Having won a karate championship in Southern California, teenager Macchio and mentor Morita find new adventures on Morita's home island of Okinawa. Because his father is dying on Okinawa, Morita is about to return after a self-imposed 40-year exile, and Macchio decides to go with his teacher. It seems that Morita's childhood sweetheart, (McCarthy) was pledged to marry his old pal, (Kamekona), although she loved Morita. Rather than fight for McCarthy, Morita left the field to Kamekona, assuming that the two married. McCarthy is still single and still beautiful, and Kamekona is still angry. Now Kamekona wants to have that fight with Morita, while Macchio runs afoul of Kamekona's nephew, Okumoto. Morita, who was nominated for an Oscar for his work in the original, reprises his role well, but writer Kamen seems to have replaced much of his humorous dialog from the first picture with pseudo-Confucianisms--a mistake because not many people can deliver comic lines as well as Morita. Macchio, for his part, is an obviously intelligent actor with terrific instincts. Still, this movie leaves a bit to be desired: much of the movie seems recycled, and there is precious little subtlety in the villains' characterizations. The film is also about 15 minutes too long, with far too many convenient plot devices. The song "Glory of Love" was nominated for an Oscar.