Detective Conan OVA 07: A Challenge from Agasa! Agasa vs. Conan and the Detective Boys

名めい探偵たんていコナン 阿おもね笠かさからの挑戦ちょーせん状じょー! 阿おもね笠かさvsコナン&少年しょーねん探偵たんてい団だん

Professor Agasa is kidnapped and the Detective Boys must use clues found at his house and in various parts of the city in order to find him.