| Issue | #40 |
| Published | June 1961 |
| Pages | 36 |
| Notes | Information on this issue from Lou Mougin. |
| Characters | Captain Atom [Captain Allen Adam] |
| Genre | Superhero |
| Pencils | Steve Ditko |
| Inks | Steve Ditko |
| Notes | Information on this issue from Lou Mougin. |
| Reprinted | in Action Heroes Archives (DC, 2004 series) #1 |
| Characters | Captain Atom [Captain Allen Adam]; Mr. Haynes; Malnov; Odeva |
| Synopsis | Captain Atom helps get Mr. Haynes to the peace confererance and also removes all the threats of the enemy missiles. |
| Genre | Superhero |
| Pencils | Steve Ditko |
| Inks | Steve Ditko |
| Reprinted | in Space Adventures (Charlton, 1978 series) #9; in Action Heroes Archives (DC, 2004 series) #1 (2004) |
| Pencils | Rocco Mastroserio |
| Inks | Rocco Mastroserio |
| Pencils | Bill Molno |
| Inks | Vince Alascia |
| Characters | Captain Atom [Captain Allen Adam]; M/Sgt Willkie Scott |
| Synopsis | Captain Atom cures M/Sgt. Willkie Scott's son who was dying from gamma ray radiation. |
| Genre | Superhero |
| Pencils | Steve Ditko |
| Inks | Steve Ditko |
| Reprinted | in Strange Suspense Stories (Charlton, 1955 series) #77; in Space Adventures (Charlton, 1978 series) #12; in Action Heroes Archives (DC, 2004 series) #1 (2004) |