Sherlock Holmes - Season 4 - Eps 1: The Sign of Four
For years after her father's disappearance, the beautiful Miss Mary Morstan receives anonymously every year one large and valuable pearl. When, finally, an invitation arrives to meet the mysterious pearl-giver, Mary Morstan seeks Holmes's advice, and he begins to unravel some remarkable clues, including a poison dart and a man with a wooden leg. What Holmes finds is an old soldier who is determined to punish those who betrayed him and his friends by stealing their oriental treasure.
About Sherlock Holmes

Title: Sherlock Holmes
First Air Date: 1984-04-24
Last Air Date: 1994-04-11
Status: Ended
Rating: 8.093/10 (from 225 votes)
Language: EN
Seasons: 7
Total Episodes: 41
Network: ITV1
Genres: Crime, Drama, Mystery
Production Companies: Granada Television
Synopsis
Sherlock Holmes uses his abilities to take on cases by private clients and those that the Scotland Yard are unable to solve, along with his friend Dr. Watson.
Cast

Jeremy Brett
Sherlock Holmes

Edward Hardwicke
Dr. John H. Watson

Rosalie Williams
Mrs. Hudson