| 0 | - | cover | 1 | pencils: Jack Kirby; inks: Vince Colletta; colors: Paul Mounts | Thor; Balder; Sif; Warriors Three [Hogun; Fandral; Volstagg]; Recorder |
| 1 | ...To Wake the Mangog! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Artie Simek | Thor; Loki; Sif; Hela; Harokin; Ulik; Mangog (introduction); Don Blake; Toag, Elder of the Council Supreme (introduction); Odin; Muggers, Inc. (introduction); Balder; Karnilla; The Legion of the Lost (introduction) |
| 2 | Now Ends the Universe! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Artie Simek | Thor; Sif; Karnilla; Odin; Toag; Balder; Legion of the Lost; Mangog; Loki; Warriors Three [Hogun; Fandral; Volstagg]; Ego; Recorder |
| 3 | The Hammer and the Holocaust! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Mangog; Warriors Three [Hogun; Fandral; Volstagg]; Loki; Toag; Heimdall; Recorder; Karnilla; Balder; The Legion of the Lost; Odin; Sif |
| 4 | Behind Him...Ragnarok! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Mangog; Warriors Three [Hogun; Fandral; Volstagg]; Balder; Karnilla; The Legion of the Lost; Guntharr (introduction); Loki; Toag; Recorder; Odin; Sif |
| 5 | The Way It Was! | comic story | 7 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Don Blake; Heimdall (flashback); Odin (flashback); Jane Foster (flashback); Sif (flashback); Karnilla (flashback); Loki (flashback); Balder (flashback); Warriors Three [Hogun; Fandral; Volstagg] (flashback); Hercules (flashback); Pluto (flashback); Ulik (flashback); Toag (flashback); Cobra (fl |
| 6 | The Answer At Last! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Don Blake (origin); Heimdall; Odin; Storm Giants of Niffelheim (flashback); Balder (flashback); Warriors Three [Hogun; Fandral; Volstagg] (flashback); Gondolff (introduction) (flashback) |
| 7 | And Now... Galactus! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Tana Nile; Recorder; Odin; Sif; Galactus; Ego; Wanderers |
| 8 | Shall a God Prevail? | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Recorder; Galactus; Ego; Wanderers |
| 9 | Galactus is Born! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Recorder; High Commissioner of Rigel; Tana Nile; Heimdall; Warriors Three [Hogun; Fandral; Volstagg]; Odin; Torger (Cosmic Counselor of Asgard); Galactus (origin); Balder; Karnilla |
| 10 | Where Dwell the Demons! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Sif; Odin; Pluto; Mutates; The Keeper of the Antiquities of Asgard; Adam Warlock (named later, currently in cocoon) |
| 11 | Lest Mankind Fall! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Sif; Pluto; Mutates; Balder; Karnilla; Odin; Zeus; Athena; Adam Warlock (not named, still in cocoon) |
| 12 | Him! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Artie Simek | Thor; Sif; Balder; Him [Adam Warlock]; Odin; The Watcher; The Astrologer Royal of Asgard; Karnilla; Haag |
| 13 | A God Berserk! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Sam Rosen | Thor; Sif; Him [Adam Warlock]; Balder; Odin; The Astrologer Royal of Asgard; Karnilla; Haag |
| 14 | This World Renounced! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Vince Colletta; letters: Artie Simek | Thor; Odin; Balder; Sif; Heimdall; Karnilla; Loki; Haag; Don Blake; Galactus |
| 15 | Galactus Found! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: George Klein; letters: Artie Simek | Thor; Odin; Galactus (partial origin); Balder; Warriors Three [Hogun; Fandral; Volstagg]; Thermal Man (Introduction); Watcher |
| 16 | The Awesome Answer! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: George Klein; letters: Artie Simek | Thor; Galactus (Origin); Watcher; Odin; Balder; Warriors Three [Hogun; Fandral; Volstagg]; Thermal Man |
| 17 | The Thunder God and the Thermal Man! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Bill Everett; letters: Artie Simek | Thor; Thermal Man; Balder; Warriors Three [Hogun; Fandral; Volstagg]; Karnilla; Loki |
| 18 | The Wrath of the Wrecker! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Bill Everett; letters: Sam Rosen | Thor; The Wrecker; Pedro Luis Lopez (Introduction) |
| 19 | The Immortal and the Mind-Slave! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Bill Everett; colors: Bill Everett; letters: Artie Simek | Thor; Dr. Jim North (Introduction); Don Blake; Odin; Loki; Balder; Karnilla; Kronin Krask (Introduction, Death); Brunhilda |
| 20 | Ulik Unleashed! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Bill Everett; colors: Bill Everett; letters: Artie Simek | Thor; Don Blake; Fake Thor [Mike] (Introduction); Loki; Ulik; Ringmaster and His Circus of Crime [Ringmaster [Maynard Tiboldt]; Princess Python; Clown; Luigi Gambonno; Ernesto Gambonno; Cannonball] |
| 21 | The Carnage of the Crypto Man! | comic story | 20 | script: Stan Lee; pencils: Jack Kirby; inks: Bill Everett; colors: Bill Everett; letters: Sam Rosen | Thor; Jasper Whyte (Introduction, Death); Crypto-Man (Introduction) |