| 0 | - | cover | 1 | pencils: Keith Giffen; inks: Larry Mahlstedt | Gim Allon, Imra Ardeen, Colossal Boy, Cosmic Boy, Salu Digby, Rokk Krinn, Lightning Lad, Garth Ranzz, Saturn Girl, Shrinking Violet |
| 1 | Adventure Comics No. 500 | table of contents | 1 | letters: typeset | |
| 2 | The Secret of the Mystery Legionnaire! | comic story | 12 | script: Jerry Siegel; pencils: John Forte; inks: John Forte; letters: Joe Letterese; editing: Mort Weisinger | Gim Allon, Antennae Boy First, Imra Ardeen, Khfeurb Chee Bez First, Bouncing Boy, Brainiac 5, Colossal Boy, Cosmic Boy, Salu Digby, Querl Dox, The Dynamo Kid First, Lar Gand, Invisible Kid, Clark Kent |
| 3 | The Legion of Substitute Heroes! | comic story | 14 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Joe Letterese; editing: Mort Weisinger | Gim Allon, Imra Ardeen, Brek Bannin, Ral Benem, Bouncing Boy, Brainiac 5, Chameleon Boy, Chlorophyll Kid, Colossal Boy, Cosmic Boy, Reep Daggle, Salu Digby, Querl Dox, Fire Lad |
| 4 | The Secret Power of the Mystery Super-Hero! | comic story | 13 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Joe Letterese; editing: Mort Weisinger | Gim Allon, Imra Ardeen, Jan Arrah, Bouncing Boy, Brainiac 5, Colossal Boy, Cosmic Boy, Querl Dox, Element Lad, Invisible Kid, Rokk Krinn, Dirk Morgna, Lyle Norg, Roxxas First |
| 5 | The Return of Lightning Lad! | comic story | 11 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Joe Letterese; editing: Mort Weisinger | Imra Ardeen, Bouncing Boy, Brainiac 5, Chameleon Boy, Cosmic Boy, Reep Daggle, Salu Digby, Querl Dox, Luornu Durgo, Kara Zor-El, Lar Gand, Clark Kent, Rokk Krinn, Lightning Lad |
| 6 | [Part I] The Legion of Super-Monsters! | comic story | 9 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Milton Snapinn; editing: Mort Weisinger | Dori Aandraison First, Gim Allon, Imra Ardeen, Bouncing Boy, Brainiac 5, Chameleon Boy, Colossal Boy, Reep Daggle, Querl Dox, Lar Gand, Jungle King / Monster Master First, Mon-El, Dirk Morgna, Jo Nah |
| 7 | Part II: The Legion's Super-Showdown! | comic story | 8 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Milton Snapinn; editing: Mort Weisinger | Imra Ardeen, Bouncing Boy, Brainiac 5, Chameleon Boy, Reep Daggle, Querl Dox, Jungle King / Monster Master First, Dirk Morgna, Saturn Girl, Sun Boy, Chuck Taine |
| 8 | [Part I] The Doom of the Super-Heroes! | comic story | 9 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Milton Snapinn; editing: Mort Weisinger | Imra Ardeen, Bouncing Boy, Brainiac 5, Chameleon Boy, Cosmic Boy, Reep Daggle, Salu Digby, Querl Dox, Lar Gand, Invisible Kid, Clark Kent, Rokk Krinn, Lightning Lass, Mask Man |
| 9 | Part II: Last Stand of the Legion! | comic story | 8 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Milton Snapinn; editing: Mort Weisinger | Gim Allon, Imra Ardeen, Bouncing Boy, Brainiac 5, Colossal Boy, Cosmic Boy, Querl Dox, Lar Gand, Invisible Kid, Clark Kent, Rokk Krinn, Lightning Lass, Mask Man, Mon-El |
