Richard Knox is a secret agent in big trouble. He?s been hung out to dry by a traitor in MI5, and the only way to clear his name could destroy him. Meanwhile in a secret Russian city, brilliant scientist Irina Valera makes a discovery that will change the world, and hand the KGB unimaginable power. Desperate for a way back into MI5, Knox finds an unlikely ally in Abey Bennett, a CIA recruit who?s determined to prove herself whatever the cost?