3 Ninjas Knuckle Up was released in the year 1995。3 Ninjas Knuckle Up is also called as 3 Ninjas groß in Fahrt, 3 ninjas på krigsstigen, 3 ninjas se révoltent, 3 Ninjas Fight & Fury, Tre piccole pesti, Tres ninges durs de rosegar, Tres ninjas peleones, Kolme Ninjaa sotapolulla。
In this movie Rocky, Colt and TumTum must battle an evil wealthy toxic waste dumper in order to save a local Indian tribe and their friend Joe. The 3 Ninjas must help find Joe's father and find a secret disk that contains evidence that could stop the toxic landfill that is destroying the Indian community. However the town is owned by the rich man and he controls the police and even the mayor. They must fight a motorcycle gang and renegade cowboys in this non-stop ninja adventure.