Brotherhood vs X-Factor

X-Factor was sent on a mission to apprehend a mysterious figure who was revealed to be Madrox, alive and well. Madrox unconsciously stayed split into separate bodies, ensuring that the Legacy Virus would be contained in one body and not duplicate into the others. When the infected body died, the shock of its death caused Madrox to lose his memory. Madrox had been recruited by elements of the U.S. government who wanted to turn him into the ultimate secret agent, training him to become a one-man army.

Havok returned, seeking to combine the team with his Brotherhood allies. Three XUE mutants, Archer, Fixx, and Greystone, came to the past trapped in the bodies of other individuals. They were unable to return to their own time and briefly joined the team. Greystone slowly developed temporal insanity. In an attempt to return to his own time, Greystone built a flying time machine, but due to shoddy craftsmanship and unsound theories, the craft exploded, seemingly killing Greystone and Havok, who was attempting to stop him. However, Havok was actually sent to Earth-1298. The team finally disbanded.