Agent Brand's investigation of an orbiting laboratory in space ends with it self-destructing, damaging her escape ship. As the craft falls toward Earth, she radios the help of the X-Men, who save her before the craft can crash into San Francisco. In the crowd, Emma notices deceased former student Wallflower and follows after her. Laurie immediately transforms into a bio-sentinel and the team destroy it. Brand reveals that an individual called Kaga hacked into the X-Men's files, using Beast's work on deriving a live x-gene from dead mutants to recover dead mutants to recreate some of the X-Men's greatest foes, such as the Brood and bio-sentinels masquerading in cloned bodies of their former allies.