| Issue | #56 |
| Published | September 1968 |
| Frequency | monthly |
| Cover Price | 0.12 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Characters | Goliath [Hank Pym]; Black Panther; Hawkeye; Captain America [Steve Rogers]; Bucky [James Buchanan Barnes] |
| Genre | superhero |
| Pencils | John Buscema |
| Inks | Frank Giacoia |
| Reprinted | in Marvel Super Action (Marvel, 1977 series) #15; in Marvel Masterworks: The Avengers (Marvel, 2003 series) #6; in Essential Avengers (Marvel, 1999 series) #3 |
| Characters | Goliath [Hank Pym]; Black Panther; Hawkeye; Wasp; Captain America [Steve Rogers]; Bucky [James Buchanan Barnes]; Baron Zemo [Heinrich Zemo] |
| Genre | superhero |
| Script | Roy Thomas |
| Pencils | John Buscema |
| Inks | George Klein |
| Letters | Sam Rosen |
| Notes | Absent since #47, Captain America returns to be spotlighted in this story. This recounts the battle with Zemo where Bucky Barnes was killed and Captain America was deep-frozen at the end of World War II. Continued in Avengers Annual #2. |
| Reprinted | in Marvel Super Action (Marvel, 1977 series) #15; in Marvel Masterworks: The Avengers (Marvel, 2003 series) #6; in Essential Avengers (Marvel, 1999 series) #3; in Mitico Thor, Il (Editoriale Corno, 1971 series) #68 |