In a small software engineering company in England, a game changing algorithm for encrypting data has been invented, which will have far reaching consequences for the fight against terrorism. The Security Services of the UK, USA and China all want to control the new software. The Financial Director has been murdered and his widow turns to her brother-in-law to help discover the truth. But he soon finds himself framed for his brother's murder. When the full force of government is brought to bear on one family, they seem to face impossible odds. Is it an abuse of power or does the end justify the means? Only one man can find the answers but he is being hunted by the same people he once called friends and colleagues.