An expert detective Park inspects a gang of Jang Do-Il and Ma Jin-Du, who acts mainly at Inchon port' piers. Both crime groups make every effort to take power. Jang Do-Il asks Dr. William to make remote control robot (artificial man) to defeat Jang Do-Il. Jang keeps three robot, that is, Il-Keol, Ee-Keol and Sam-Keol, to attack Ma's agitating post unexpectedly and deprive Ma of the smuggled goods. The three robots become powerful so that the police starts to inspect in full scale. Dr. William intends to move the robots to Hong Kong. Being aware of such a plan, William's female secretary informs the robots that they have been wrongly used for the crime. Upon hearing such an information, the robots rush to William to destroy his plan.