Based on

Movies like Battle Girl: The Living Dead in Tokyo Bay (1991)

A meteor lands in Japan and the fallout creates a “shield” around Tokyo, encasing the city in a foggy darkness. A state of martial law is declared. People are in a panic as violent crime and corruption spreads throughout the region and punk gangs are ruling the streets. As if things weren’t bad enough, a chemical reaction from the meteor unleashes a deadly virus and now the dead are coming back to life as flesh-eating zombies!