Washington is being brought to its knees by a terrorist bombing campaign. Ill-equipped to deal with the spectre of domestic terrorism the FBI call in the experts: Scotland Yard's anti-terrorist squad and Jack Swann. Meanwhile FBI agent Johnny Harrison is facing up to old ghosts as he investigates a series of killings - and unearths an old friend and a plot to arm the militias for the coming war that will tear the USA apart. For years the USA has been spreading internal strife in countries opposed to it. Now someone is doing the same to them, and only two men, one English, one American, can save the world's most powerful nation - from itself.