MI6 agent Sam Packer watches powerlessly as a trouble-making gunrunner is shot down in front of him on a lonely road in Zambia. As life slips from his grasp the arms smuggler whispers a heart-stopping warning to Sam: a terrorist gang has a horror weapon and means to commit mass murder.
But the man dies before naming the gang, its nationality or its cause. Is the weapon nuclear, chemical or biological? The world's intelligence agencies are desperate to know. Packer has his own ideas about how to crack the case and is convinced that Julie, the gunrunner's daughter has been given the answers. In turn, she suspects Packer to be her father's murderer.
The two are thrust together in an unlikely pairing as world events threaten to spiral out of control. Packer is convinced the key still lies with Julie. Only by winning her confidence can he break the ring of silence and penetrate to heart of the sinister organisation known as 'The Lucifer Network'.