Kaizoku Sentai Gokaiger — Season 1, Episode 39: Why? We're High School Students
Action & Adventure, Sci-Fi & Fantasy, Kids • 25 min • 1 season, 51 episodes • ★ 7.5/10
Episode synopsis
With Navi's next clue being "Moroboshi High School", Gai realizes that their next clue to the Greatest Treasure in the Universe has to do with the Megarangers. The Gokaigers visit the high school, and discover that Kenta Date, the former Mega Red, has become a teacher, and he tells them that they must become his students in order to obtain his team's greater power
About Kaizoku Sentai Gokaiger
A group of young pirates from space come to Earth to obtain the "Greatest Treasure in the Universe", which can only be acquired after obtaining the Ultimate Powers of the 34 Super Sentai. However, they end up running afoul of the Space Empire Zangyack, whose earlier invasion forces were wiped out by the 34 Super Sentai long ago. As a result, the space pirates use "pirate copies" of the powers of the older teams and fight the Zangyack forces as the Gokaigers.