A gifted piano tuner's meticulous skills for tuning pianos lead him to discover an unexpected aptitude for cracking safes, turning his life upside down.

After a family tragedy, kung fu prodigy Li Fong is uprooted from his home in Beijing and forced to move to New York City with his mother. When a new friend needs his help, Li enters a karate competition – but his skills alone aren't enough. Li's kung fu teacher Mr. Han enlists original Karate Kid Daniel LaRusso for help, and Li learns a new way to fight, merging their two styles into one for the ultimate martial arts showdown.