The Hound of the Baskervilles (1) Sherlock Holmes : Season 2 Episode 4

Holmes is asked to solve the mystery of the death of Sir Baskerville and protect the heir to his estate Sir Henry Baskerville. Staying in London and sending Watson to protect Sir Henry, Holmes' trust sidekick ends up on the moors of Dartmoor, where the legendary Hound of The Baskervilles is said to roam...