
A rich telepath named Joseph Huber is driven mad because his mutant ability forces him to hear the thoughts of all mutants and it’s making him crazy.

Madrox doesn’t get Huber’s name right…

Meanwhile, somebody is pregnant.

Lots of people have sex in these issues so as a reader we’re left guessing about who it could be. Madrox already slept with Theresa and Monet at the same time (via his dupes). Rahne beds Rictor. Etc. It’s a freakin’ college dorm.
Siryn and M also look into a “purity” rock band who have songs about hating mutants, and the band hires Solo and a guy called “Clay” as their bodyguards.

Also, Valerie Cooper makes Guido the sheriff of Mutantown.
Turns out that Huber has pushed the purity singers to be anti-mutant to help progress his plan. Through that and other various (funny and creative) machinations, Huber gets X-Factor to organize a “Million Mutant March” for mutant rights–when what he really wants is to get a whole bunch of mutants into one place so he can kill them.
Layla figures out the truth, and Huber teleports several members of X-Factor to Antarctica to get them out of the way.

They nearly freeze to death but Madrox multiplies to create body heat.
But the rest of the team is able to thwart his efforts. After a battle in which Huber learns that he can’t affect Rictor (whose power is now Terrigen-based and not mutant), Huber slinks away.
Note: Half of each of the issues in this arc is devoted to the Endangered Species storyline, so what you’re seeing above really doesn’t take four issues. More like two.