Ross, Farris and Lee are star pupils of the Ninja Master, but Ross is secretly building his own ninja empire and dealing in the slave trade, headed by two slave masters Old Fox and Kong. When Ross kills the master, the two brothers must battle their way through an army of ninjas to bring the wrongdoers to justice. Hong Kong cut and paste edit of the 1986 Korean film "아라한 " (Arahan) with new ninja scenes.

An organized gang specializing in high ranking military assassinations bewilders the police. However, their headquarters are located and a special agent is sent to terminate all members of the gang.