Set in 2002, three years after the events of the first film, the story follows Noa Izumi, Mina Tominaga, and Asuma Shinohara, Toshio Furukawa, as they test new Labors at a Metropolitan Police facility. The world around them feels uneasy as Isao Ohta, a police academy Labor instructor, helps guide the newer pilots while Mikiyasu Shinshi, Issei Futamata, has moved up to a leadership role within General Affairs. The veterans, including Seitaro Sakaki, Osamu Saka, and Shigeo Shiba, Shigeru Chiba, have stepped back to let fresh talent rise, with Hiromi Yamazaki, Daisuke Gori, Kiichi Goto, Ryusuke Ohbayashi, and Shinobu Nagumo, Yoshiko Sakakibara, remaining to keep the unit intact as Kanuka Clancy has permanently returned to New York. The shift in personnel marks a transition period, but the bond among the remaining Section 2 members remains intact even as their numbers are reduced.
Soon, the calm begins to fracture. Suspicious events ripple through Tokyo as rumors of a military takeover by GSDF forces begin to materialize, and martial law looms after the Yokohama Bay Bridge is destroyed by a missile. The public grows wary, and many fear that the JASDF could be behind the attack. In the following days, alarming actions escalate: JGSDF-marked gunships strike bridges over Tokyo Bay, cripple vital communication centers, and assault SV2 headquarters, while a supposed deadly gas is released after snipers from a Special Assault Team shoot down an auto-piloted blimp that had been jamming electronic systems across the Greater Tokyo Area. The atmosphere is tense, and trust in the government fades as the situation worsens.
In response, Kiichi Goto, Ryusuke Ohbayashi, and Shinobu Nagumo, Yoshiko Sakakibara, rally the original Section 2 crew for a secret mission. They gather in an abandoned subway passage and set out to bring in Yukihito Tsuge, a former GSDF officer whose clandestine calculations and plans have driven the current crisis. The aim is not merely to stop Tsuge, but to reveal the vulnerabilities within Japan’s military establishment that he believes have persisted for decades of peace. The operation tightens as they decide to pursue Tsuge to an artificial island that serves as his hideout, a location he has fortified against intrusion.
Along the way, Goto handles additional countermeasures, including the arrest of Shigeki Arakawa, a GSDF intelligence agent who was one of Tsuge’s former associates. This turn of events complicates the mission, suggesting that Tsuge’s conspiracy runs deeper than a single mastermind. As the team moves deeper into hostile territory, the tension intensifies, and they must rely on their training, improvisation, and the trust they have built over years of working together.
The pursuit traverses a dangerous landscape beneath Tokyo. The team uses an old stretch of the Ginza Line to close the distance toward Tsuge’s concealed base, a tunnel-turned-hideout that leads to an artificial island. Inside the island’s tunnel, a ferocious confrontation unfolds, and rising waters threaten to trap the team as they fight their way through armed resistance and structural instability. The stakes grow higher as the group fights to gain the upper hand and preserve lives around them.
At the heart of the climax, Nagumo makes a decisive push to break through to Tsuge, coordinating with Goto and the rest of the squad to arrest him. The confrontation tests every member’s limits, demanding a blend of precise teamwork and unwavering resolve. When the tunnel floods and the island’s defenses buckle, the team must execute a careful evacuation while staying focused on the ultimate goal: bringing Tsuge to justice and exposing the fault lines within a system that allowed his plan to take shape.
In the aftermath, the operation concludes with Tsuge’s arrest and a renewed discussion about the balance between security and liberty in a country wary of its own military strength. The events highlight the fragility of peace and the enduring commitment of the Tokyo Metropolitan Police’s Section 2 to protect the public, even as they navigate political intrigue, high-stakes threats, and the moral complexities that come with safeguarding a society on the edge of conflict. The film closes on a note of cautious vigilance, acknowledging that the line between order and upheaval can shift in an instant, but the resolve of the team remains steadfast.