The iconic sleuth has returned to the screen in a brand-new form with the global premiere of Young Sherlock on Amazon Prime Video. Released on March 4, 2026, the eight-episode series marks a departure from traditional adaptations by focusing on the formative, unpolished years of a 19-year-old Sherlock Holmes. Directed and executive produced by Guy Ritchie, the show blends high-octane action with a period mystery set in the 1870s, exploring the origins of the world’s most famous detective before he became the "consulting detective" of Baker Street. 'Young Sherlock' Review: Hero Fiennes Tiffin Leads Guy Ritchie’s Action-Packed Origin Story on Prime Video, Critics Praise Moriarty but Question the Series’ Length.

‘Young Sherlock’ Cast

The series features a mix of established Hollywood talent and emerging stars. Hero Fiennes Tiffin takes on the titular role of Sherlock Holmes, portraying him as an impulsive and sometimes naive young man. He is joined by Dónal Finn, who plays a charismatic and mysterious young James Moriarty.

The supporting cast includes several high-profile names like Colin Firth as Sir Bucephalus Hodge, a prominent figure at Oxford University, Joseph Fiennes and Natascha McElhone as Sherlock’s parents, Silas and Cordelia Holmes, Max Irons as Mycroft Holmes, Sherlock’s more calculated and disciplined older brother and Zine Tseng as Princess Gulun Shou’an, a skilled and enigmatic ally the duo meets at Oxford.

‘Young Sherlock’ Plot

Inspired by the novels by Andrew Lane, the series begins with Sherlock Holmes working as a porter at Oxford University, a position arranged by his brother Mycroft to keep him out of trouble. However, Sherlock quickly becomes the primary suspect in a murder case involving university faculty.

Watch the Trailer of ‘Young Sherlock’:

To clear his name, Sherlock forms an unlikely and experimental alliance with James Moriarty. The narrative follows the pair as they uncover a globe-trotting conspiracy that takes them from the streets of London to international locales like Paris and Constantinople. Along the way, the show depicts the "origin" of Sherlock’s famous skills, including his early forays into martial arts, violin playing, and his first tentative steps into the "mind palace" technique.

‘Young Sherlock’ Episodes

The first season consists of eight episodes, all released simultaneously for binge-watching. Each chapter tracks Sherlock’s evolution from a disgraced student to a budding investigator.

The episode titles are as follows:

The Case of the Missing Scrolls

The Case of the Burnt Photograph

The Case of the Unarmed Men

The Case of the Missing Button

The Case of Young Sherlock Holmes

The Case of the Killing Jar

The Case of the Two Corners

The Case of Beatrice Holmes

‘Young Sherlock’ Review

Since its release, Young Sherlock has garnered "generally favourable" reviews, currently holding an 82% approval rating on Rotten Tomatoes. Critics have praised the "electric chemistry" between Fiennes Tiffin and Finn, noting that the decision to make Holmes and Moriarty friends creates a compelling tension for fans who know their future rivalry.

While some reviewers have criticised the "frenetic" pacing and the heavy use of Guy Ritchie’s signature slow-motion action, others have lauded the show’s "steampunk-adjacent" aesthetic and its accessibility for a younger audience. The series has been described as more of a "Team Sherlock" adventure than a solitary character study, with the ensemble cast frequently sharing the spotlight.

Who is Hero Fiennes Tiffin?

The actor leading the series, Hero Fiennes Tiffin, is a 28-year-old English actor and producer who first gained international attention for his role as the young Tom Riddle in Harry Potter and the Half-Blood Prince. He later became a household name among young adult audiences as the lead in the After film franchise. ‘Harry Potter’ Star Emma Watson Dating Wealthy Mexican Businessman Heir Gonzalo Hevia Bailleres? Airport Kiss Sparks Rumours.

Hero Fiennes Tiffin’s Instagram Post

 

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Fiennes Tiffin comes from a distinguished cinematic family; he is the son of director Martha Fiennes and cinematographer George Tiffin, and the nephew of acclaimed actors Ralph Fiennes and Joseph Fiennes (who plays his on-screen father in this series). Beyond Young Sherlock, his recent credits include the historical drama The Woman King and the action-thriller The Ministry of Ungentlemanly Warfare.

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(The above story first appeared on LatestLY on Mar 06, 2026 04:55 PM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).