Mac Gargan volunteered to be the subject of an experiment funded by J. Jonah Jameson to create a superhuman being to battle Spider-Man! Gargan’s physical strength was multiplied many times, and he was fitted with a cybernetic tail of awesome destructive potential. Now, the sinister Scorpion prowls the underworld of Manhattan seeking two things: the death of the amazing Spider-Man, and revenge on his one-time benefactor J. Jonah Jameson!