| 10 | [Part I] The War Between the Substitute Heroes and the Legionnaires! | comic story | 8 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Joe Letterese, Milton Snapinn; editing: Mort Weisinger | Imra Ardeen, Brek Bannin, Ral Benem, Bouncing Boy, Brainiac 5, Chlorophyll Kid, Cosmic Boy, Querl Dox, Fire Lad, Lydda Jath, Rokk Krinn, Staq Mavlen, Dirk Morgna, Night Girl |
| 11 | Part II: The Duel of the Legions! | comic story | 9 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Joe Letterese, Milton Snapinn; editing: Mort Weisinger | Imra Ardeen, Brek Bannin, Ral Benem, Bouncing Boy, Chameleon Boy, Chlorophyll Kid, Cosmic Boy, Reep Daggle, Fire Lad, Lydda Jath, Rokk Krinn, Staq Mavlen, Dirk Morgna, Night Girl |
| 12 | Part I: The Super-Sacrifice of the Legionnaires! | comic story | 8 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Milton Snapinn; editing: Mort Weisinger | Imra Ardeen, Chameleon Boy, Reep Daggle, Lar Gand, Clark Kent, Lightning Lad, Lightning Lass, Mon-El, Dirk Morgna, Proty, Ayla Ranzz, Garth Ranzz, Saturn Girl, Sun Boy |
| 13 | Part II: The Bravest Legionnaire! | comic story | 7 | script: Edmond Hamilton; pencils: John Forte; inks: John Forte; letters: Milton Snapinn; editing: Mort Weisinger | Imra Ardeen, Chameleon Boy, Reep Daggle, Lar Gand, Clark Kent, Lightning Lad, Lightning Lass, Mon-El, Dirk Morgna, Proty Death, Ayla Ranzz, Garth Ranzz, Saturn Girl, Sun Boy |
| 14 | The World of Doomed Olsens! | comic story | 9 | script: Jerry Siegel; pencils: Curt Swan; inks: George Klein; editing: Mort Weisinger | Gim Allon, Imra Ardeen, Brek Bannin, Bouncing Boy, Chameleon Boy, Colossal Boy, Cosmic Boy, Reep Daggle, Salu Digby, Luornu Durgo, Fire Lad, Lar Gand, Lydda Jath, Clark Kent |
| 15 | Part I: The Condemned Legionnaires! | comic story | 8 | script: Edmond Hamilton; pencils: Curt Swan; inks: George Klein; letters: Milton Snapinn; editing: Mort Weisinger | Gim Allon, Imra Ardeen, Brek Bannin, Bouncing Boy, Brainiac 5, Chameleon Boy, Colossal Boy, Cosmic Boy, Reep Daggle, Salu Digby, Querl Dox, Luornu Durgo, Kara Zor-El, Lar Gand |
| 16 | Part II: The Secret of Satan Girl! | comic story | 8 | script: Edmond Hamilton; pencils: Curt Swan; inks: Sheldon Moldoff; letters: Milton Snapinn; editing: Mort Weisinger | Gim Allon, Imra Ardeen, Beppo, Biron, Bouncing Boy, Colossal Boy, Comet, Cosmic Boy, Salu Digby, Luornu Durgo, Kara Zor-El, Lydda Jath, Rokk Krinn, Krypto |
| 17 | The First Five Hundred Issues | text article | 3 | script: E. Nelson Bridwell; pencils: Curt Swan, Mike Sekowsky, Bob Oksner, Jim Aparo, Kurt Schaffenberger; inks: George Klein, Dick Giordano, Murphy Anderson, Bob Oksner, Jim Aparo, Kurt Schaffenberger; letters: Ira Schnapp | |
| 18 | The Story Behind the Stories | text article | 1 | script: Paul Levitz | |
| 19 | 10 Legion of Super-Heroes Stories! | illustration | 1 | pencils: Keith Giffen; inks: Larry Mahlstedt | Gim Allon, Imra Ardeen, Colossal Boy, Cosmic Boy, Salu Digby, Rokk Krinn, Lightning Lad, Garth Ranzz, Saturn Girl, Shrinking Violet |