Kenbishi Heavy Industries has built a state-of-the-art multiped tank. There's only one problem–it's gone haywire and started moving on its own. Section 9 is called in to stop it, as the Self Defense Force will not get involved. Now, it's up to Motoko, Batou, and the rest of Section 9 to stop the tank and figure out what made it go berserk in the first place.

Motoko enters into an online chat room devoted to the Laughing Man to see if she can find any new information on him. What she discovers is a spirited debate among the self-proclaimed "fans" of the Laughing Man, but very little hard evidence.

Marco Amoretti, a former Navy Petty Officer from the American Empire, has come to Japan and is committing heinous acts of brutality against women. Section 9 is assisted in this matter by the American Empire's CIA. While this doesn't sit well with Public Security's members, Batou finds the whole case particularly hard on his psyche as the nightmares from his past rear their ugly head.

Togusa goes undercover at a hospital for patients with Closed Cyberbrain Syndrome, a hospital completely cut off from communication with the outside world.

The Chinese government contacts Section 9 to let them know that an assassin may have entered Japan to kill a famous reclusive millionaire. Despite their considerable efforts, however, Section 9 is unable to contact him to warn him, so they go directly to his residence.

Batou goes undercover on a military base to shadow one of his former heroes, a man named Zaitsev who was an Olympic silver medalist. Now, however, he's under suspicion of espionage. Batou befriends him easily, and the two really seem to get along--which is unusual for Batou. But when Batou learns the truth behind his hero, he must make a very difficult decision.

Togusa is on the trail of the Laughing Man again, and this time, his investigations lead him towards both a leading micromachine corporation and an NGO called the Sunflower Society.

The government orders Section 9 disbanded. Aramaki is taken away, and Togusa is arrested. Motoko assembles the remaining team members at HQ for one final mission. They prepare for a full-scale assault while Elite troopers and Armed Suits descend on Section 9 HQ.

A group of terrorists identifying themselves as the "Individual Eleven" barricade themselves within the Chinese Embassy. Section 9 is called in to eliminate the terrorists without any civilian casualties, all before the scheduled police raid.

=A hacker and thief by the name of Cash Eye plans on infiltrating a vault during a party, and Section 9 is called in to prevent it. But there are a number of strange elements in this case that don't all add up.

An assassination threat has been made against Prime Minister Kayabuki; Section 9 is called to serve as bodyguards Meanwhile, investigation on the Individual Eleven turns up some interesting history.

A seemingly run-of-the mill hit-and-run turns into anything but when Togusa investigates. While in Tokyo, he discovers a secret from the past the GSDF is trying to keep hidden deep underground.

Plans have been leaked to terrorists that the plutonium recovered from the underground nuclear facility in Tokyo is to be moved. Section 9 is called in to ensure the plutonium reaches its destination, and Gohda is there again.

The Tachikomas and the Major continue to investigate Gohda and his motives, while the rest of Section 9 are out to stop a string of suicide bombings.

Saito recounts his first run-in with the Major, and how he became part of the group that would eventually become Section 9.

Following a tip, the Major conducts an undercover investigation of Kuze in Taiwan. While there, she saves a boy running from the Mafia.