Showcase Presents: Legion of Super-Heroes — DC Comics
Issue: #4
In this volume, the Legion battles Mordru the Merciless and The Fatal Five and meets The Tornado Twins. Collecting ADVENTURE COMICS #369-380, ACTION COMICS #378-387, 389-392 and SUPERBOY #172, 173, 176, 183, 184, 188, 190 and 191.
Creators: Jim Shooter, Cary Bates, Curt Swan, Dave Cockrum, Mike Esposito, E. Nelson Bridwell
Characters: Superman, Supergirl, Supergirl, Chameleon Boy, Brainiac, Dawn Allen, Tharok, Emerald Empress, Mano, Mordru, Validus, Don Allen, Persuader