History: (Challengers of the Unknown I #12) - The Cosmic Giants were outlaws who were collecting rare metals to build a destructive device to use against their own people, and they chose Krandan as the location to land and assemble their device. Krandan's champion S’ntaga forced them offplanet, and they fled to Earth, with S’ntaga in hot pursuit. The Challengers of the Unknown witnessed the Giants' landing, and the Giants attacked them with their rayguns, severely injuring Prof. Haley. S’ntaga arrived on Earth, and after placing Prof. in a healing chamber explained that the Giants plan. The Cosmic Giants attacked a nearby town, but with S’ntaga's help the Challs fended them off. The Giants used their distraction to complete their weapon, and had their ship shielded with a cosmic forcefield. Prof. recovered, and the healing process gave him temporary superhuman strength. He broke through the cosmic barrier, forcing the Giants to flee, and S’ntaga used the opportunity to plant an explosive on the Giant's ship, blowing them up.

Comments: Created by Ed Herron & Bob Brown.