If Shinjuku's the place, then City Hunter is on the case! In this exciting adventure, Ryo and Kaori find themselves on a 'missing persons' case that could somehow be related to the national security of the global world when a lovely young European pianist named Nina Shuntenberg comes to them asking for help in finding her long-lost father, whom she has never seen in many years. What starts out as a simple assignment quickly turns into a perilous mission to find a top-secret microchip involving mercenaries, diplomatic agents and a mysterious spy named Colonel Helzen who has a few secrets of his own. Now, Ryo, Kaori and company must find the microchip and discover why there are dangerous people chasing after Nina...that is if they can keep Ryo's mind off of getting into Nina's pants for one day!