On the planet Thanagar, Hawkman and Hawkgirl report to their chief, Andar Pul, about the progress they're making learning Earth police methods. They relate to one of their recent adventures on Earth, where a priceless black pearl necklace was stolen from the Midway Museum. Taking on their guises of Hawkman and Hawkgirl, they decide to put on a friendly competition between each other: Hawkman will try to solve the crime using only Earth police methods, while Hawkgirl only uses Thanagarian police methods. At first, Hawkgirl has the upper hand using Thanagarian crime fighting devices that give her an initial leg up, however Earth's environment proves too unstable for the sensitive machines which are constantly malfunctioning due to Earth's changing weather patterns. Hawkman, meanwhile uses a