| 0 | - | cover | 1 | pencils: Michael Golden; inks: Michael Golden; colors: Veronica Gandini | Fantastic Four [Mr. Fantastic [Reed Richards]; Invisible Girl [Susan Richards]; Human Torch [Johnny Storm]; Thing[Ben Grimm]]; Annihilus |
| 1 | - | credits, title page | 1 | pencils: Ron Frenz; inks: Joe Sinnott; colors: Christine Scheele | Mr. Fantastic [Reed Richards]; Thing [Ben Grimm]; Human Torch [Johnny Storm] |
| 2 | - | credits, title page | 1 | letters: typeset | |
| 3 | What If the Fantastic Four had not Gained Super-Powers? Plus! What if Richard Rider had not lost the Power of Nova? | cover reprint (on interior page) | 1 | pencils: John Byrne; inks: Terry Austin; letters: Rick Parker | Reed Richards; Johnny Storm; Ben Grimm; Sue Storm; Nova [Richard Rider] |
| 4 | What If the Fantastic Four Had Not Gained Their Powers? | comic story | 20 | script: John Byrne; pencils: John Byrne; inks: John Byrne; colors: Bob Sharen; letters: Joe Rosen | Fantastic Four [Mr. Fantastic [Reed Richards]; Thing [Ben Grimm]; Invisible Girl [Susan Storm]; Human Torch [John Storm]]; Mole Man; Watcher |
| 5 | What if Nova had not Given Up his Powers? | comic story | 18 | script: Bill Mantlo; pencils: Mike Vosburg; inks: Mike Vosburg; colors: Christie Scheele; letters: Rick Parker | Nova [Richard Rider]; Centurion; Protector; Comet; Powerhouse; Skrulls; Rom; Fantastic Four [Mr. Fantastic; the Thing; Human Torch [Johnny Storm]; Invisible Girl]; Watcher |
| 6 | Why Not? | letters page | 2 | script: Mark Gruenwald | |
| 7 | What If The Beast and the Thing Continued to Mutate? Plus: What if the Silver Surfer Lost the Power Cosmic? | cover reprint (on interior page) | 1 | pencils: Ed Hannigan; inks: Joe Rubinstein | |
| 8 | What if the Thing Had Continued to Mutate? | comic story | 15 | script: Tom DeFalco; pencils: Arvell Jones, Sam de la Rosa; inks: Sam de la Rosa; colors: Dave Billman; letters: Janice Chiang | Fantastic Four [Thing [Ben Grimm]; Mister Fantastic [Reed Richards]; Invisible Girl [Sue Storm Richards]; Human Torch [Johnhny Storm]]; Watcher [Uatu]; Giant-Man [Bill Foster]; AIM; MODOK; Captain America [Steve Rogers]; Alicia Masters |
| 9 | What if -- the Beast Had Truly Become a Beast? | comic story | 12 | script: Alan Weiss; pencils: Alan Weiss; inks: Jim Sherman; colors: Jim Sherman; letters: Rick Parker | X-Men [Beast [Hank McCoy]; Cyclops [Scott Summers]; Marvel Girl [Jean Grey]; Iceman [Bobby Drake]; Angel [Warren Worthington III]; Professor X [Charles Xavier]]; Avengers [Vision; Captain America [Steve Rogers]; Wonder Man [Simon Williams]; Thor; Iron Man [Tony Stark]; Scarlet Witch [Wanda Maximoff] |
| 10 | What if Galactus Had Turned the Silver Surfer Back into Norrin Radd? | comic story | 12 | script: David Anthony Kraft; pencils: Mike Vosburg; inks: Steve Mitchell; colors: Bob Sharen; letters: Diana Albers | Silver Surfer [Norrin Radd]; Watcher [Uatu]; Galactus; Shalla-Bal; Fantastic Four [Thing [Ben Grimm]; Invisible Girl [Sue Storm Richards]; Mister Fantastic [Reed Richards]; Human Torch [Johnny Storm]] |
| 11 | - | cover reprint (on interior page) | 1 | pencils: Alan Kupperberg; inks: Alan Kupperberg | Daredevil; Captain America; Vision; Scarlet Witch; Kingpin; Red Skull |
| 12 | The Leaving | comic story | 12 | script: David Michelinie; pencils: Paty Cockrum; inks: Andy Mushynsky; colors: George Roussos; letters: Diana Albers | Avengers; Vision; Scarlet Witch; Thor; Sunturion; Jocasta; Future version of Iron Man; Watcher |
