- Power Girl (First appearance)
Doctor Mid-Nite receives information on the JSA computer alerting the team to various geological emergencies taking place across the globe. If these disasters are not stopped, all life on Earth will be destroyed. The Justice Society splits into teams of two and responds to each emergency. Hawkman and Doctor Mid-Nite investigate an Earthquake in Seattle. They find the young hero the Star-Spangled Kid active on the scene and decide to hold back to see how well the Kid does on his own. Hawkman decides that if things grow beyond his control, then they will intervene on his behalf.
Green Lantern and Doctor Fate investigate a similar disaster taking place in Capetown, South Africa. While there, they encounter Richard Grayson who has been corresponding with government officials on behalf of the United Nations. Seeing that Fate and Green Lantern are having difficulty resolving the nearby geological crisis, Richard changes into his Robin costume and lends a hand.
Meanwhile, the Flash and Wildcat race to Peking, China in response to an active volcano. At super-speed, the Flash burrows a ditch around the perimeter of the volcano to contain the flowing lava, but it is not enough. Both heroes are shocked when a super-powered young woman flies down out of the sky and caps the top of the volcano. She introduces herself as Power Girl and that she is Superman’s Kryptonian cousin.
Elsewhere, the true architect behind these environmental disasters reveals himself – Brain Wave.