Japanese pirates terrorized the harbors of China for decades until General Chi Ching Kwong (Ti Lung) masterminded a naval task force to combat the invaders.
Finally, the contingent adds the missing component to their team, that of weapons specialist, Mao Tin Yeung (Phil Kwok).
Even as General Chi Ching Kwong’s son and his newfound allies return to the palace, several Ninjas have infiltrated the household disguised as servants.
Mao Tin Yeung uses his wits to determine that the recent hiring of a palace maiden is indeed a female undercover Ninja.
They finally fight their way past the Ninja horde, only to discover the General’s son is the prisoner of the sword-wielding Shi Ping Wei!