Each twelvemonth, three brother Samuel, Jeffrey and Michael Stephen A. Douglas visit their Nipponese gramps, Mori Shintaro whom the male child dearly mention to as grandfather, for the summertime. Mori is a extremely skilled in the W. C. Fields of Martial humanistic discipline and ninjitsu, and for old age he has train the male child in his technique. After an form offense peal professor to be too much for the FBI, it’s clip for the 3 blood brother ninja! To use their soldierly humanistic discipline skill, they team up up to conflict the offense ring and overreach some really relentless kidnapper!