J. Jonah Jameson pays Dr. Stillwell to turn Mac Gargan into the Scorpion to try to capture Spider-Man. Stillwell's formula makes Gargan become more evil than he originally was and the Scorpion goes on a rampage and is finally stopped by Spider-Man.
On-sale date from Amazing Heroes #31, with newsstand on-sale date of 1983-09-06.
- - Includes "Post Office of the Past", a sampling of letters from the original publication.
