Guy Ritchie brings his signature flair to the world of Sherlock Holmes once again, this time in a fresh television format. The new series ‘Young Sherlock’ explores the early days of the legendary detective, long before he earned his reputation as the master sleuth. Premiering on March 4, 2026, on Prime Video, the show has already generated buzz by launching with a flawless 100 percent critic score on Rotten Tomatoes. This impressive start comes from a handful of early reviews, around eight at the time of reporting, which could shift as more critics weigh in after the full release.

The story centers on a 19-year-old Sherlock Holmes, portrayed by Hero Fiennes Tiffin, during his time at Oxford University. He crosses paths with a young James Moriarty, played by Dónal Finn, and the two form an unlikely friendship that faces serious challenges. When Sherlock finds himself framed for murder, he dives into a sprawling global conspiracy that tests his intellect and resolve. Drawing inspiration from Andrew Lane’s ‘Young Sherlock Holmes’ book series, which builds on Sir Arthur Conan Doyle’s classic tales, the show delivers high-stakes action and mature themes rather than lighthearted youthful adventures.

Guy Ritchie’s ‘YOUNG SHERLOCK’ debuts at 100% on Rotten Tomatoes.

The series premieres March 4 on Prime Video. pic.twitter.com/g7zfOXKLvF
— Film Updates (@FilmUpdates) March 3, 2026

Critics have responded enthusiastically to the reinvention. One reviewer highlighted the strong chemistry between the leads, describing their dynamic as a genuine treat to watch. The series earns praise for avoiding unnecessary prequel melodrama and instead focusing on intense mysteries where the stakes feel genuinely high. Another critic called it an incredibly clever and imaginative take that honors the source material while boldly charting new territory for the characters. Even when noting minor flaws in execution, opinions lean positive, emphasizing the entertainment value and top-notch action sequences that keep viewers engaged.

The cast adds considerable depth to the production. Joseph Fiennes appears as Sherlock’s father, Silas Holmes, while Natascha McElhone plays his mother, Cordelia. Max Irons takes on the role of Mycroft Holmes, and Colin Firth brings presence as Sir Bucephalus Hodge. Additional stars include Zine Tseng as Princess Gulun Shou’an, rounding out a talented ensemble that supports the globe-trotting plot. Guy Ritchie serves as an executive producer and director, infusing the project with his energetic style seen in previous Sherlock adaptations.

This early acclaim positions ‘Young Sherlock’ favorably against other Holmes-inspired works, including some of Ritchie’s own films starring Robert Downey Jr. The series stands out for its fresh approach to the origin story, blending friendship, betrayal, and deduction in a way that feels both respectful and innovative. With all eight episodes dropping at once, it promises a binge-worthy experience full of twists and clever reveals.

What do you think of this new take on Sherlock Holmes’ youth, share your thoughts in the comments.