In the constant power struggle of the martial arts world, wandering swordsman Fu Hung-hsueh (Ti Lung) is continually defending his number-one position against the ambitious Yen Nan-fei (Lo Lieh).

With the appearance of a mysterious army of assassins, led by the shadowy figure Mr Yu, the two swordsman put their rivalry is put on hold to face this common foe. Mr Yu is seeing the powerful Peaock Dart, kept safe by the a weapon that would allow him to defeat anyone who stood in his way.