Sir Charles Baskerville dies on the moor under mysterious circumstances and rumors abound about a demonic hound. When the American heir arrives to take charge, a family friend calls in Holmes and Watson to get to the heart of the mystery.

• Granada Television
• Jeremy Brett
• Edward Hardwicke
• Raymond Adamson
• Alastair Duncan
• Ronald Pickup
• Rosemary McHale
• Kristoffer Tabori
• James Faulkner