Batman appears on The Big Quiz program to verify the answers given by super-contestants Frank Davis, who stands to win $125,000 from correct responses to questions about Batman's career. Emcee Joe Harmon feeds Davis some tough Batman questions, but the contestant answers them all correctly. Finally, Harmon places Davis in an isolation booth with a notepad and asks him the question, "What is Batman's Secret Identity?" Though Batman blocks off the camera's view, he is able to see that Davis has written, "Batman is Bruce Wayne"--only seconds before he collapses in the booth, and dies of poisoning. Robin notes that the notepad which Davis wrote Batman's identity on is blank, and believes someone has stolen the page with his real name. Suspicion is thrown upon Garth, a convict brought under gua