Sherlock Holmes (1984)

S3E6 The Priory School

When Lord Arthur Saltire, the son of the Duke of Holdernesse, disappears from the Priory School, the Duke turns to Sherlock Holmes for assistance. As Holmes investigates, he discovers a link between the boy's abduction and a long-standing mystery involving a missing teacher. Unraveling the clues, Holmes seeks to uncover the truth behind the disappearances and bring Lord Arthur back safely.