The movie is about a rock band/group of orphans/University of Central Florida students who are all Taekwondo blackbelts. I guess during the 80s, people still thought it was an effective means of self-defense and hey, it looks cool.
The band seems to be a decent group of guys and even their rock songs sing about being friends for eternity. They seem to be happy, positive people until a group of ninjas takes control of the drug scene. Dragon Sound's (the name of the band) next act is to defeat the ninjas, thugs and everyone else involved.
You wont find anything Grammy winning in this flick, but you will find tons of terrible acting, cheesy special effects, embarrassingly catchy 80s songs and a Korean guy named Chang (who could've guessed) laying down some whoopings.