In their holding cell on Arrow, Perkins and Hoffman encounter a fellow prisoner: one of the aliens, who introduces himself as Polcor, a Galactic Weapon Master. In addition, the cell is telepathically empowered and begins to pull the information about Earth from their minds when Professor Common rescues them. After the two have reported, Colonel Jason realizes the value of Polcor as a source of information and sends them back - along with Ralph - to retrieve him from the cell and question him on an uninhabited planet. But Polcor's identity turns out to be a ruse: He is in fact the ruler of the Galactic Weapon Masters on Arrow, and he had developed a horrible weapon - a Sun Annihilator - for a greater cosmic power, the Middle Eye, which had, of course, been refused. In order to make up for the disgrace, Polcor tries to blame mankind for the existence of the weapon. What is worse is that the Sun Annihilator is actually the device Professor Common had accidentally snatched with the Dimension Transmitter.