ตอนที่ 9: ยูอิค้นพบว่ายาเป็นสารกลายพันธุ์ที่แพร่ระบาด ขณะที่เอมมาเผชิญหน้ากับตัวการ

9

Yui reveals that the medication is experimental and designed to suppress mutant powers from awakening, but has instead become a viral mutagen. Emma follows Jun deep in the laboratory and confronts him as his true persona: Mastermind, leader of the Inner Circle, who used the U-men as part of the plan and framed Emma of affecting Jean. The two fight, then Marsh intervenes, but the X-Men arrive and save Emma. Mastermind affects Wolverine into attacking his own team, but Cyclops snaps him out of it. Emma manages to expose Mastermind. While the X-men confront the Inner Circle members, Xavier battles a psychic opponent in the void. (Source: Wikipedia)