قسمت 4: کونان در حالی که از سه تعقیب‌کننده مافیا فرار می‌کند، نقشه‌ای که به سکه‌های طلا منجر می‌شود را رمزگشایی می‌کند.

4

After visiting an exhibit on hidden treasures Conan and his friends find a piece of paper with symbols and the word "Oro" written on it. A treasure hunt ensues but they do not discover much. Conan, initially not interested in the children's treasure hunt finally realizes that the paper is a treasure map after learning that "Oro" means gold in Italian. That night, Conan determines that the symbols refer to neon light signs on buildings. Following the clues they find gold coins in a sack hanging from the ceiling of an abandoned building. Three suspicious men had been following the kids in order to find the location of the gold. But with Conan's quick thinking, they come up with a plan to capture the men. The three men are Mafia members and the gold was hidden from them by a traitorous accomplice. Later, Ayumi gives Conan a kiss on the cheek, thanking him for saving them while Mitsuhiko and Genta stare jealously. (Source: Wikipedia)