在这部无敌龙卷风片中,沉眠于地底的伊采尔(イザール)星人再度对地球侵略而来! 由关(花月)博士率领着的无敌(地球システム)研究所,以其所秘密开发的无敌航舰(ゴッドフリーダム)与无敌王(ガ・キーン)开始战开反击!
Earth is invaded by the Izaru people and Doctor Kazuki builds a robot who's pilots joint bodies in a metallic plate locking itself on the Gakeen robot's frame thus enabling the super robot to move and fight.