| 13 | What If Sharon Carter Had Not Died? | comic story | 13 | script: Rich Margopoulos; pencils: Dan Reed; inks: Mike Esposito; colors: George Roussos; letters: Mike Higgins | Captain America; Red Skull; Sharon Carter; Nick Fury; Watcher |
| 14 | Daredevil: 2013 | comic story | 12 | script: Alan Kupperberg; pencils: Alan Kupperberg; inks: Alan Kupperberg; colors: Alan Kupperberg; letters: Alan Kupperberg | Daredevil; Black Widow; Foggy Nelson; Kingpin; Watcher |
| 15 | Why Not? | letters page | 2 | letters: typeset | |
| 16 | What if Thor Battled Conan the Barbarian | cover reprint (on interior page) | 1 | pencils: Ron Wilson; inks: Mike Mignola | Thor; Conan; Watcher |
| 17 | What if Thor of Asgard Had Met Conan the Barbarian? | comic story | 38 | script: Alan Zelenetz; pencils: Ron Wilson; inks: Danny Bulanadi; colors: George Roussos; letters: Janice Chiang | Thor; Conan; Watcher; Loki; Thoth-Amon; Crom |
| 18 | Why Not? | letters page | 2 | script: Bob Harras; pencils: John Buscema, Frank Miller; inks: Tom Palmer, Frank Miller | |
| 19 | What If Dr. Strange Had Not Become Master of the Mystic Arts? | cover reprint (on interior page) | 1 | pencils: Michael Golden; inks: Michael Golden; colors: Michael Golden | Dr. Strange; Dormammu; Nightmare |
| 20 | What if Dr. Strange Had Never Become Master of the Mystic Arts | comic story | 40 | script: Peter Gillis; pencils: Jackson; inks: Jackson, Sam Grainger; colors: Christie Scheele; letters: Diana Albers | Dr. Strange; Watcher; Barron Mordo; Ancient One; Dormammu; Nightmare; Clea; Don Blake [Thor]; Umar; Wong |
| 21 | What if Sub-Mariner Had Saved Atlantis from Its... Destiny? | cover reprint (on interior page) | 1 | pencils: Michael Golden; inks: Michael Golden; letters: Ron Zalme | Namor, the Sub-Mariner |
| 22 | What if... Destiny Had Not Destroyed Atlantis? | comic story | 40 | script: Alan Zelenetz; pencils: Marc Silvestri; inks: Mel Candido; colors: Christie Scheele; letters: Rick Parker | Namor, the Sub-Mariner; Watcher; Destiny [Paul Destine]; Byrrah; Princess Fen; King Thakorr; Krang; Neptune; Attuma |
| 23 | What if the Invisible Girl Had Died? | cover reprint (on interior page) | 1 | pencils: Michael Golden; inks: Michael Golden | Fantastic Four [Mr. Fantastic; Invisible Girl; Human Torch [Johnny Storm]; Thing]; Annihilus |
| 24 | What if Susan Richards Died in Childbirth? | comic story | 38 | script: Peter Gillis; pencils: Ron Frenz; inks: Joe Sinnott; colors: Christie Scheele; letters: Janice Chiang | Fantastic Four [Mr. Fantastic; Invisible Girl; Human Torch [Johnny Storm]; Thing]; Annihilus; Watcher; Crystal; Namor, the Sub-Mariner; Dr. Strange; Dr. Doom; Avengers [Captain America [Steve Rogers]; Wasp; Quicksilver; Scarlet Witch; Goliath [Hank Pym]; Hawkeye]; Willie Lumpkin; X-Men [Cyclops; Ice |
| 25 | Why Not? | letters page | 1 | letters: typeset | |
| 26 | What if Conan the Barbarian ...were Stranded in the 20th Century? | cover reprint (on interior page) | 1 | pencils: Bill Sienkiewicz; inks: Bill Sienkiewicz | Conan the Barbarian |
| 27 | What if -- Conan the Barbarian were Stranded in the 20th Century? | comic story | 28 | script: Peter B. Gillis; pencils: Bob Hall; inks: Bob Hall; colors: Ben Sean; letters: Janice Chiang | Conan; Captain America [Steve Rogers]; Ajujo; Watcher |
