In this episode, the time is set in 1901, a year of gaiety and romance. At his ancestral home, Robin's Post, Lord Seagoon is holding a masked ball. However, this is no ordinary ball—it's made of solid gold and weighs (excluding the mask) fourteen carrots, three turnips, and a mango! The story follows the comedic and chaotic events as Moriarty and Grytpype-Thynne attempt to secure this treasure and kidnap the guests at Robin's Post.