The movie begins with a girl named Jenny, who is trained in martial arts by her father, Brack. She stands up to bullies at her new school, but is initially misunderstood as a bully herself. Jenny befriends Alex, a boy who wants to learn how to defend himself, and teaches him martial arts. As the story unfolds, Jenny and her friends face off against a group of bullies led by Ron, the school president, who is secretly a bully himself. Ron is pressured by a gang leader to join their group and pay an entrance fee, which he tries to obtain by stealing from his classmates.
Jenny and her friends eventually defeat the bullies, and Ron's true nature is exposed. The movie ends with Jenny and her friends training others to defend themselves, and a sense of justice being restored at the school.
Here are the key facts extracted from the text:
1. The movie is about a girl named Jenny who is trained by her father, Brack, in martial arts.
2. Jenny is expelled from her old school for defending herself against bullies.
3. Brack enrolls Jenny in a new school, where she meets new classmates, including Alex, Ron, and Harry.
4. Ron is the president of the school, but he and his friends are bullies who bother others.
5. Jenny befriends Alex and Harry, who are also being bullied by Ron and his friends.
6. Brack owns a martial arts school where he teaches Jenny and later Alex and Harry.
7. Alex asks Jenny to teach him how to fight, and she agrees.
8. Ron and his friends try to intimidate Jenny and her friends, but they defend themselves.
9. Harry falls in love with Jenny, but she doesn't reciprocate his feelings.
10. Ron joins a gang and tries to get Harry to join too, but Harry refuses.
11. The gang leader, Tyler, threatens Ron to pay an entrance fee or face consequences.
12. Alex and Harry defend themselves against the bullies, but they need more training.
13. Brack gives the boys stronger training to help them defend themselves and others.
14. The friends improve their fighting skills and eventually defeat the bullies.
15. The movie ends with Brack training a group of girls to defend themselves, and Harry and Alex waiting for their turn to train.