Evil aliens led by Lothor have attacked all the ninja academies as part of his diabolical plot to take over the earth. Only three students from the Wind Ranger Ninja Academy and two students from the Thunder Ranger Ninja Academy remain. Now these students from rival ninja academies must team up with the mysterious Green Samurai Ranger to save the world.

Evil aliens led by Lothor have attacked all the ninja academies as part of his diabolical plot to take over the earth. Only three students from the Wind Ranger Ninja Academy and two students from the Thunder Ranger Ninja Academy remain. Now these students from rival ninja academies must team up with the mysterious Green Samurai Ranger to save the world.