Satan makes the mistake of trying to sabotage Camp Porter in his mad campaign to undermine the U.S. program to defend democracy.; Jack comes upon the scene of an aged man burying someone, and discovers that he is Dr. Morgan, a scientist who invented the space cruiser and flew to Mars in 1901. Slipping Dawson a drink, the young man passes out and is taken to the heaviside layer by the scientist, where astro-pyro rays advanced the young man's evolutionary stage a few pegs. He returns to Earth to battle criminals who are looting cities and murdering residents.; Gary is attending West Point, but his family tradition of serving in the military spurs him on to action before he graduates, and what better way than taking on Luftwaffe Captain Hoch, whose "Khaki Shirts" are planning to dynamite West Point.; Dr. Salle and his companions discover a long lost tomb that contains the remains of General Amron, who was put into a hypnotic sleep by his father some 6000 years before. However, a notorious bandit named Norton kills all the explorers, reads Salle's notes, then revives the mummy using a Star Sirius, a pebble and the eyes of the mummy. Rising from his long sleep, the mummy, heeding the words of his father, becomes the Phantom Sphinx, and avenges the wrongs that have been done.; Traveling to Belgrade, Yugoslavia, on his first assignment, in the disguise of an American reporter, Agent 99 saves a young girl from the Nazis, and tells her that he is there in Yugoslavia to protect her from Gestapo agents.; Sentenced to death for murder because of the actions of politicians protecting the real culprit, John Doyle escapes from prison to track down the murderer, and discovers that his girl friend has been kidnapped by criminals who believe she knows more about the actual murderer than she should.