| Issue | #1 |
| Published | 1975 |
| Cover Price | 0.50 USD |
| Pages | 68 |
| Editing | Len Wein |
| Notes | Cover inker credit provided by Nick Caputo 3/28/07 |
| Genre | superhero |
| Pencils | Gil Kane |
| Inks | Joe Sinnott |
| Notes | Cover inker credit provided by Nick Caputo 3/28/07 |
| Characters | FEATURE: Thor; GUESTS: Odin; Balder; Heimdall; Warriors Three--Hogun; Fandral; Volstagg; VILLAINS: Loki; Destroyer; Brok; Tyr; Galp; Drom; CAMEO: Absorbing Man |
| Synopsis | Loki breaks up an Asgardian contest called by Odin by sending the Destroyer to wreak havoc. |
| Genre | superhero; fantasy |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | Vince Colletta |
| Letters | Sam Rosen |
| Reprinted | from Thor Annual (Marvel, 1966 series) #2 (September 1966) |
| Characters | FEATURE: Thor; GUESTS: Loki; Hercules (I); Zeus (I); VILLAINS: Storm Giants |
| Synopsis | Thor and Loki come across a pair of storm giants attacking the gateway from Asgard to Olympus; During the ensuing battle, Thor is accidentally transported to the fabled land and finds himself in combat with the mighty Hercules with neither party willing to back down; After a titanic battle, Zeus stops the conflict and proclaims them both worthy allies and friends; Thor is sent back to Asgard and Zeus closes the passage forever. |
| Genre | Superhero |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | Vince Colletta |
| Letters | Sam Rosen |
| Editing | Stan Lee (Original Editor) |
| Notes | First appearance of Hercules and Zeus. |
| Reprinted | from Journey into Mystery Annual (Marvel, 1965 series) #1 (1965) |
| Characters | Heimdall; King Brimer; Queen Nedra (I); Odin; a Vanna (an air-sprite) (I) |
| Synopsis | Story of how an Air Spirit snuck past Heimdall. |
| Genre | Superhero; Fantasy |
| Script | Stan Lee |
| Pencils | Jack Kirby |
| Inks | George Roussos [as George Bell] |
| Letters | Artie Simek |
| Editing | Stan Lee (Original Editor) |
| Notes | Second in the Heimdall Biography series, first appearances of Queen Nedra and a Vanna (an air-sprite). |
| Reprinted | from Journey Into Mystery (Marvel, 1952 series) #105 (June 1964) |