In the late 19th century, Mack, a heroic outlaw who stole from the rich to give to the poor, was loved and respected by the people, but he had long been a difficult case for the Yard. With the help of Sherlock, detective Gordon Gorilla Riller and Carlson Fox finally managed to catch Mack at his daughter Katie's birthday party. But Sherlock was then reviled by the people for arresting their hero.
