Led by Daisuke Aramaki and Motoko Kusanagi, Section 9 deals with such crimes over the entire social spectrum, usually with success. However, when faced with a new A-level hacker nicknamed "The Laughing Man," the team is thrown into a dangerous cat and mouse game, following the hacker's trail as it leaves its mark on Japan.

Led by Daisuke Aramaki and Motoko Kusanagi, Section 9 deals with such crimes over the entire social spectrum, usually with success. However, when faced with a new A-level hacker nicknamed "The Laughing Man," the team is thrown into a dangerous cat and mouse game, following the hacker's trail as it leaves its mark on Japan.