A series of incidents occur in Tokyo Bay including a damaged undersea cable, and a car being pulled off a pier. Could this be the work of an actual sea monster? Detective Matsui of the Metropolitan Tokyo Police Department asks Captain Gotoh for help. Shige and Sakaki help pilot a remote control Labor, to search for what caused the incidents.
待ってましたの怪獣退治!東京湾に謎の巨大生物出現。マッドサイエンティスト、平田博士が生み出したモンスターがレイバーに迫る!レイバー隊VSモンスター、決戦の時は近い!!