As one lot of high tech chip is stolen away from the Department of Defense, the government wants to know who do it. Cheung is now authorized to investigate the case secretly. Cheung schedules an un-escapable plan to trap the robbery. But fearing his two assistants have the risk, he orders two assistants stopped to investigate the case and lets his daughter as a spy enter in the terrorist organization to investigate the case in order to disintegrate the organization soon. His two assistants Man & Kuen feels unhappy, as they have already paid their effort in the case for few months. Although Cheung ceases their study on this matter, but two guys are still continue to purse the clue in secret. Finally, Man is murdered by the terrorist…….