Until the war spilled over into Western Europe, swamping the streets with violence and chaos.
London has become the target for her enemies, seeking hostages and retribution.
The military is thousands of miles away, fighting in wars we have long ceased caring about.
There is nowhere to turn, no way of fighting back, and no one to help.
Conceived in the Ghost Room, and forged in the deserts of Utah, the solution is violent and controversial.
For killing has consequences.
But what option do you have when there are no options?
But then, how do you control something you have designed to be unstoppable?