Motoko's friend Courtin asks her to come to the hospital where she works. It seems a little girl just received a heart transplant, but the donor's family doesn't remember ever agreeing to donate the heart. Seeing the little girl reminds Motoko of her own past. When she mentions this story to Aramaki, he tells them to determine if this is tied to a ring of black-market organ smugglers supposedly run by the mafia.
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. Unfortunately, a female cyborg assassin named Fem has arrived first. Now it's a showdown between the Major and Fem, and a man's life hangs in the balance.
The Major has become worried about the Tachikomas. It appears that their AIs have developed much more quickly and in ways that were not anticipated; they have begun speaking about their "individuality". Worried, the Major calls Batou to a meeting; the Tachikomas, having suspicions of their own, attempt to eavesdrop on their conversation. What will be the fate of Section 9's Tachikomas?
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.
While at an international police conference in London, Aramaki drops by to visit an old flame who's now in the wine brokering business. She asks him to help her put a stop to the corruption in her company, but he tells her that it's out of his jurisdiction. Just then, however, two thieves break into the building and take them hostage. With a corrupt police official on the outside, it's up to Aramaki to keep them alive and buy enough time for the Major to figure out what's going on.
Aramaki attends the funeral of an old war buddy, and is greeted by his departed friend's daughter. She tells him that her brother is acting very strangely, and she fears that he may be up to something illegal. Aramaki sympathizes, but says there's nothing he can do legally. Later, Section 9 is assigned the task of protecting the Chinese Foreign Minister from being assassinated. And when they start searching for suspects, the son of Aramaki's friend is at the top of the list!
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.