This story takes place after Clark and Booster's journey in Action Comics. Turns out Clark has rigged the fortress to scan for planets that face the same fate as Krypton, and he picks up one such signal on the anniversary of his planet's destruction. Jon wants to come and after some badgering, Clark agrees, but only on the condition they don't tell Lois.

Clark and Jon arrive at the planet but the inhabitants believe they are fated to die by their gods and will not evacuate. Turns out their planet can sap people of their powers and strength, so Supes and Jon face a struggle until they are rescued by one member of the aliens that does not share their deluded notions.

Jon looked mondo feminine here, and the story reminded me a great deal of a recent Green Lanterns issue