Seventeen-year-old Christina Martine relocates from New York to Reseda, California , with her family , seeking a fresh start .Struggling to adapt , she mets Mr.Miyagi , a wise martial artist , and his student , Daniel LaRusso . Intrigued by their practice , Christina begins learning karate under Mr.Miyagi's guidance. Initially, she and Daniel harbor a rivalry, but as they train together , their bond deepens , transforming their competition into mutual respect and affection. Facile challenges both in and out of the dojo , Christina and Daniel navigate their evolving relationship, ultimatly participing together in the All-valley karate tournament , where their unity and growth are put to the test .