A narrow escape has Nita worse for the wear, but on the run in a stolen car. Will the Leopard Woman, and her henchman, Brauer, evade police roadblocks, and meet up with their submarine?
Meanwhile, back in the Daily Planet, Clark talks with Perry White and major Campbell about the cunning resourcefulness of their foe. Where oh where could she be? Clark is beginning to figure out the most likely place the sub might be.
Doing their own spying on radio signals, Campbell is left behind when Clark takes to the sky as Superman. Will Nita even know what hit her in her final escape attempt? Clark explains the action as he reports back in at the Daily Planet, and a mysterious phone message from Jimmy Olsen signals the beginning of a new adventure.