‘Young Sherlock’ trailer: Hero Fiennes Tiffin steps into actio-packed origin story

The trailer of Prime Video’s series Young Sherlock was unveiled on Thursday. The series stars Hero Fiennes Tiffin (After series) as Sherlock Holmes. Directed by Guy Ritchie, Young Sherlock is touted to be “an irreverent, action-packed mystery that charts the legendary origin story of the world’s greatest detective.”

All eight episodes of the series will premiere on March 04, 2026, exclusively on Prime Video in more than 240 countries and territories worldwide. Official synopsis of the project read, “When a charismatic, youthfully defiant Sherlock Holmes meets none other than James Moriarty, he finds himself dragged into a murder investigation that threatens his liberty.

Sherlock’s first ever case unravels a globe-trotting conspiracy, leading to an explosive showdown that alters the course of his life forever. Unfolding in a vibrant Victorian England and adventuring abroad, the series will expose the early antics of the anarchic adolescent who is yet to evolve into Baker Street’s most renowned resident.”

Previously announced cast members of Young Sherlock include Donal Finn (The Wheel of Time), Zine Tseng (3 Body Problem), Joseph Fiennes (The Handmaid’s Tale), Natascha McElhone (Halo), Max Irons (Condor) and Colin Firth (The King’s Speech). Guy Ritchie directs the first two episodes and executive produces.

ALSO READ: Sherlock Holmes’ afterlife in India: The adventure of the drowned detective

The series is created for television and executive produced by showrunner Matthew Parkhill with executive producers Dhana Rivera Gilbert, Marc Resteghini, Simon Maxwell, Ivan Atkinson, Simon Kelton, Colin Wilson, and co-executive producers Harriet Creelman and Steve Thompson. Motive Pictures led physical production for Young Sherlock.