| 0 | - | cover | 1 | pencils: Dan Jurgens; inks: Jerry Ordway | |
| 1 | The Adventures of Alpha-Centurion | cover reprint (on interior page) | 1 | pencils: Barry Kitson; inks: Ray McCarthy; colors: Glenn Whitmore | Superman [Clark Kent; Kal-El]; Lois Lane; Alpha Centurion [Marcus Aelius] (statue) |
| 2 | The Hero of Metropolis | comic story | 22 | script: Karl Kesel; pencils: Peter Krause; inks: Jackson Guice; colors: Glenn Whitmore; letters: Albert DeGuzman | Superman [Clark Kent; Kal-El]; Alpha Centurion [Marcus Aelius]; Lois Lane; Jimmy Olsen; Perry White; The 100 [Jim Harper; Maggie Sawyer]; Bloody Mary (villain) |
| 3 | Nothing Left to Lose! | cover reprint (on interior page) | 1 | pencils: Jackson "Butch" Guice; inks: Jackson "Butch" Guice | Lois Lane; Superman [Clark Kent; Kal-El] |
| 4 | Chronocide | comic story | 22 | script: David Michelinie; pencils: Jackson Guice; inks: Denis Rodier; colors: Glenn Whitmore; letters: Bill Oakley | Superman [Clark Kent; Kal-El]; Lois Lane; Perry White; Murphy; Jimmy Olsen; Allie; Martha Kent; Jonathan Kent; Liri Lee; Emmett Vale (villain); Ernie (villain); Starro the Conqueror (villain) |
| 5 | - | cover reprint (on interior page) | 1 | pencils: Dan Jurgens; inks: Jerry Ordway | Bart Allen, Anima, Battalion, Dagon, Darkstar, Miri Delgado, Conner Kent, Dick Grayson, Green Lantern, Impulse, Killowat, Alex Lyons, Tara Markov, Courtney Mason |
| 6 | Zero Hour [Part 3] | comic story | 23 | script: Dan Jurgens; pencils: Dan Jurgens; inks: Jerry Ordway; colors: Gregory Wright; letters: Gaspar | Nathaniel Adam, Bart Allen, Amazing Man, Anima, Imra Ardeen, The Atom, Batgirl, Batman, Billy Batson, Battalion, Blue Beetle, Booster Gold, Captain Atom, Captain Marvel |
| 7 | Cross Roads, Conclusion | cover reprint (on interior page) | 1 | pencils: Dan Norton; inks: Gerry Fernandez; colors: Greystoke | Green Arrow, Oliver Queen |
| 8 | He Who Hesitates... | comic story | 24 | script: Kevin Dooley; pencils: Eduardo Barreto; inks: Eduardo Barreto; colors: Buzz Setzer; letters: John Costanza | Green Arrow [Oliver Queen]; Batman [Bruce Wayne] |
| 9 | Ground Zero! | cover reprint (on interior page) | 1 | pencils: Mitch Byrd; inks: Dan Davis; letters: Todd Klein | Warrior [Guy Gardner]; Extant; Steel; Green Lantern [Hal Jordan]; Batgirl [Barbara Gordon]; Supergirl [Matrix] |
| 10 | Killing Time! | comic story | 21 | script: Beau Smith; pencils: Mitch Byrd, Phil Jimenez, Howard Porter, Mike Parobeck, Jackson Guice; inks: Dan Davis; colors: Stuart Chaifetz; letters: Albert DeGuzman | Warrior [Guy Gardner]; Extant; Steel; Supergirl [Matrix]; Batgirl [Barbara Gordon]; Anthro; Java; Rough Bunch [Nighthawk; El Diablo; Bat Lash; Cinnamon; Johnny Thunder [John Tane]; Madame .44; Firehair; Scalphunter; Matt Savage]; Lady Blackhawk; Space Ranger; Green Lantern [Hal Jordan]; Kari Limbo |
| 11 | - | cover reprint (on interior page) | 1 | pencils: Dan Jurgens; inks: Jerry Ordway | Batgirl, Barbara Gordon, Green Arrow, Green Lantern, Hawkman, Katar Hol, Clark Kent, Oliver Queen, The Ray, Kyle Rayner, Matthew Ryder, Superman, Raymond Terrill, Waverider |
| 12 | Zero Hour [Part 4] | comic story | 24 | script: Dan Jurgens; pencils: Dan Jurgens; inks: Jerry Ordway; colors: Gregory Wright; letters: Gaspar | Nathaniel Adam, Marcus Aelius, Bart Allen, Alpha Centurion, Amazing Man, Aquaman, Imra Ardeen, The Atom, Batgirl, Batman Death, Booster Gold, Captain Atom, Michael Jon Carter, Jim Corrigan |
| 13 | End of an Era, The Real Conclusion: The Last Legionnaire | cover reprint (on interior page) | 1 | pencils: Stuart Immonen; inks: Ron Boyd; colors: Tom McCraw | Rokk Krinn, The Time Trapper |
