The JLA and JSA, alongside the Legion of Super-Heroes, are captured by Mordru in the 30th century and forced to do his task: reclaim the three items lost after the JLA satellite was destroyed in the late 20th century.
More by Gardner Fox, Paul Levitz, Martin Pasko, E. Nelson Bridwell, Mike Sekowsky & Dick Dillin
Michael Uslan, Bill Finger, David Vern Reed, Dave Wood, France Herron, Gardner Fox, John Broome, Bob Kane, Dick Sprang, Sheldon Moldoff & Carmine Infantino