A deadly secret whispered by a dying gunrunner on a lonely road in Zambia sets MI6 agent Sam Packer on a frantic race against time. A terrorist gang has acquired a horror weapon but before Packer can discover more, the man dies. Packer is on his own, faced with sceptical colleagues and the gunrunner's daughter, Julie, who may hold the key to the secret but who also suspects it was Packer who engineered her father's death.

Fifty-five years after the end of World War Two, Tetsuo Kamata is a wealthy businessman, but he was once an interrogator in a Japanese Prisoner of war camp. One of his victims, Peregrine Harrison, recognizes him. Harrison never got over his maltreatment at Kamata's hands and has dreamed of killing him ever since. Now he has his chance. But if Kamata dies, so do the livelihoods of hundreds of car factory workers. MI6 officer Sam Packer is diverted from his hunt for an ex-SAS drug trader in Thailand and given the order to stop Harrison. The search takes him deep into Harrison's past and to the poppy fields of The Golden Triangle. To save Kamata from execution, Packer must penetrate an alien and hostile world, a quest which brings him face to face with the very drug lords who have sworn to kill him.