British Prime Minister Gabriel Bryce lies injured in hospital, a survivor of the Whitehall bomb that has killed most of his Cabinet and thrown the country into chaos.
Elsewhere, another explosion destroys Britain's biggest mosque, slaughtering hundreds. Framed for the atrocity, Afghan veteran Danny Whelan goes on the run, now Europe's most wanted man.
The plot is underway, the target Britain itself.
As the dead are buried and a new government takes power, Bryce and Whelan realise they are pawns in a vast conspiracy, one designed to crush a rebellious Britain and throw open the gates of Europe. To survive the coup they must stay one step ahead of their enemies, led by a ruthless British politician determined to see them both dead.
And Britain transformed for all time.