In 19th century London, the renowned canine sleuth Sherlock Hound enjoys a serene evening with his loyal companion Dr. Watson amidst the thick fog. Suddenly, a mysterious visitor interrupts their peace, prompting Hound to exclaim, 'Watson, trouble brews!' Clad in his iconic deerstalker hat and Inverness cape, Sherlock embarks on a hasty investigation, racing through the dimly lit streets in his innovative Benz vehicle, with Watson by his side.