Tom Mura meets Silvar for the first time, and learns that this family of giants from outer space is on Earth to help defeat Rodak, whom they have been following for quite some time. Gam and Mikko decide on their own that they will attack Rodak’s spaceship. They are captured and confined in a transparent cage. Rodak attempts to gain their confidence and tells them that on his ship, children only play all day long. Rodak shows them many children playing all kinds of games, apparently happy. Mikko is somewhat taken in, but Gam knows that Rodak is not telling the truth! Gam rebels, and Rodak places him on a platform for examination of his electronic parts. Birdaurus attacks an atomic power plant and begins to destroy it. Goldar arrives to stop the creature.