Members of X-Force all receive the same distress call! Jean decides to lead the investigation.
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(Cover Date: August, 1988)
Summary: The High Evolutionary has his Purifiers sterilize the Subterraneans for being evolutionary deadends. Apocalypse fights against the High Evolutionary due to his plans for evolving humanity. X-Factor joins the fight against the Purifiers after seeking out the Subterranean's powerful telepath.