هنرمند آرشیو جوآن تیلور

The first spaceship to visit Venus crash lands in the sea, freeing a small native Venusian creature called the Ymir. Eventually growing to enormous size, it threatens the city of Rome.

A government agent is sent to a western town to investigate attacks that the townspeople say are being commited by rampaging Apaches. The agent, however, suspects that different forces may be committing these crimes.