Anticipating nuclear war that would leave Earth barren of life, Lars Kranston convinces his colleagues to go to Mars. His paramour Betty Stone insists that she go as well. The ship crashes on Mars. Everyone but Lars and Betty are killed, but Lars thinks she died too. Betty wakes up suffering total amnesia. Lars decides to use the supplies that survived the wreck. He manages a complete sex change. The tumultuous situation on Earth dies down. The predicted war never occurs. Betty remembers the journey. She runs Lars, who explains his sex change to a woman. Betty breaks down at the revelation.; The Earth-Moon space station is a city floating between the Earth and the Moon. The city is constructed on an artificial wheel. Dr. Tero and Dr. Orso create two synthetic children. One is named Nors, the other Gri. Lars works on a fuel for spaceships. Both plan to win a contest for amazing feats. Gri steals some of the fuel and goes to Saturn. He captures an alien creature on the planet and returns with it. In a competitive mood, Nors takes out a craft Gri is not aware of. Nors takes the craft and begins using it to destroy and rebuild structures in the city. The contest is a tie.; In the summer of 1953, Edmund Cranston presents his designs for a rocketship to Dr. Corning at a large aircraft corporation. Cranston's only request is to be on the spacecraft maiden voyage to the moon. The ship is completed and crewed by Cranston and Doctor Corning, Ellis, and Major Learner. Once in space, Cranston reveals he is Gord of Mars. He had the craft built to return to Mars after his ship crashed. The men are never heard from again on the Earth, and a dad tells his son that spaceships "wouldn't work". No further development in space travel is pursued following the incident.; Commander Krait's crew begins receiving transmissions from an inhabitable planet called X-3-Z. Dr. Triple interprets the message. The message states society living there faces immanent destruction through war. Krait sends ships to stop the senseless destruction. Captain Jer leads a fleet to try to stop the war, but to no avail. The last panel reveals X-3-Z was called Earth by its erstwhile inhabitants.; When a professor perfects an elixir to transmute all it touches into gold, Kryn uses a "paralyzo ray" to freeze the professor. Kryn takes the potion for his own purposes. He puts some on his hand and turns the wall to gold. It also turns his arm and hand to gold. It continues to turn him into gold. This causes him to clumsily knock a burning hydrogen torch off a table. Its heat melts the gold-man into a golden glob of goo.; A Saturnian creature attempts an invasion of Earth. He takes pills to make him diminutive to avoid detection. Before he can return to his normal size, he is attacked and killed by a spider.