Cobra Kai has been around since 2018, when it debuted on a little-known platform you might've heard of named YouTube (well, YouTube Red, now known as YouTube Premium). Picking up 34 years after the events of The Karate Kid films, Cobra Kai reunites its stars Ralph Macchio and William Zabka in their roles as Daniel and Johnny to examine what happens when their rivalry reignites vis-à-vis their teenage children who are also — you guessed it — into karate.