High school student Lane Meyer sinks into suicidal depression when his girlfriend dumps him for jock Roy Stalin, the high school ski racing champion. Meanwhile, he has to deal with his eccentric family, a tenacious paperboy and an obnoxious neighbor whose mother is hosting a beautiful French exchange student named Monique.
Daniel, a fatherless teenager, arrives in Los Angeles and becomes the object of bullying by a gang of karate students when he strikes up a relationship with Ali, the gang leader’s ex-girlfriend, so Daniel asks Miyagi, a master of martial arts, to help him learn karate.