Ascension (2) (S04E09)

The fierce conflict against Apocalypse intensifies as the X-Men, the Brotherhood, and the Acolytes unite in a desperate bid to thwart his plans to transform humanity into mutants. With the fate of the world hanging in the balance, these once-adversarial groups must set aside their differences to confront a common enemy and protect the very essence of humanity. As the clash escalates, alliances will be tested, and courage will be paramount in the fight for survival.