Young Sherlock premiered on Prime Video on March 4, 2026, quickly climbing to the top of streaming charts, signaling a fresh take on the classic detective's story. This new series, inspired by Andrew Lane's young adult thriller novels, follows a youthful Sherlock Holmes as he embarks on his first murder investigation while studying at Oxford University.