Walled In

A weapon, designed 'in the dark' at an army barracks just outside of Cardiff, South Wales, has been unleashed.
Intended for use against enemy troops, the chemical, comprising Bird Flu, Bovine Flu, and Foot & Mouth, turns those affected into murderous lunatics for twenty-four hours before the body finally shuts down.
Jeff, a mild-mannered air enthusiast, decides to make a break for the plane he has stationed at Cardiff airport.
Between Jeff and freedom stand millions of infected.
If only he can reach the hangar, then he'll be safe...