Tina Shepard, a telekinetic teenage girl, accidentally unchains Jason from his watery grave, allowing him to go on another killing spree in the area.
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.
A military experiment to create a race of super-warriors goes awry, as legions of murderous zombies are unleashed upon a suburban neighborhood.