Ninja of the Magnificence(1988)

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.