The Justice League of America teams up with their heroic predecesors, The Justice Society of America, in this new collection featuringand three adventures that have never been reprinted before. First, the two teams face the threat of Gorilla Grodd and the Secretand Society of Super-Villains. Then, the JLA and JSA battle alongside the All-Star Squadron against the Crime Syndicate. In the thirdand epic in this book, the teams take on the Crime Champions of Earth-1.