Master thief Lupin the Third disguises himself and attends a New York City auction, bidding on an antique ring. The ring holds the secret location of a legendary broach, which is said to bring good fortune to whomever wears it. When a bidder outbids him by one dollar, he decides to take the more traditional route and steal it, only to have it taken from him by a woman named Cynthia. Cynthia is the head of one of the largest new banks, "Bank of the World," and has plans of her own after she obtains the broach...