| 28 | Behold... | comic story | 11 | script: Mark Gruenwald; pencils: Mark Gruenwald; inks: Jack Abel; colors: Ben Sean; letters: Rick Parker | Dr. Strange; Silver Surfer; Phoenix; Eternity; Watcher |
| 29 | What If Captain America Were Revived Today? | cover reprint (on interior page) | 1 | pencils: Bill Sienkiewicz; inks: Bill Sienkiewicz; colors: Bill Sienkiewicz | Captain America [Steve Rogers] |
| 30 | What If Captain America Were Not Revived Until Today? | comic story | 38 | script: Peter B. Gillis; pencils: Sal Buscema; inks: Dave Simons; colors: George Roussos; letters: John Morelli | Captain America [Steve Rogers]; Captain America (of the 1950s); Bucky [Jack Monroe]; Sub-Mariner [Namor]; Avengers [Giant-Man [Henry Pym]; Wasp [Janet Van Dyne]; Thor; Iron Man [Tony Stark]]; Red Skull (Cameo flashback); Baron Zemo [Heinrich Zemo] (Cameo flashback); Nomad (Cameo flashback); Rick Jon |
| 31 | What If the Hulk Went-- --Berserk? | cover reprint (on interior page) | 1 | pencils: Bill Sienkiewicz; inks: Bill Sienkiewicz; colors: Bill Sienkiewicz; letters: Ron Zalme | Hulk [Bruce Banner] |
| 32 | What If the Hulk Went Berserk?! | comic story | 40 | script: Peter B. Gillis; pencils: Ron Wilson; inks: Ian Akin, Brian Garvey; colors: Bob Sharen; letters: John Morelli | Hulk [Bruce Banner]; Rick Jones; Watcher; Thunderbolt Ross; Glen Talbot; Fantastic Four [Invisible Girl; Thing; Mr. Fantastic; Human Torch [Johnny Storm]]; Thor; Iron Man [Tony Stark] |
| 33 | What If Spider-Man's Uncle Ben Had Lived? | cover reprint (on interior page) | 1 | pencils: Ron Frenz; inks: Bill Sienkiewicz | Spider-Man [Peter Parker]; Aunt May Parker; Uncle Ben Parker; J. Jonah Jameson; Green Goblin [Norman Osborn]; Dr. Octopus; Vulture; Sandman |
| 34 | What If Spider-Man's Uncle Ben Had Lived? | comic story | 39 | script: Peter B. Gillis; pencils: Ron Frenz, Sam de la Rosa; inks: Sam de la Rosa; colors: Bob Sharen; letters: John Morelli | Spider-Man [Peter Parker]; Watcher [Uatu]; Uncle Ben Parker; Aunt May Parker; J. Jonah Jameson; Flash Thompson; Green Goblin; John Jameson; Sandman (Cameo); Lizard (Cameo); Vulture (Cameo); Electro (Cameo); Big Man (Cameo); Betty Brant (Cameo); Doctor Octopus (Cameo) |
| 35 | What If Loki Had Found the Hammer of Thor? | cover reprint (on interior page) | 1 | pencils: Bill Sienkiewicz; inks: Bill Sienkiewicz; colors: Bill Sienkiewicz | Loki |
| 36 | What If Loki Found Thor's Hammer First?! | comic story | 39 | script: Peter B. Gillis; pencils: Kelley Jones; inks: Sam de la Rosa; colors: Bob Sharen; letters: Squid | Thor [Don Blake]; Loki; Heimdall; Watcher; Odin; Balder; Warriors Three [Fandral; Hogun; Volstagg]; Hela; Sif; Stone Men of Saturn |
| 37 | Why Not? | letters page | 1 | script: Ralph Macchio | |
| 38 | - | cover reprint (on interior page) | 0.25 | pencils: Bill Sienkiewicz; inks: Bill Sienkiewicz; colors: Bill Sienkiewicz | Loki |
| 39 | - | cover reprint (on interior page) | 0.25 | pencils: Ron Frenz; inks: Bill Sienkiewicz | Spider-Man [Peter Parker]; Aunt May Parker; Uncle Ben Parker; J. Jonah Jameson; Green Goblin [Norman Osborn]; Dr. Octopus; Vulture; Sandman |
| 40 | - | cover reprint (on interior page) | 0.25 | pencils: Michael Golden; inks: Michael Golden; colors: Veronica Gandini | Fantastic Four [Mr. Fantastic [Reed Richards]; Invisible Girl [Susan Storm]; Human Torch [Johnny Storm]; Thing [Ben Grimm]]; Annihilus |