Netflix just dropped the trailer to Season 4 of their hit series Cobra Kai, the sequel to the The Karate Kid movies from 1980s! The show has always celebrated the decade it came from , especially the music. The trailer for season 4 features the iconic 1980s hit song “Rock of Ages” by Def Leppard. Cobra Kai, takes place over 30 years after the events of the 1984 All Valley Karate Tournament with the continuation of the inescapable conflict between Daniel LaRusso (Ralph Macchio) and Johnny Lawrence (William Zabka). Season 4 finds the Miyagi-Do and Eagle Fang dojos joining forces to take down Cobra Kai at the All Valley Under 18 Karate Tournament… and whoever loses must hang up their gi. The series also stars Martin Kove and Thomas Ian Griffith from the movies.