Special agent and scientist Jim Johnson is under threat and this time it's personal. London businessman Amir and the ruthless psychopath Najma are both out for revenge. They want to destroy him by any means possible and Najma aims to use the most important person in Jim's life, his lover Heather.But both are linked to a savage and brutal drugs cartel whose suave and intelligent leader is involved in a multi-million dollar computer fraud. Their machinations could harm the governments of Mexico, the United States and Great Britain.At first alone, Jim eventually enlists the help of his friends in the military and his partner Brush. The twists and turns in this brain-teasing and thrilling adventure follow them as using their skill, experience and the latest in warfare technology, they attempt to outwit the villains. But will Jim be able to save Heather and her colleagues and will he eventually be forced over the line?