| 0 | The Voyage to Dimension X! | cover | 1 | pencils: Curt Swan; inks: Stan Kaye | Superman [Clark Kent]; general; spectators; false alien |
| 2 | Voyage to Dimension X! | comic story | 12.67 | script: Otto Binder; pencils: Al Plastino; inks: Al Plastino | Superman [Clark Kent]; Lois Lane; Lex Luthor (villain); Luthor Robot; Supergirl [Kara Zor-El] (Cameo); Krypto (Cameo); Gypo (Luthor's henchman) |
| 3 | Supermen of America | promo (ad from the publisher) | 0.33 | letters: typeset | |
| 4 | - | letters page | 1 | script: Mort Weisinger; pencils: Wayne Boring; inks: Wayne Boring | |
| 5 | - | promo (ad from the publisher) | 1 | pencils: Curt Swan; inks: Stan Kaye | Superman; Titano; the Thing from 40,000 A.D.; Metallo [John Corbin]; Brainiac; Bizarro (original); the Invulnerable Enemy |
| 6 | Children of Tomorrow! | public service announcement | 1 | script: Jack Schiff; pencils: Bernard Baily; inks: Bernard Baily; letters: Ira Schnapp | Asian children; African parents; sick African child; children; teachers |
| 7 | - | comic story | 0.67 | script: Henry Boltinoff; pencils: Henry Boltinoff; inks: Henry Boltinoff; letters: Henry Boltinoff | Ollie |
| 8 | Coming Super-Attractions! | promo (ad from the publisher) | 0.33 | | Lois Lane; the flame-dragon from Krypton |
| 9 | Supergirl's Fortress of Solitude! | comic story | 13 | script: Jerry Siegel; pencils: Jim Mooney; inks: Jim Mooney | Superman; Supergirl; Streaky; Jerro (statue); Lori Lemaris (statue); Ronal (statue); Professor Damon Brant (villain); Mrs. Brant (villain); Mrs. Hart |
| 10 | Cave Carson Adventures Inside Earth | promo (ad from the publisher) | 1 | pencils: Bruno Premiani; inks: Bruno Premiani | Cave Carson; Bulldozer; Christie; lava creature |