After moving to Reseda from Newark, High School Senior Daniel LaRusso, encounters a group of karate thugs from the dojo Cobra Kai, led by Johnny Lawrence, who attacks him for talking to his ex, Ali Mills, during a beach party. After several confrontations, each escalating in intensity, he gets saved by his apartment complex's handyman, Mr. Miyagi, who's a master at karate. After making a deal with the Cobra Kai sensei, Miyagi takes Daniel under his tutelage to train him for the upcoming All-Valley Tournament.