The year is 1999 and Tokyo's Mobile Police have a new weapon in the war on crime, 'Labors'. Labors are gigantic robots used for everything from construction work to law enforcement. When Patlabor cops Noah Izumi and Azuma Shinohara investigate an unexplained wave of rogue Labors rampaging across the city, they uncover a sinister revenge plot to infect Tokyo's population of 8,000 Labors with the deadly BABEL virus. With the future of the city hanging in the balance and a typhoon poised to trigger the devastation, Noah, Azuma, and their teammates must destroy the source of the virus, the giant Babylon Project tower in Tokyo Bay, in a battle to the finish.