| Issue | #21 |
| Published | August 1981 |
| Cover Price | 0.50 USD |
| Pages | 36 |
| Editing | Al Milgrom; Jim Shooter (editor-in-chief) |
| Notes | Cover colorist credit provided 2007 by Al Milgrom. |
| Characters | Rom; Torpedo |
| Genre | superhero; science fiction |
| Pencils | Al Milgrom (signed) |
| Inks | Al Milgrom (signed) |
| Colors | George Roussos |
| Letters | typeset; ? |
| Notes | Cover colorist credit provided 2007 by Al Milgrom. |
| Characters | Rom; Torpedo |
| Genre | superhero; science fiction |
| Script | Bill Mantlo (plot and script); Sal Buscema (plot) |
| Pencils | Sal Buscema (breakdowns), Joe Sinnott (finishes) |
| Inks | Joe Sinnott |
| Colors | Bob Sharen |
| Letters | Jim Novak |
| Notes | The Torpedo joins the cast. Dedicated to Marv Wolfman, creator of the Torpedo. |
| Characters | the Spaceknights |
| Genre | superhero; science fiction |
| Script | Bill Mantlo (plot and script); Sal Buscema (plot) |
| Pencils | Sal Buscema (breakdowns); Joe Sinnott (finishes) |
| Inks | Joe Sinnott |
| Colors | Bob Sharen |
| Letters | Jim Novak |