The Invaders #4

Captain America, The Human Torch, and Toro race to commandeer a plane to catch up with Namor and Bucky, who made off with their Atlantean aircraft. Meanwhile, Namor explains to Bucky that U-Man was originally a research scientist Meranno, whom he exiled for making overtures to the Nazis. He realizes that Meranno used his mad science to gain powers similar to his own and is now fully allied with Hitler.