At a press conference, the Superintendent-General makes himself a prime target for the Laughing Man's threat. Section 9 has gathered enough evidence to arrest Nanao=A, but before they can, he is able to release a modular, delayed-action virus. The virus seems to only affect those on the security detail that is guarding Superintendent-General Daidō. However, Section 9 will not know who on the security team has been taken over by the virus until the symptoms begin to manifest. By that time, it may be too late.

A high-level hacking has occured at the Ministry of Health, Labour and Welfare. Section 9 has traced the source of the hack job back to a vocational aid center located high in the mountains.

The hack was done by someone very skilled since it only took two hours to crack the MHLW's ultra-secure barriers. The odd thing is that the MHLW has not filed a formal complaint about the incident. Togusa is sent undercover to discover what is going on at the aid center.

Aramaki and Kusanagi attend an international security conference in London. While there, Aramaki visits an old acquaintance of his, who is the operator of a wine fund, a place where people store their wines in order to let the wine age and become more expensive.

Their meeting is not purely a social one, but before Aramaki and his friend can sit down and talk about the old days, the bank is broken into by two mafia men.

The Laughing Man returns and, just as he did six years ago, kidnaps the President of Serano Genomics without being detected. Section 9 arrives too late and sets out to find him.

Meanwhile, the Laughing Man and Mr. Serano discuss what happened six years ago. The stakes are much higher this time, and for the Laughing Man failure is not an option.

A cat thief named Cash Eye has infiltrated a building owned by Federation of Economic Organizations Chairman Tsutomu Tadokoro. The cat burglar made quick work of the top-notch security system and left a calling card on the Chairman's desk saying that Cash Eye will be infiltrating his vault during an upcoming party.

Albeit reluctant to get Section 9 involved, Aramaki has no choice but to assist Tadokoro. Prime Minister Kayabuki has requested that his unit go undercover in order to prevent the burglary.

During a visit to the Dejima Refugee Residential District off the coast of Nagasaki, Prime Minister Kayabuki receives a bouquet of flowers that is accompanied by an envelope stamped with the diamond seal seen in "NATURAL ENEMY". The envelope contains a letter that promises an attempt to take the Prime Minister's life.

At a meeting of the Prime Minister's Cabinet, Aramaki is shown the letter and told that so far the stamp on the envelope has turned up in eight other terrorist incidents. The Cabinet calls for Section 9's assistance. However, much to the unit members' chagrin, Section 9 will not be deployed in an offensive role.

Training has commenced to find new recruits for Section 9. With Motoko acting as the target, Batou and Togusa watch as the recruits try to keep up with the Major.

After ditching some of the recruits, Motoko has to lose just one more pair. She ascends some stairs in an alley and the recruits follow her. Moving out into the street above, the recruits see that they have lost the target. However, Batou and Togusa have lost contact with the Major as well.

During a scheduled maintenance, the Tachikomas begin to chat away about the Individual Eleven.

While talking in their new "forum", Batou and Togusa appear and take one of the Tachikomas - who just happens to be Batou's pet - with them to Spring-8 to look at the scientific evidence gathered on the Individual Eleven.

With the felling of Dejima Bridge by the refugees, a rumor circulates around the Cabinet that the refugees plan a mass suicide bombing using nuclear bombs. Fearing this, the Cabinet steps up the attack against the city. Meanwhile, Prime Minister Kayabuki has been secretly arrested and taken to an unknown location. Aramaki, Togusa and Proto, in trying to help the P.M. are also taken into custody and secured in her office.

With Section 9 having entered the non-communication zone and Aramaki being cut off from communication, Ishikawa and a Tachikoma make their way to Spring-8 on their own. Meanwhile, Gouda has sent an unwitting Section 4 after Section 9 to retrieve the plutonium.