Once a genetic researcher studying the cloning of human beings, the Jackal became an insane super-villain when his experiments went out-of-control. Blaming Spider-Man for the tragedy in his life, the Jackal cloned the wall crawler to destroy him. Falling at the hands of Spider-Man the Jackal now returns with more clones, more secrets and an unstoppable need to settle his grudge with Spider-Man! Manipulating Spidey's life, the Jackal won't quit until he's destroyed Peter Parker's life for good!