| Issue | #20 |
| Published | June 1980 |
| Cover Price | $0.40 |
| Pages | 36 |
| Editing | Danny Fingeroth (Reprint Editor) |
| Genre | Superhero |
| Pencils | John Buscema |
| Inks | George Klein |
| Reprinted | in Marvel Super Action (Marvel, 1977 series) #20 (December 1968) [modified] |
| Characters | Avengers: Yellowjacket; Spider-man; Black Panther; Vision; Hawkeye; Goliath [Henry "Hank" Pym]; Wasp |
| Synopsis | Goliath returns as Yellowjacket, except that no one knows he is really the same person until next issue. |
| Genre | Superhero |
| Script | Roy Thomas |
| Pencils | John Buscema |
| Inks | George Klein |
| Letters | Sam Rosen |
| Editing | Stan Lee |
| Reprinted | from Avengers, The (Marvel, 1963 series) #59 (December 1968) |