Lex Luthor of Earth-1 and Alexei Luthor of Earth-2 swap Earths, hoping to defeat the other Superman using the element of surprise. When that fails, they travel to Earth-3 to recruit the aid of Ultraman. Lois Lane of Earth-3 figures out their plot and convinces Alexander Luthor to become Earth-3's first super hero. Alex calls upon the Supermen of Earths-1 and 2 to help foil the Luthors' scheme.
"Earths Beyond Earths" 1 page text by Rich Morrissey.