Superman’s old enemy Grax plants 12 bombs on Earth. Starring Aquaman, Batman, Robin, Superman, Wonder Woman, Wendy, Marvin, Wonder Dog, the Wonder Twins and Gleek (making their first comic book appearance), Hawkman, the Flash, and Green Arrow.
Jerry Ordway, Dennis O'Neil, Elliot S! Maggin, E. Nelson Bridwell, C.C. Beck, Bob Oksner, Dave Cockrum, Kurt Schaffenberger, Dick Giordano & Pat Broderick