Spider-Man (1994), Episode 18
Wolverine catches up with Spider-Man, who is hot on the trail of the missing Hank McCoy. Later Hobgoblin steals the mutant technology that Dr. Herbert Landon had prepared for the Kingpin. Spider-Man and Wolverine follow him and discover Beast's location as well as the plot to destroy all mutant-kind; the two team up and rescue Beast from becoming the first test subject of Landon's plot. But when Landon accidentally falls victim to his own experiment he is changed into a giant monster that feeds on electrical energy.