Decades after their iconic 1984 All Valley Karate Tournament match, Johnny Lawrence is down on his luck, while Daniel LaRusso enjoys success. Seeking redemption, Johnny reopens the Cobra Kai dojo, attracting misfit students, including Miguel, whom he mentors in karate.

Daniel, troubled by Cobra Kaiโs return, starts his own dojo, Miyagi-Do, to counter Johnnyโs influence. The rivalry between the two dojos intensifies, impacting their students, including Johnnyโs estranged son, Robby, who trains under Daniel.

As tensions rise, their students clash, leading to violent encounters and shocking consequences. Friendships are tested, alliances shift, and Johnny and Daniel struggle to control the chaos theyโve created.

New threats emerge, including the return of John Kreese, Cobra Kaiโs ruthless former sensei, escalating the conflict. Johnny and Daniel must decide whether to keep fighting each other or unite to protect their students from greater dangers.