
The Science Patrol battles giant monsters and sinister aliens that threaten Earth.

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 bent on enslaving the Earth's surface.

The International Peace Conference building is attacked by invisible rockets, sparking a Science Patrol investigation.

Gubila damages the pipeline, causing the dock to flood.