Picks up where the first movie (Karate Kid) leaves off. Mr. Miyagi and Daniel take a trip to Okinawa to visit Mr Miyagi's dying father. After arriving Mr Miyagi finds he still has feelings for an old love. This stirs up trouble with an old rival that he originally left Okinawa to avoid. In the mean time Daniel encounters a new love and also makes some enemies.

Following up on a lead, L.A. Detective Mason Storm gathers evidence against the Mob and its political supporters but unfortunately, he is being monitored secretly, and when his cover gets blown, he will be home invaded and left for dead. Seven years later, Storm unexpectedly recovers from his deep coma only to realise that he needs to finish what he started and finally get even. In the end, now that Storm is unstoppable, no one will deny him of his rightful and devastatingly violent retribution....