The Return of Sherlock Holmes - Sherlock Holmes - 12. The Bruce Partington Plans (Jeremy Brett)

Storyline:
Sherlock's brother Mycroft enlists his younger sibling to locate missing patent plans that pertain to a strategically critical state-of-the-art submarine.

Director: John Gorrie
Writers: Arthur Conan Doyle, John Hawkesworth
Stars: Jeremy Brett, Edward Hardwicke, Charles Gray
Genres: Crime, Drama, Mystery
Release date: April 27, 1988 (United Kingdom)
Country of origin: United Kingdom
Language: English
Filming locations: Little Crosby, Crosby, Liverpool, Merseyside, England, UK
Production company: Granada Television