Members of Section 9 seek out a man named Philip Kukushkin, a Russian national who seems to know a lot about the creation of posthumans.

US special operations forces join the Section 9 team in their fight against a relentless posthuman named Suzuka Mizukane.

While extracting information from Kukushkin, the Section 9 team uncovers some shocking information about an AI program developed by the US government.

Worried Purin might be a spy for the Americans, the Major sends out a crew of Tachikoma to look into her hidden past.

Togusa finally realizes that he's been trapped in his own memories - and suddenly finds himself in a devastated Tokyo in the year 2045.

After hearing from Togusa, Batou and the others head to Tokyo; back in Fukuoka, the Major learns that a post-human has hijacked a nuclear submarine.

Resurrected as a full-body prosthetic cyborg, Purin tries to hitchhike her way to Tokyo; U.S. special operations forces face Mizukane's wrath.

Batou and the group get an update on the post-human situation from Standard; the Major and Purin join the rest of the crew in Tokyo.

To take back control of the hijacked nuclear submarine, the Section 9 team targets Mizukane and Takashi Shimamura.

Kusanagi and her team do everything they can to stop the United States from implementing its Draconian plan to end the nuclear standoff with "N."

The Section 9 crew members start living their regular lives as if nothing ever happened, and the only one who finds it strange is Kusanagi.