| Issue | #263 |
| Published | June-July 1980 |
| Cover Price | 1.00 |
| Pages | 68 |
| Editing | Jack Harris |
| Characters | Superman; Batman; Superman, Jr.; Batman, Jr.; Adam Strange; Green Arrow; Aquaman; Captain Marvel [Billy Batson]; Captain Marvel, Jr. |
| Genre | superhero |
| Pencils | Ross Andru |
| Inks | Dick Giordano |
| Reprinted | in Superman / Batman: Saga of the Super Sons (DC, 2007 series) #nn |
| Characters | Superman; Batman; Superman, Jr.; Batman, Jr.; Dr. Sivana; Lois Lane; Jimmy Olsen |
| Synopsis | The super-sons' adventures are revealed to be computer simulations observed by Superman and Batman. But when Superman leaves the program running, Superman, Jr. figures out that there is another plane of existence, and the boys enter the real world. There, their presence causes natural disasters, so they sacrifice their artifical lives. |
| Genre | superhero |
| Script | Dennis O'Neil |
| Pencils | Rich Buckler |
| Inks | Dick Giordano |
| Colors | Jerry Serpe |
| Letters | Ben Oda |
| Notes | That the Super-Sons were actually computer simulations was previously mentioned in Superman Family, The (DC, 1974 series) #192. |
| Reprinted | in Superman / Batman: Saga of the Super Sons (DC, 2007 series) #nn |
| Characters | Green Arrow; Black Canary; George Taylor; Matthew L. Durkin; Rooftop Robinson; Ricky Sanchez; Lt. Mack Morgan |
| Genre | superhero |
| Script | Bob Haney |
| Pencils | Trevor von Eeden |
| Inks | Armando Gil |
| Colors | Jerry Serpe |
| Letters | Ben Oda |
| Characters | Vs Kaskor and the Kirri, Hawkman. Adam Strange (origin); Alanna; Sardath |
| Genre | science fiction |
| Script | Jack C. Harris |
| Pencils | Jim Sherman |
| Inks | Steve Mitchell |
| Colors | Anthony Tollin |
| Letters | Mike Stevens |
| Notes | a follow-on to Showcase 101-103 with Hawkman. This segues into the Hawkman strip next issue. |
| Characters | Origin recap. Aquaman (origin); Topo; Major Lyndon; Tom Haskel |
| Genre | superhero |
| Script | Bob Rozakis |
| Pencils | Jose Delbo |
| Inks | Frank Chiaramonte |
| Colors | Adrienne Roy |
| Letters | Gaspar Saladino |
| Characters | Captain Marvel Jr.; Graybeard; The Waco Kid; Scattergun Haines |
| Genre | superhero |
| Script | E. Nelson Bridwell |
| Pencils | Don Newton |
| Inks | Dave Hunt |
| Colors | Adrienne Roy |
| Letters | Gaspar Saladino |
| Notes | Actually a Captain Marvel, Jr. story. |
| Characters | Flash; The Destroyer |
| Pencils | Curt Swan |
| Notes | Advertisement for the Continental Baking Company who holds the registered trademarks for Hostess and Twinkies. |
| Characters | Hawkgirl; Superman; Batman; Captain Marvel; Black Canary; Green Arrow; Aquaman; Hawkman (all in masthead) |
| Script | Jack C. Harris |
| Letters | typeset |
| Notes | Fan letters page |