Collects All-New X-Factor #13-20.

Peter David's first, transformative X-FACTOR run in one volume! Havok, Polaris, Quicksilver, Multiple Man, Wolfsbane and Strong Guy are the all-new, all-different X-Factor! Sanctioned by the U.S. government to protect humans from mutants -- and vice versa -- they take on threats including Mister Sinister and his Nasty Boys, the Mutant Liberation Front and...the Incredible Hulk?! But their most challenging encounter is on the couch of super hero psychiatrist, Doc Samson! Whether it's battling the Brotherhood of Evil Mutants in the shadow of Genosha, or clashing with X-Force during the X-Cutioner's Song saga, this unlikely band of heroes have team chemistry like nothing you've ever seen -- and a unique style of humor that makes this series a true classic! COLLECTING: X-Factor (1986) 55, 70-92; X-Factor Annual (1986) 7-8; Incredible Hulk (1968) 390-392; material from X-Factor Annual (1986) 5-6; New Mutants Annual (1984) 6

The X-Men fight crime and battle evil.

Collects X-Factor (1986) #84-100, Annual #8. Peter David’s fan-favorite run concludes! X-Factor battles X-Force as Stryfe’s plans come to fruition, but can Professor X’s life be saved…by Apocalypse?! In the aftermath of “X-Cutioner’s Song,” X-Factor gets some much-needed counseling, encounters the maddening mercenary called Random — and finally faces the fearsome Chalker brothers! Helping the mutant X-Patriots leads the team to Genosha, where Madrox must make a frightening choice! And when Quicksilver is tempted by Magneto’s Acolytes, which team will he side with? As Forge takes charge, Polaris is targeted and X-Factor investigates the mysterious Haven! She can help free Wolfsbane from her Genoshan programming, but Haven’s message of enlightenment may mean destruction for the world — and to stop her, a member of X-Factor will die!

The X-Men fight crime and battle evil.

Peter David reinvents X-Factor -- again! Jamie Madrox has become a private eye. But with so many of his duplicates out in the world, is an identity crisis imminent? X-Factor Investigations recruits Guido, Wolfsbane, Siryn, M and Rictor -- plus Layla Miller, who knows stuff! But can the team help mutantkind navigate M-Day and deal with their unbalanced former ally Quicksilver? X-Factor butts heads with Singularity Investigations, X-Cell, the Isolationist and more. But what happens when two of Madrox's dupes want their own lives -- and when Jamie and Layla are thrown into the future? With Mutant Town under siege, Skrulls running rampant, personal problems tearing the team apart and a major change for Siryn, can X-Factor survive? COLLECTING: Madrox (2004) 1-5; X-Factor (2005) 1-20, 21-24 (A stories), 25-39; X-Factor: The Quick and the Dead One-Shot (2008); X-Factor Special: Layla Miller One-Shot (2008); She-Hulk (2005) 31

The divisiveness of the MU Civil War has spread to Jamie Madrox's X-Factor team.