| 14 | End of an Era, Finale: Borrowed Time! | comic story | 25 | script: Tom McCraw, Mark Waid; pencils: Stuart Immonen; inks: Ron Boyd; colors: Tom McCraw; letters: Bob Pinaha | Imra Ardeen, Querl Dox, Rokk Krinn, Lightning Lad, Live Wire, Polestar, Garth Ranzz, Saturn Girl, Alchemist, Apparition, Jan Arrah, B-5, Bouncing Boy, Brainiac 5 |
| 15 | Return of the Hero, 1 of 3 | cover reprint (on interior page) | 1 | pencils: Howard Porter; inks: Howard Porter; letters: Todd Klein | Green Lantern [Hal Jordan]; Aquaman; Martian Manhunter; Flash [Barry Allen]; Black Canary [Dinah Laurel Lance]; Triumph |
| 16 | The Program | comic story | 22 | script: Christopher Priest; pencils: Luke Ross; inks: Dennis Cramer, Matt Banning, Wayne Faucher, José Marzán Jr.; colors: Gene D'Angelo; letters: Clem Robins | Justice League America |
| 17 | Return of the Hero! 2 of 3 | cover reprint (on interior page) | 1 | pencils: Sal Velluto; inks: Jeff Albrecht; letters: Todd Klein | Triumph; Tasmanian Devil |
| 18 | Losers! | comic story | 22 | script: Christopher Priest; pencils: Greg LaRocque; inks: Rich Rankin; colors: Dave Grafe; letters: Bob Pinaha | Justice League Task Force |
| 19 | Return of the Hero! 3 of 3 | cover reprint (on interior page) | 1 | pencils: Charles Wojtkiewicz; inks: John Lowe | Triumph; Martian Manhunter [J'onn J'onzz]; L-Ron [Despero] |
| 20 | Triumph | comic story | 22 | script: Christopher Priest; pencils: Phil Jimenez; inks: John Stokes; colors: Gene D'Angelo; letters: Kevin Cunningham | Justice League [Triumph; Martian Manhunter [J'onn J'onzz]; Tasmanian Devil; Fire; L-Ron [Despero]; Elongated Man; Crimson Fox [Constance d'Aramis]]; Superman (cameo flashback); Flash [Barry Allen] (cameo flashback); Aquaman (cameo flashback); Black Canary (cameo flashback); Green Lantern [Hal Jordan |
| 21 | - | cover reprint (on interior page) | 1 | pencils: Tom Grummett; inks: Ray Kryssing | Tim Drake, Dick Grayson, Robin, Robin |
| 22 | Two Birds One Stone | comic story | 24 | script: Chuck Dixon; pencils: Tom Grummett; inks: Ray Kryssing; colors: Adrienne Roy; letters: Albert DeGuzman | Harvey Bullock, Tim Drake, Dick Grayson, Renée Montoya, Robin, Robin |
| 23 | - | cover reprint (on interior page) | 1 | pencils: Jim Balent; inks: Jim Balent | Catwoman; Mr. Ashton; Tulik (a sabretooth cat) |
| 24 | Broken Mirrors | comic story | 22 | script: Jo Duffy; pencils: Jim Balent; inks: Bob Smith; colors: Buzz Setzer; letters: Bobpin | Catwoman; Mr. Ashton; Tulik (a sabretooth cat) |
| 25 | - | cover reprint (on interior page) | 1 | pencils: Steve Crespo; inks: Will Blyberg; colors: Jean Segarra | Anima |
| 26 | Suddenly, Johnny Gets a Feeling... | comic story | 24 | script: Paul Witcover, Elizabeth Hand; pencils: Brent Anderson; inks: Will Blyberg; colors: Patricia Mulvihill; letters: Chris Eliopoulos | Anima [Courtney Mason]; Lost Johnny; Animus; Columbine; Malvolio; Rafael; Eris; Mania; Maxilla Yale |
| 27 | Deja Views | comic story | 11 | script: Mike McAvennie; pencils: Jason Armstrong; inks: Stan Woch; colors: Stuart Chaifetz; letters: Willie Schubert | Calendar Man, Chronos, David Clinton, Clock King, Julian Day, The Lord of Time, John Starr, The Time Commander, William Tockman |
| 28 | - | cover reprint (on interior page) | 1 | pencils: Bill Marimon; inks: Tom McWeeney | Damage [Grant Emerson]; New Titans [Arsenal [Roy Harper]; Changeling [Gar Logan]; Pantha]; Wildebeest |
