Adapted from Charles O'Neal's 1949 book, this follows the lighthearted adventures of a late 19th Century young man named Jamie McGrew, the three wishes granted to him in a dream by a fairy queen, and the unusual way they come true. His first is for travel (he goes from Ireland to a life of horse trading in Georgia); his second, to marry the girl of his dreams; the third, a son with the gift of poetry and the ability to speak in the ancient Gaelic tongue.

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.