Each year, three brothers Samuel, Jeffrey and Michael Douglas visits their Japanese grandfather, Mori Shintaro whom the boys affectionately refer to as Grandpa, for the summer. Mori is a highly skilled in the fields of Martial arts and Ninjutsu, and for years he has trained the boys in his techniques. After an organized crime ring proves to be too much for the FBI, it's time for the 3 brother NINJAS! To use their martial arts skills, they team up to battle the crime ring and outwit some very persistent kidnappers!

• DirectorJon Turteltaub
• Release7 August 1992
• Genre
  Family / Action
• Duration1h 36m
• Budget$6,500,000
• Revenue$29,000,301
• Rate
  

  5.7
  452 reviews
• Productions

  Touchstone Pictures