| 29 | The Burning of Atlanta | comic story | 25 | script: Tom Joyner; pencils: Bill Marimon; inks: Don Hillsman; colors: Buzz Setzer; letters: John Costanza | Damage, Grant Emerson, Arn Munro, Iron Munro |
| 30 | - | cover reprint (on interior page) | 1 | | |
| 31 | Zero Hour [Part 5] | comic story | 28 | script: Dan Jurgens; pencils: Dan Jurgens; inks: Jerry Ordway; colors: Gregory Wright; letters: Gaspar | Nathaniel Adam, Marcus Aelius, Bart Allen, Alpha Centurion, Amazing Man, Arsenal, The Atom, Batgirl, Batman, Billy Batson, Captain Atom, Captain Marvel, Jim Corrigan, Damage |
| 32 | - | cover reprint (on interior page) | 1 | pencils: Darryl Banks; inks: Romeo Tanghal; colors: Steve Buccellato; editing: Curtis King | Parallax [Hal Jordan]; Green Lantern [Kyle Rayner] |
| 33 | Second Chances | comic story | 22 | script: Ron Marz; pencils: Darryl Banks; inks: Romeo Tanghal; colors: Steve Mattsson; letters: Albert De Guzman | Parallax; Green Lantern [Kyle Rayner] |
| 34 | - | cover reprint (on interior page) | 1 | pencils: Bill Marimon; inks: Tom McWeeney; colors: Rob Schwager | Damage [Grant Emerson] |
| 35 | Back Again | comic story | 24 | script: Tom Joyner; pencils: Bill Marimon; inks: Don Hillsman; colors: Buzz Setzer; letters: Bob Pinaha | Damage, Grant Emerson, Arn Munro, Iron Munro |
| 36 | - | cover reprint (on interior page) | 1 | pencils: Mike Wieringo; inks: José Marzán Jr. | Flash [Wally West, also as Kid Flash]; Linda Park (obscured); Max Mercury (obscured); Flash [Barry Allen]; Impulse [Bart Allen] |
| 37 | Flashing Back | comic story | 22 | script: Mark Waid; pencils: Mike Wieringo; inks: José Marzán Jr.; colors: Gina Going; letters: Gaspar | Flash [Wally West, also as Kid Flash]; Waverider; Team Turmoil [Rumble; Miasma; Caliber; Wildside]; Linda Park; Max Mercury; Teen Titans [Aqualad; Wonder Girl [Donna Troy]; Robin [Dick Grayson]]; Flash [Barry Allen]; Mary West; Rudolph West |
| 38 | - | cover reprint (on interior page) | 1 | pencils: Jon Bogdanove; inks: Dennis Janke; colors: Marjorie Strauss | Superman [Clark Kent; Kal-El] |
| 39 | Peer Pressure, Part 1: A Whole New World | comic story | 22 | script: Louise Simonson; pencils: Jon Bogdanove; inks: Dennis Janke; colors: Glenn Whitmore; letters: Ken Lopez | Superman [Clark Kent; Kal-El] (origin); Jor-El (flashback); Lara (flashback); Jonathan Kent (flashback); Martha Kent (flashback); Lois Lane; Perry White; Ron Troupe; Mrs. Weisinger; Chief Johnson; Lana Lang (flashback); Pete Ross (flashback); Mrs. Peach (flashback); Mr. Braverman (first appearance; |
| 40 | Zero Hour for Earth? | text story | 1 | pencils: Dan Jurgens; inks: Jerry Ordway | |
| 41 | DC Universe Timeline | comic story | 4 | pencils: Dan Jurgens; inks: Jerry Ordway | Ahri'ahn, Barry Allen, Aquaman, Arion, The Atom, Azrael, Bane, Batman, Billy Batson, Big Words, Black Canary, Black Canary, The Black Condor, Blackhawk |
| 42 | The End of Today... | promo (ad from the publisher) | 1 | | |
| 43 | Zero Month Sampler | promo (ad from the publisher) | 16 | script: various; pencils: various; inks: various; colors: various; letters: various | |
| 44 | Ask Any Creator and They'll Tell You That Some Projects Never Seem to End. | foreword, introduction, preface, afterword | 1 | script: Dan Jurgens | |
| 45 | Zero Hour | cover reprint (on interior page) | 1 | letters: typeset | |
| 46 | - | comic story | 7 | script: Dan Jurgens; pencils: Dan Jurgens; inks: Jerry Ordway; letters: Gaspar Saladino | Guy Gardner, Warrior; Alpha Centurion; Batgirl [Barbara Gordon]; Triumph; Green Arrow; Hawkman; The Spectre [Jim Corrigan]; Waverider; Damage; Extant; Parallax (obscured) |