The two British agents, Kane Rhodes and Brian Jones, are sent to China to determine the origin of a new missile guidance system which can increase the distance a normal missile could travel. Their investigations keep them one step ahead of the authorities and eventually they are forced to flee over the border to North Korea. Their mission develops into a cat and mouse game where several times they have escaped capture by the skin of their teeth. The known location of their whereabouts was proving to be more than coincidence as they uncovered more sinister weapon developments that would allow North Korea to physically threaten the U.S.A. from their own homeland.
The duo are tasked with bringing out a sample of the completed missile guidance system and any improved armaments that went with it. This task was made all the more difficult by the relentless pursuit of a North Korean commander, the ever decreasing time scale - and the interventions of an MI6 mole.