Science Patrol member Ide is convinced that a female agent dispatched from headquarters in Paris isn't who she appears to be. His suspicions prove correct when she reveals herself to be a member of a race of subterranean humanoids bend on enslaving the Earth's surface.
“地底怪獣テレスドン登場”
地上征服を狙った地底人たちが送り込んだテレスドンが夜の町で大暴れする。
Una presunta agente della sezione parigina della Pattuglia Scientifica si rivela un'impostora. Hayata viene fatto prigioniero sottoterra proprio mentre il mostro Telesdon emerge e devasta la città.
