A scientist moves into Dr. Frankenstein's castle to set up his experimental growth ray. When he trains it upon an amoeba, the frightened villagers burst in, and seeing the equipment, think he is going to bring ruin down upon them and hustle him off to the town jail. With no one to shut off the growth machine, the amoeba grows to huge size and smashes out of the castle to menace the village. The scientist escapes his jail cell and uses his lab coat soaked with sugar to lure Sporr into a quicksand pit.
A Hollywood monster movie producer is witness to the arrival of Dragoom, a convict from the planet Vulcan, on Earth. He wishes to be ruler of Earth and surrounds the planet with a band of fire which he slowly constricts until the authorities give in to his demand. The producer gets him to flee by constructing dummies that appear to be police from his homeworld.
Appearing in "Taboo! The Thing from the Murky Swamp!"
An explorer meets a mud creature in a swamp who claims that his spaceship was destroyed years ago and wishes that the man request from those in charge the sum total of human knowledge. When this is presented to Taboo, he reveals his hostile intention to take the knowledge back to his world and prepare an invasion of Earth as he can travel through space without requiring a spaceship. The explorer is remorseful in the role he has played as Taboo's dupe, but his comrades tell him to watch the atmosphere that Taboo has faded into. Suddenly there is a huge explosion, and they reveal to the explorer that they had secreted an H-bomb in the capsule, just in case.
