3 Ninjas Knuckle Up

Three young ninjas named Rocky, Colt, and Tum Tum use their martial arts skills to protect a Native American community. A wealthy businessman has turned the tribe's land into a toxic waste dump and uses his influence over local officials to maintain control. To stop the pollution and save their friend Jo and her father, the boys must recover a secret disk containing evidence of the man's illegal activities. Along the way, they face off against a motorcycle gang and other hired thugs.

This action comedy was directed by Shin Sang-ok, following his previous work on To the Last Day and Vanished. The film stars Victor Wong as Grandpa, alongside Charles Napier and Crystle Lightning, with Michael Treanor, Max Elliott Slade, and Chad Power playing the three lead children. Produced by TriStar Pictures in the United States, the movie features a credited cast of 31 people and a crew of 177.

Audience reception was mixed. On IMDb, the film holds a rating of 4.4/10 based on 6,800 votes, while on TMDB, it has a slightly higher score of 5.2/10 from 226 votes.