Set at the end of the 19th century in London, the story follows the famed canine detective Sherlock Hound. While relaxing with his pipe, he is joined by Dr. Watson on a foggy night when a coach races down Baker Street and comes to a halt outside Hound’s flat. A violent knock rings the door, prompting Watson to exclaim, “Something’s afoot!” In his trademark deer‑stalker hat and Inverness cape, Hound departs with Watson in a prototype Benz to investigate the mystery.