X-Men: The Animated Series: Bloodlines

It's the final episode for the X-Men. At a Mutant/Human Relations Summit, Henry Peter Gyrich attacks and cripples Professor Xavier with an energy disruptor. The X-Men and Moira MacTaggert try to save Xavier, but all seems lost. Lilandra comes and has a cure, but Professor Xavier must leave with her and go with her to the Shi'Ar Empire to be cured. Meanwhile, Magneto makes final preparations to take over the world with his mutant army, but on the eve of the invasion Cyclops, Wolverine, and Jean Grey infiltrate Genosha to tell Magneto that Xavier is dying. He halts the assault on humankind out of respect for his greatest enemy, equal, and only friend.