Tom Pearson grows up in an impoverished, north-eastern English city. A socialist by virtue of his upbringing and an unabashed supporter of the Russian communist party. While at University, studying physics, he is seduced by a female lecturer and recruited as a Russian sleeper agent.
He spies for the NKGB providing classified British research into radar and other advanced technologies during the Second World War, before he is turned by MI5. With his help, the agency discovers and prosecute a Russian network of scientists in Britain who had infiltrated its wartime research departments. The reaction of the Russians to his betrayal is ferocious and the NKGB set out to eliminate him...
After one failed attempt and suspicion of a possible Russian mole in MI5, Tom disappears into post-war Britain in a game of cat and mouse that Tom simply cannot afford to lose...
