Keep moving. Keep Fighting. Stay alive. The sickness struck everyone over fourteen. First it twisted their minds. Next it ravaged their bodies. Now they roam the streets - crazed and hungry. Sickos swarm the streets of London. Gathered in the center of the city, they lie in wait. The survivors have one final epic battle to overcome. Together they must work out a plan of attack and stop the grown-ups' reign of terror before it's too late.