X-Men: Pryde of the X-Men pilot effectively marked the end of the Marvel animated universe created by DePatie-Freleng Enterprises/Marvel Productions, which began with "Fantastic Four" (1978) and continued with "Spider-Woman" (1979), "Spider-Man" (1981), "Spider-Man and His Amazing Friends" (1981) and "The Incredible Hulk" (1982). The X-Men themselves had previously guest starred in several episodes of "Spider-Man and His Amazing Friends", although that particular series isn't necessarily in the same continuity as "Pryde of the X-Men". Narrated by X-Men co-creator Stan Lee, "Pryde of the X-Men" stars Professor X and the X-Men who were known as Cyclops, Storm, Nightcrawler, Colossus, Wolverine, Kitty Pryde, and Dazzler saving
World War Hulk: X-Men tries to stop the Hulk, but is easily thrown aside into the mansion's grave yard. Mercury then reasons with the Hulk, telling him about the events of M-Day and saying that they understand his hurt and anger on the basis of their own suffering as mutants. Hulk relents and leaves without the Professor, reasoning that Xavier himself is in his own hell based on his own mistakes and that the X-Men have already suffered too much already. While the X-Men tend to the wounded, Cyclops finally forgives Professor X for not telling him about Vulcan and Juggernaut takes his leave