When Sir Charles Baskerville's body is mysteriously discovered in the Dartmouth Moors with colossal footprints leading to his corpse, it is blamed on an old family curse. But there is more to the story than meets the eye and Sherlock Holmes and Doctor Watson must separate fact from fiction and plausible from supernatural. Engaged in a race against time as Sir Baskerville's heir slowly goes insane as his death appears to become imminent, will Sherlock and Watson be able to solve the mystery in time?