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 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 has 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 and ANNUAL #7-8; INCREDIBLE HULK (1968) #390-392; and material from X-FACTOR ANNUAL #5-6 and NEW MUTANTS ANNUAL #6.