A cocaine deal in Miami is interrupted by a group of motorcycle-riding ninjas led by Yashito, who steal the drugs and ride back to Orlando to party. At a club, Yashito's close associate, Jeff, sees his sister Jane onstage. She has become romantically involved with John, the bassist of the club's band, Dragon Sound, which consists of an ethnically diverse group of five men who are best friends, University of Central Florida students, live together, train Taekwondo together, and are all orphans. Jeff disapproves of his sister's relationship with John and confronts him at school, but Mark, rhythm guitarist of Dragon Sound, and Taekwondo instructor and father figure to the other band members, stands up to him. Another band confronts the owner of the club over his hiring of Dragon Sound, but gets beaten up. The band leader brings a large group of rowdy guys to Dragon Sound directly and fights them in the street, but Dragon Sound defeats them with Taekwondo. Consequently, the rival band enlists the help of Jeff, who summons Dragon Sound to fight at a train depot, but he and his gang are badly defeated by Dragon Sound's superior martial arts skills. Jeff tries again by kidnapping Tom, the lead guitarist and singer of Dragon Sound. The remaining band members stage a rescue, wherein they free Tom and accidentally kill Jeff. Yashito is angered by Jeff's death and sets out for revenge. Meanwhile, the keyboardist of the band, Jim, has revealed that he is searching for his long-lost father. He finally receives word that his father has been located, so the band pools their money to buy him a suit and then heads to the airport. Along the way, Yashito and his gang of ninjas surround Mark, Jim and John and chase them into a park, where they do battle. Jim is critically injured, but John and Mark manage to kill all of the ninjas, and Mark kills Yashito in single combat. At the hospital, Jim survives his wounds and reconnects with his repentant father.