One of Britain's top particle physicists, Jack Barclay, is on the verge of a major breakthrough in developing the nuclear fusion process into a clean and sustainable alternative to carbon fuels. News of this spreads round the world causing great interest in most nations but grave concern in Russia. When other countries, including America, seek collaboration to help speed his work, Russia determines to put an end to Barclay's research at the Harwell and Culham laboratories.
As a top-secret British intelligence agency is tasked with protecting Barclay, one of Russia's top KGB agents is sent to arrange his assassination. The twists and turns of the action-packed plot take us, with the intelligence agency's team, from England's nuclear research laboratories to a final, bloody, gunfight in the Swiss Alps.