Cobra Kai takes place 30 years after the events of the 1984 All Valley Karate Tournament and finds Johnny Lawrence on the hunt for redemption by reopening the infamous Cobra Kai karate dojo. This reignites his old rivalry with the successful Daniel LaRusso, who has been working to maintain the balance in his life without mentor Mr. Miyagi.
In the aftermath of Cobra Kai’s win at the Under 18 All Valley Karate Championships, Johnny questions his dojo’s philosophy and deals with a figure from his past. Daniel searches for the right way to respond to Cobra Kai’s dominance.
When Daniel starts teaching his first karate students, he questions whether he can fill Mr. Miyagi’s shoes. Johnny invents some unorthodox training methods with help from an unlikely source.
Daniel pulls out all the stops in an effort to recruit new students to Miyagi Do. Johnny reflects on some of the major relationships in his life - and responds to Daniel’s promotional efforts with his own.
Daniel makes another attempt to promote Miyagi Do, and receives guidance in a familiar form. Johnny grows suspicious about Kreese’s backstory. A new Cobra Kai student challenges Miguel and befriends Aisha, while Robby revisits a past he’d rather forget.
Daniel struggles to help a new student learn. Miguel makes a new connection, while Johnny tries to repair a relationship. Tensions between the two dojos build to a breaking point.
Daniel’s students are given a lesson in overcoming their grudges. Johnny spends some time away from the dojo, while Kreese exerts his influence.
To prepare his students, Daniel gives some new training methods a shot. Miguel puts a new lesson into practice. Johnny makes a tough but pivotal decision that affects Cobra Kai.
Daniel works to make amends with Amanda, while Johnny is introduced to the world of dating apps. Complications arise when Miguel, Samantha, Robby and Tory cross paths.
Johnny cautiously takes a stab at love, while Daniel and Amanda enjoy a romantic date night. An attempt to bring the students of the two dojos together backfires as hostilities between the teens escalate.