Young Sherlock Ending Explained: Who is the Murderer After the Professors? Does Sherlock Get to the Bottom of His Family’s Misfortunes?

Young Sherlock Ending Explained: When a disgraced Sherlock Holmes finds himself entangled in a dangerous game of murder and conspiracy, he takes matters into his own hands to solve the case or risk losing everything in the process.

  • Young Sherlock Prime Video Cast

    ​​​​​​​Hero Fiennes Tiffin, Dónal Finn, Zine Tseng, Joseph Fiennes, Natascha McElhone, Max Irons, Colin Firth

  • Young Sherlock Series Director

    Guy Ritchie

  • Young Sherlock 2026 Creator

    Matthew Parkhill

The series has 8 episodes, each with a runtime of around 50 minutes and is inspired by Young Sherlock Holmes by Andrew Lane and Sherlock Holmes by Arthur Conan Doyle.

Young Sherlock Ending Explained: Hero Fiennes Tiffin, Colin Firth, Max Irons
Young Sherlock Ending Explained: Hero Fiennes Tiffin, Colin Firth, Max Irons

Young Sherlock Ending Explained

In this spirited detective series, a young Sherlock Holmes finds himself in a sticky situation in 1871 when, after being freed from jail by Microft, he gets a job as a porter at Oxford. There, he becomes friends with James Moriarty, a student, and soon gets pulled into another unfortunate incident when he becomes the prime suspect of a professor’s murder. Confused but determined to get to the bottom of the mystery, Sherlock runs from the police and, together with James, tries to understand why several professors working under Sir Bucephalus Hodge are turning up dead.

Who was the murderer? What were their motives?

Young Sherlock Ending Explained: Dónal Finn, Natascha McElhone, Hero Fiennes Tiffin
Young Sherlock Ending Explained: Dónal Finn, Natascha McElhone, Hero Fiennes Tiffin

Running from being a prime suspect in the serial killings, Sherlock is finally able to put two and two together and determine that the killer is actually Princess Gulun Shou’an’s imposter, Xiao Wei, who has come to Oxford to get revenge against the professors for the murder of her village, including her parents.

Sir Bucephalus Hodge and the professors, including Kishmore Malik, had found a compound beneath her village and used it to create a nerve agent that silently kills people, without leaving any trace. Overcome with the need for revenge, Xiao Wei took on Shou’an’s identity to secretly get into Oxford without anyone noticing and get revenge. However, Sherlock and James are able to see through her plans.

Who was the mastermind?

Soon after realising who the murderer is, Sherlock realises that there is someone else who is behind all of this chaos around them, working silently above Hodge to move all the pieces. In the end, he learns that it’s none other than his father, Silas, who has been pulling the strings. After having bought out Mallick, he tried to use the weapon to sell to the highest bidder and make money, but his plan was thwarted by Sherlock.

Young Sherlock Ending Explained: Hero Fiennes Tiffin, Dónal Finn
Young Sherlock Ending Explained: Hero Fiennes Tiffin, Dónal Finn

What happened to Beatrice?

Throughout the series, one of the biggest mysteries was Beatrice’s death, something that left Sherlock’s family destroyed. However, James, by putting two and two together, realises that Beatrice might not be dead and that Silas has been lying to his entire family. Although Sherlock doesn’t want to believe it at first, he soon has to see the truth.

The truth is that Silas, after going bankrupt, decided to take over Cordelia’s estate to fund his experiments and thus had Beatrice kidnapped. He then made this fantastical plan of staging her death and deeming Cordelia unfit, and sent her to an asylum. As a result, he automatically got control of her riches, without anyone noticing.

Young Sherlock Ending Explained: Max Irons, Natascha McElhone
Young Sherlock Ending Explained: Max Irons, Natascha McElhone

Beatrice, meanwhile, was sent to live with other people. She eventually does find Silas and starts to work with him as well, fully brainwashed with the notion that it was Cordelia’s fault that she had to be sent away.

Is Sherlock able to get to the bottom of the mystery and reunite his family?

Sherlock gets his family together, if only to make Beatrice see how manipulative and destructive their father is. However, years of brainwashing don’t just go away easily and thus, she refuses to believe them at first. Thankfully, it’s Cordelia’s love for her daughter that eventually takes the blindfold off her eyes, and she goes against her father. Of course, overhearing Silas make the same proposal to Sherlock that he had once made to her didn’t help either.

What happens to Silas Holmes?

Young Sherlock Ending Explained: Joseph Fiennes
Young Sherlock Ending Explained: Joseph Fiennes

In the end, hunted by both Xiao and Bea, Silas is almost murdered. However, he uses Sherlock as a shield to fall off a cliff, although his fate is never properly brought forth. Plus, his huge operation of the nerve agent is also blasted to oblivion. The only proof that remains is Mallik’s calculations of how to make the ingredient in James’s care, but his true intentions, too, remain muddy.

What are your thoughts on Young Sherlock? Let us know in the comments below!

Also Read: Young Sherlock Review: Holmes Returns as a Young, Reckless Teen to Solve Another Murder!

Archi Sengupta
Archi Sengupta
Archi Sengupta, a writer for over seven years, is an Engineering graduate with a Master’s degree in Mass Communication. She enjoys watching horror movies and TV shows, Korean content, and anything that thrills and excites her.

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