| 0 | - | cover | 1 | pencils: Adam Kubert; colors: Richard Isanove | Logan, Wolverine |
| 1 | Collected Editions | promo (ad from the publisher) | 1 | script: ? (promo copy) | |
| 2 | Ultimate X-Men Hellfire & Brimstone | credits, title page | 1 | pencils: Kaare Andrews; inks: Kaare Andrews; colors: Dave McCaig | Wolverine [Logan]; Cyclops |
| 3 | Previously in Ultimate X-Men: | recap | 1 | pencils: Adam Kubert, Danny Miki; inks: Danny Miki; colors: Dave Stewart | Marvel Girl; Kitty Pryde |
| 4 | Ultimate X-Men #21 | cover reprint (on interior page) | 1 | pencils: Adam Kubert; colors: Richard Isanove; editing: Ralph Macchio | Wolverine [Logan] |
| 5 | Hellfire and Brimstone Part One of Five | comic story | 23 | script: Mark Millar; pencils: Adam Kubert; inks: Danny Miki; colors: Dave Stewart; letters: Chris Eliopoulos; editing: Ralph Macchio | X-Men [Kitty Pryde; Marvel Girl; Professor X; Colossus; Wolverine [Logan]; Beast; Cyclops; Storm]; Theresa Pryde; Mrs. Winterbottom; Zach |
| 6 | Ultimate X-Men #22 | cover reprint (on interior page) | 1 | pencils: Adam Kubert; colors: Richard Isanove; editing: Ralph Macchio | Marvel Girl |
| 7 | Hellfire and Brimstone Part Two of Five | comic story | 21 | script: Mark Millar; pencils: Adam Kubert, Danny Miki; inks: Danny Miki; colors: Dave Stewart; letters: Chris Eliopoulos; editing: Ralph Macchio | X-Men [Professor X; Marvel Girl; Beast; Kitty Pryde; Cyclops; Wolverine [Logan]]; Brotherhood of Mutants [Quicksilver; Orb-Weaver (introduction); Prosimian (introduction); Scarlet Witch; Blob; Sumatran; Saluki; Kathleen]; President Bush |
| 8 | Ultimate X-Men #23 | cover reprint (on interior page) | 1 | pencils: Adam Kubert; colors: Richard Isanove; editing: Ralph Macchio | Cyclops |
| 9 | Hellfire and Brimstone Part Three of Five | comic story | 24 | script: Mark Millar; pencils: Kaare Andrews; inks: Kaare Andrews, Rusty Beach; colors: Dave McCaig, Chris Sotomayor; letters: Chris Eliopoulos; editing: Ralph Macchio | X-Men [Wolverine [Logan]; Kitty Pryde; Beast; Marvel Girl; Cyclops; Storm; Colossus]; Brotherhood of Mutants [Prosimian; Blob (also as Naomi)]; Senator Andrew Turk; Iceman; Mr. Drake; Mrs. Drake |
| 10 | - | illustration | 1 | pencils: Adam Kubert, Danny Miki; inks: Danny Miki | Phoenix force |
| 11 | Ultimate X-Men #24 | cover reprint (on interior page) | 1 | pencils: Adam Kubert; colors: Richard Isanove; editing: Ralph Macchio | Iceman |
| 12 | Hellfire and Brimstone Part Four of Five | comic story | 23 | script: Mark Millar; pencils: Kaare Andrews; inks: Kaare Andrews; colors: Dave McCaig; letters: Chris Eliopoulos; editing: Ralph Macchio | X-Men [Cyclops; Wolverine; Kitty Pryde; Professor X; Marvel Girl; Colossus; Beast; Storm]; Brotherhood of Mutants [Prosimian; Blob]; Iceman; Senator Andrew Turk; Hellfire Club; Black King [Sebastian Shaw] (introduction); Mr. Drake; Mrs. Drake |
| 13 | Ultimate X-Men #25 | cover reprint (on interior page) | 1 | pencils: Adam Kubert; colors: Richard Isanove; editing: Ralph Macchio | Wolverine [Logan]; Colossus |
| 14 | Hellfire and Brimstone Part Five of Five | comic story | 38 | script: Mark Millar; pencils: Adam Kubert, Danny Miki; inks: Danny Miki; colors: Chris Sotomayor; letters: Chris Eliopoulos; editing: Ralph Macchio | X-Men [Storm; Professor X; Marvel Girl; Colossus; Beast]; Hellfire Club [Black King [Sebastian Shaw] (death); Black Bishop [Mister Seville] (death)]; Brotherhood of Mutants [Blob; Prosimian (death)]; Magneto; Mister Turner; Arnold; Mr. Greenspan |
| 15 | Issue #21 Cover Art by Adam Kubert | illustration | 1 | pencils: Adam Kubert; colors: Richard Isanove | Wolverine [Logan] |
| 16 | Issue #22 Cover Art by Adam Kubert | illustration | 1 | pencils: Adam Kubert; colors: Richard Isanove | Marvel Girl |
| 17 | Issue #23 Cover Art by Adam Kubert | illustration | 1 | pencils: Adam Kubert; colors: Richard Isanove | Cyclops |
| 18 | Issue #24 Cover Art by Adam Kubert | illustration | 1 | pencils: Adam Kubert; colors: Richard Isanove | Iceman |