Holmes takes a vacation and visits his old friend Sir Henry Baskerville. His vacation ends when he suddenly finds himself in the middle of a double-murder mystery. Now he's got to find Professor Moriarty and the horse Silver Blaze before the great cup final horse race.

• Julius Hagen Productions
• Arthur Wontner
• Ian Fleming
• John Turnbull
• Lawrence Grossmith
• Robert Horton
• Lyn Harding
• Arthur Macrae
• Judy Gunn