When the support lines connecting a newly constructed undersea base to the surface world are mysteriously destroyed, the Science Patrol launches a rescue mission. Upon their arrival, they come face to face with the culprit: a furious amphibious monster with a drill-like beak.
“深海怪獣グビラ登場”
海底センターに閉じ込められたムラマツキャップたち４人。彼らは海底から脱出することができるのか!?
