The Adventure of the Second Stain

A matter of national and international consequence brings Sherlock Holmes out of the familiar streets of London into the world of high diplomacy.

When a top‑secret government dispatch goes missing from the home of a Cabinet Minister, with the potential to ignite a European war, Holmes must race against time to recover it and protect fragile peace. With murder, covert visits, political scandal, and his unmatched powers of deduction, Holmes unravels a thread of secrets that threatens the stability of nations.

Featuring tense interrogations, shadowy figures, and a puzzle that could have catastrophic consequences if unsolved, this episode pairs classic mystery with global stakes.