A government agent infiltrates a secret organization known as the "Invisibles" who attach parasites to the spinal chords of their victims. And, in doing so, they hope to take over the world!
Aliens from the planet Zanti send their criminals to Earth and insist that they be kept in an isolated area outside of all human contact. However, the situation becomes complicated by the intrusion of outsiders.moreless
Radio station engineer Allan Maxwell establishes contact with an alien being. But when the station's power is turned up, the alien is teleported to Earth, where its radioactive nature causes havoc.