Crisis Zone is a light gun arcade game released by Namco in 1999, a spin-off of the Time Crisis series. As a feature, it handles a large machine gun type controller instead of a handgun like the conventional work. In 2004, the Playstation2 version was released with Guncon2 support.

In August 2000, Garland Square opened on the outskirts of London, with a large department store, office buildings, and a park next to each other.

However, on October 16, two months after opening, it was occupied by the anti-British terrorist organization "URDA" led by Derrick Lynch.

To suppress terrorism, the British government has dispatched a special anti-terrorism unit, the STF, to the area.