There is no cure! Apocalypse uses the treatment to turn mutants into his slaves! It makes them hate everyone - humans and mutants!
...
like Apocalypse does. He wants to destroy everything! I had to help him; he would have killed me! He has
...
a secret command center
...
buried under Stonehenge
...
in England.
X-Men: The Animated Series (02/27/1993)
Season 1 Episode 10 - "Come the Apocalypse"