Zach is small for a sixth-grader and the girls at school make fun of him, but when one girl in his class starts showing him some Tae kwon do moves and teaching him about martial arts, things begin to change.
Julie Pierce is angry at everyone so, when Mr. Miyagi offers to teach her karate, she thinks she will be able to teach everyone a lesson...including the Alpha Elite. Mr. Miyagi tells her she must look for a way not to fight and to respect herself first.
Daniel is the new kid in town who runs into trouble when he starts dating the ex-girlfriend of a karate gang leader. Wanting to fight back, he asks his handyman Miyagi, who is a karate master, to teach him how to defend himself.