Ep 14. Neogenic Nightmare Chapter 14: The Final Nightmare

Picking up where the previous episode left off, Spider-Man narrowly escapes from the Vulture during an explosion from the Vulture. Spider-Man believes he'll change back to his normal self after a short while, just as the kid in the park did earlier. However, he remains elderly, so he contacts Dr. Connors, whom he schedules to meet with the following day to see if he can be on any help.
Meanwhile, the Vulture has developed Spider-Man's mutagenic transformation, which was transferred to him when he stole his youth. The Vulture goes to Dr. Connors, explaining what has happened, and learns that he can only be cured by giving his youth back to Spider-Man. The Scorpion also wants to be Mac Gargan again, so he kidnaps Dr. Farley Stillwell to turn him back.