In China, two young scientists, Ru and Mei Lien are tasked to finalise the production of a new and lethal biological weapon, soon realising the dangers to the world if it ever falls into the wrong hands. Meanwhile, Sean Docherty, ex-army now working for Ml6, has been assigned to investigate the rumoured production of a deadly weapon in the Far East. With his old friend James Horton, they soon discover that the threat comes as well...