This story takes place at the end of the 19th century in London. A famous dog detective, Sherlock Hound, was relaxing with his pipe... Dr. Watson is, of course, with Sherlock. The night is very foggy. From the light of a street gas lamp, one can only see for a few yards. From the distance, a coach comes dashing towards Baker Street and stops in front of Hound's flat. Someone violently knocks at the door. "Watson, something's afoot!!" Hound in his well-known deer stalker hat and Inverness cape, leaves his flat in his prototype Benz with Dr. Watson.

(Source: Crunchyroll)

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