After Corey emerges as the runner-up in a martial arts tournament, he befriends the champion, Peter. Meanwhile, an increasing number of assault cases targeting girls is amking everyone in school nervous. When Joni and Corey save Peter's sister Susie from being abducted, they learn that Peter began studying self-defence in order to protect his sister. Then, a strange man is seen hanging out around the school! How can everyone start to feel safe again?