Ace of Space: 1944: Prelude to a Storm
by Drivtaan, partially adapted from the Ace of Space story in Feature Comics #38 by H. Weston Taylor and Harry Campbell 
After Ace Egan encounters an alien who gives him an opportunity to be a hero, he uses a powerful belt to become the nine-foot-tall Ace of Space. But when Ace takes a mission as a special agent of the U.S. Army Air Corps behind enemy lines, has the giant hero finally met his match? And what horrors might be unleashed when the secret of his mighty powers falls into the hands of the Nazis?