One would think that after the previous two adrenaline-soaked installments in this series that the franchise would run out of steam, but instead of moving forward at the breakneck speed one would expect, instead it slows down and looks inward, finding fertile new ground to explore. One such example is when the boys first meet their native american uncle, and are illuminated to the ecological problems in our consumer specific culture. Not since "Fire Down Below", has their plight been so real that you cannot ignore it, and must hold yourself to blame. Another prime example is when Tum Tum runs afoul of the Yakuza, and his brothers steadfast protection of him in the face of danger. A bold, artistic statement, Three Ninjas Knuckle Up gives up the way of punches and kicks, and chooses the love of family over blitzkreig martial arts shenanigans in what is the most refreshing film of the year, and a prime candidate for film preservation. (All things said, I must admit that my review may be a little biased, being that I played "Ninja who gets hit in the crotch #3", so I hope you'll bear with me)