The computer networks have been hacked in Tokyo by somebody that has been using a image of a Cheshire cat and the city is now at a stand still, The AMP team try to find the hacker.
A young woman, Katsumi Liqueur gets invited by police chief Rally Cheyenne to the area of Tokyo on a promise of giving her information about her late mother. But what she doesn't know is that she gets enlisted to the AMP to fight the Lucifer Hawk.
A Lucifer Hawk breaks through the AMP gate to try to give Katsumi information on her father. Also, The Lucifer Hawks have broken through into the city.